CN103219794B - Decoupling control method of multifunctional microprocessor control backup power automatic switch - Google Patents
Decoupling control method of multifunctional microprocessor control backup power automatic switch Download PDFInfo
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- CN103219794B CN103219794B CN201310146658.9A CN201310146658A CN103219794B CN 103219794 B CN103219794 B CN 103219794B CN 201310146658 A CN201310146658 A CN 201310146658A CN 103219794 B CN103219794 B CN 103219794B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
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Abstract
The invention belongs to a control technology of an electric power transmission and distribution network and relates to a decoupling control method of multifunctional microprocessor control backup power automatic switch. The decoupling control method of the multifunctional microprocessor control backup power automatic switch basically includes a method of controlling an expansion inner bridging line, a method of controlling inner bridging lines or a single bus segmented connecting line and a method of controlling a single bus connecting line, wherein the method of controlling expansion inner bridging line backup power automatic switch includes the steps of decoupling a standard expansion inner bridging line to two inner bridging lines, and making up a complete backup power automatic switch logic of the expansion inner bridging line under the common effect of control logics of the backup power automatic switch of the two inner bridging lines. The decoupling control method of the multifunctional microprocessor control backup power automatic switch can be applied to control of the backup power automatic switch of dual power supply, wherein the backup power automatic switch is formed by four once main connecting lines, such as the expansion inner bridging lines, the inner bridging lines and the single bus segmented connecting lines and the single bus connecting lines, of a power substation, the movement theory is simple, reliability is high, and the basic theory of the backup power automatic switch can be completely fit.
Description
Technical field
The invention belongs to the control technology of power transmission and distribution network, relate to the decoupling control method that a kind of multifunctional microcomputer control stand-by power supply drops into automatically.
Background technology
At present, the automatic throw-in equipment of emergency power supply of electric substation's operation common are the automatic throw-in equipment of emergency power supply that main electrical scheme of electric substation is internal bridge, single-trunk segmental wiring and single bus scheme.Main electrical scheme of electric substation is while expanding internal bridge, electric substation's construction may be divided into several phases construction, so main electrical scheme of electric substation just becomes internal bridge or single bus scheme, but automatic throw-in equipment of emergency power supply will arrange by an above-mentioned main electrical scheme.Therefore, the automatic throw-in equipment of emergency power supply of the above-mentioned multiple main electrical scheme of proposition adaptation is just necessary.Although proposed a scheme that fairly perfect multifunctional standby power supply drops into automatically in patent of invention CN102403782A " method that multifunctional microcomputer control stand-by power supply drops into automatically ", but when it is applicable to expand internal bridge, internal bridge (single-trunk segmental wiring) and single bus scheme available for different connection modes in a main electrical scheme, its logical circuit is still more complicated.
Described expansion internal bridge (see figure 1) refers to: in main electrical scheme of electric substation of transmission and distribution networks, include two-way power supply, between two-way power supply, be serially connected with four circuit breakers, i.e. the first circuit breaker 1QF, the second circuit breaker 2QF, the 3rd circuit breaker 3QF and the 4th circuit breaker 4QF, also connect respectively three transformers, i.e. the first transformer, the second transformer and the 3rd transformer, this mode of connection comprises two-way electric power incoming line, three step-down transformers, four circuit breakers, wherein two circuit breakers are electric power incoming line circuit breaker, and another two circuit breakers are bridge circuit breaker.The line side of electric power incoming line and high voltage side of transformer or low-pressure side are all connected to voltage transformer.
Described internal bridge (see figure 2) refers to: in main electrical scheme of electric substation of transmission and distribution networks, include two-way power supply, on two-way power supply, be serially connected with respectively the first circuit breaker 1QF and the 4th circuit breaker 4QF, also connect respectively two transformers, i.e. the first transformer and the 3rd transformer (or second transformer), between two-way power supply, also has a bridge circuit breaker, i.e. the second circuit breaker 2QF or the 3rd circuit breaker 3QF, the line side of electric power incoming line and transformer side are all connected to voltage transformer.
Described single-trunk segmental wiring (see figure 3) refers to: in main electrical scheme of electric substation of transmission and distribution networks, include two-way electric power incoming line, on two-way electric power incoming line, be serially connected with respectively the first circuit breaker 1QF and the 4th circuit breaker 4QF, be connected to again number one bus and No. second bus (or No. three bus), two buses also connect respectively two transformers, i.e. the first transformer and the second transformer (or the 3rd transformer), or be connected with respectively load outlet, between two buses, also have a section breaker, i.e. the second circuit breaker 2QF or the 3rd circuit breaker 3QF; On the line side of two-way electric power incoming line and two buses, be all connected to voltage transformer.
Described single bus scheme (see figure 4) refers to: in main electrical scheme of electric substation of transmission and distribution networks, include two-way electric power incoming line, on two-way electric power incoming line, be serially connected with respectively the first circuit breaker 1QF and the 4th circuit breaker 4QF, be connected to again bus, on two buses, also connect respectively two transformers, i.e. the first transformer and the 3rd transformer (or the 3rd transformer), or be connected with respectively load outlet, on the line side of two-way electric power incoming line and bus, be all connected to voltage transformer.
Summary of the invention
Problem to be solved by this invention is, provide that a kind of can be applied to main electrical scheme of transmission and distribution networks 220kV and following electric pressure electric substation be dual power supply comprises expansion internal bridge, internal bridge, the multifunctional standby power supply automatic throw-in equipment of this main electrical scheme of four kinds of electric substations of single-trunk segmental wiring and single bus scheme, operating principle is simple, reliability is high, what meet general principle that stand-by power supply automatically drops into completely comprises expansion internal bridge, internal bridge, the decoupling control method that the multifunctional microcomputer control stand-by power supply of this main electrical scheme of four kinds of electric substations of single-trunk segmental wiring and single bus scheme drops into automatically.
Provide the technical scheme of the inventive method below.
The decoupling control method that multifunctional microcomputer control stand-by power supply of the present invention drops into automatically comprises the control method of the control method, internal bridge or the single-trunk segmental wiring that expand internal bridge, these three kinds of basic control methods of control method of single bus scheme, wherein:
the control method of described expansion internal bridge prepared auto restart is: it is two internal bridges that standard is expanded to internal bridge decoupling zero, form first internal bridge and form second internal bridge by the first circuit breaker 1QF, the 3rd circuit breaker 3QF and the 4th circuit breaker 4QF by the first circuit breaker 1QF, the second circuit breaker 2QF and the 4th circuit breaker 4QF, formed the prepared auto restart logic of a complete expansion internal bridge by the control logic circuit acting in conjunction of these two internal bridges prepared auto restart separately; Wherein first internal bridge, the control logic circuit of its prepared auto restart is defined as prepared auto restart 1; Second internal bridge, the control logic circuit of its prepared auto restart is defined as prepared auto restart 2;
In the control logic circuit of above-mentioned prepared auto restart, primary connection mode control word is defined: definition prepared auto restart 1 logic stop and start control word is FS1, puts this logic of 1 expression and enables, and sets to 0 and represents this logical disablement; Definition prepared auto restart logic 2 stop and start control words are FS2, put this logic of 1 expression and enable, and set to 0 and represent this logical disablement; Defining the logical circuit stop and start control word relevant with the second circuit breaker 2QF is FS3, puts this logic of 1 expression and enables, and sets to 0 and represents this logical disablement; Defining the logical circuit stop and start control word relevant with the 3rd circuit breaker 3QF is FS4, puts this logic of 1 expression and enables, and sets to 0 and represents this logical disablement;
Primary connection mode is that while expanding internal bridge, above-mentioned control word FS1 and FS2 put 1, and FS3 and FS4 put 1;
the tripping operation control and the combined floodgate control method that expand internal bridge prepared auto restart respective circuit breakers are:
A. the tripping operation control of the first circuit breaker 1QF
Prepared auto restart 1 or prepared auto restart 2: when the first circuit breaker 1QF source current 1I1 is less than trip inspection no flow setpoint, the first circuit breaker 1QF supply voltage 1U1 is less than trip inspection definite value with no pressure, the 4th circuit breaker 4QF supply voltage 4U1 is greater than trip inspection has compression set value (trip inspection has pressure-controlled word KG1 to put 1) and the first circuit breaker 1QF manually to control the two-position relay 1KKJ of circuit breaker 1KK or its deciliter state when these conditions of position meet simultaneously after closing a floodgate (prepared auto restart 1 logic stop and start control word FS1 or prepared auto restart 2 logic stop and start control word FS2 put 1), through certain time delay tT1, to the first circuit breaker 1QF tripping operation control loop output pulse control signal, make the first circuit breaker 1QF tripping operation, export in-put of spare power supply tripping operation actuating signal simultaneously.
B. the tripping operation control of the 4th circuit breaker 4QF
Prepared auto restart 1 or prepared auto restart 2: when the 4th circuit breaker 4QF source current 4I1 is less than trip inspection no flow setpoint, the 4th circuit breaker 4QF supply voltage 4U1 is less than trip inspection definite value with no pressure, the first circuit breaker 1QF supply voltage 1U1 is greater than trip inspection has compression set value (trip inspection has pressure-controlled word KG1 to put 1) and the 4th circuit breaker 4QF manually to control the two-position relay 4KKJ of circuit breaker 4KK or its deciliter state when these conditions of position meet simultaneously after closing a floodgate (prepared auto restart 1 logic stop and start control word FS1 or prepared auto restart 2 logic stop and start control word FS2 put 1), through certain time delay tT4, to the 4th circuit breaker 4QF tripping operation control loop output pulse control signal, make the 4th circuit breaker 4QF tripping operation, export in-put of spare power supply tripping operation actuating signal simultaneously.
C. the first circuit breaker 1QF closes a floodgate and discharges and recharges control
C-1 discharging condition
Prepared auto restart 1 discharging condition 1
(1) when two-position relay 1KKJ position after closing a floodgate of hand control switch 1KK or its deciliter state of the first circuit breaker 1QF;
(2) when two-position relay 4KKJ position after separating brake of hand control switch 4KK or its deciliter state of the 4th circuit breaker 4QF;
(3) primary connection mode control word FS1 is 0;
(4) when the first tranformer protection action;
(5) when the first circuit breaker 1QF sends combined floodgate control command;
Prepared auto restart 1 discharging condition 2
(1) when two-position relay 1KKJ position after closing a floodgate of hand control switch 1KK or its deciliter state of the first circuit breaker 1QF;
(2) when two-position relay 2KKJ position after separating brake of hand control switch 2KK or its deciliter state of the second circuit breaker 2QF;
(3) primary connection mode control word FS1 is 0;
(4) when the first tranformer protection action;
(5) when the first circuit breaker 1QF sends combined floodgate control command;
Prepared auto restart 2 discharging conditions 1
(1) when two-position relay 1KKJ position after closing a floodgate of hand control switch 1KK or its deciliter state of the first circuit breaker 1QF;
(2) when two-position relay 4KKJ position after separating brake of hand control switch 4KK or its deciliter state of the 4th circuit breaker 4QF;
(3) primary connection mode control word FS2 is 0;
(4) when the first tranformer protection action;
(5) when the first circuit breaker 1QF sends combined floodgate control command;
Prepared auto restart 2 discharging conditions 2
(1) when two-position relay 1KKJ position after closing a floodgate of hand control switch 1KK or its deciliter state of the first circuit breaker 1QF;
(2) when two-position relay 3KKJ position after separating brake of hand control switch 3KK or its deciliter state of the 3rd circuit breaker 3QF;
(3) primary connection mode control word FS2 is 0;
(4) when the first tranformer protection action;
(5) when the first circuit breaker 1QF sends combined floodgate control command;
C-2 charge condition
Prepared auto restart 1 charge condition 1
(1) when two-position relay 4KKJ position after closing a floodgate of the 4th circuit breaker 4QF hand control switch 4KK or its deciliter state;
(2) when two-position relay 1KKJ position after separating brake of the first circuit breaker 1QF hand control switch 1KK or its deciliter state;
(3) when the open position relay 1TWJ of the first circuit breaker 1QF is in operate condition;
In the time that above-mentioned arbitrary charge condition is satisfied and arbitrary discharging condition does not meet, the first circuit breaker 1QF completes the charging of closing a floodgate and controls after charging time delay (delay time is 1Tcd1, can be made as 20 seconds).
Prepared auto restart 1 charge condition 2
(1) when two-position relay 2KKJ position after closing a floodgate of the second circuit breaker 2QF hand control switch 2KK or its deciliter state;
(2) when two-position relay 1KKJ position after separating brake of the first circuit breaker 1QF hand control switch 1KK or its deciliter state;
(3) when the open position relay 1TWJ of the first circuit breaker 1QF is in operate condition;
(4) primary connection mode control word FS3 is 1;
In the time that above-mentioned arbitrary charge condition is satisfied and arbitrary discharging condition does not meet, the first circuit breaker 1QF completes the charging of closing a floodgate and controls after charging time delay (delay time is 1Tcd2, can be made as 20 seconds).
Prepared auto restart 2 charge conditions 1
(1) when two-position relay 4KKJ position after closing a floodgate of the 4th circuit breaker 4QF hand control switch 4KK or its deciliter state;
(2) when two-position relay 1KKJ position after separating brake of the first circuit breaker 1QF hand control switch 1KK or its deciliter state;
(3) when the open position relay 1TWJ of the first circuit breaker 1QF is in operate condition;
In the time that above-mentioned arbitrary charge condition is satisfied and arbitrary discharging condition does not meet, the first circuit breaker 1QF completes the charging of closing a floodgate and controls after charging time delay (delay time is 1Tcd3, can be made as 20 seconds).
Prepared auto restart 2 charge conditions 2
(1) when two-position relay 3KKJ position after closing a floodgate of the 3rd circuit breaker 3QF hand control switch 3KK or its deciliter state;
(2) when two-position relay 1KKJ position after separating brake of the first circuit breaker 1QF hand control switch 1KK or its deciliter state;
(3) when the open position relay 1TWJ of the first circuit breaker 1QF is in operate condition;
(4) primary connection mode control word FS4 is 1;
In the time that above-mentioned arbitrary charge condition is satisfied and arbitrary discharging condition does not meet, the first circuit breaker 1QF completes the charging of closing a floodgate and controls after charging time delay (delay time is 1Tcd4, can be made as 20 seconds).
D. the first circuit breaker 1QF closes a floodgate and controls
D-1 prepared auto restart 1 first circuit breaker 1QF closes a floodgate and controls one
(1) when the first circuit breaker 1QF was open position originally, and really tripping of the 4th circuit breaker 4QF has been sent and checked to the 4th circuit breaker 4QF tripping operation control command; Or be less than the inspection definite value with no pressure of closing a floodgate (closing a floodgate inspection control word KG2 with no pressure while being 1) when the first transformer side voltage, simultaneously the two-position relay 4KKJ of the 4th circuit breaker 4QF hand control switch 4KK or its deciliter state after closing a floodgate position and the 4th circuit breaker 4QF in open position (the 4th circuit breaker 4QF position is not corresponding);
(2) 1Tcd1 charging delay time arrives;
(3) first tranformer protections do not move;
In the time that above condition meets, output pulse control signal to the first circuit breaker 1QF combined floodgate control loop after time delay (delay time is tH1), the first circuit breaker 1QF closes a floodgate, and exports in-put of spare power supply feed motion signal simultaneously.
D-2 prepared auto restart 1 first circuit breaker 1QF closes a floodgate and controls two
(1) when the first transformer side voltage is less than the inspection definite value with no pressure of closing a floodgate (in the time that the inspection control word KG2 with no pressure that closes a floodgate is 1), simultaneously the two-position relay 2KKJ of the second circuit breaker 2QF hand control switch 2KK or its deciliter state after closing a floodgate position and the second circuit breaker 2QF in open position (the second circuit breaker 2QF position is not corresponding, and the while, primary connection mode control word FS3 was set to 1);
(2) 1Tcd2 charging delay time arrives;
(3) first tranformer protections do not move;
In the time that above condition meets, output pulse control signal to the first circuit breaker 1QF combined floodgate control loop after time delay (delay time is tH1), the first circuit breaker 1QF closes a floodgate, and exports in-put of spare power supply feed motion signal simultaneously.
D-3 prepared auto restart 2 first circuit breaker 1QF close a floodgate and control one
(1) when the first circuit breaker 1QF was open position originally, and really tripping of the 4th circuit breaker 4QF has been sent and checked to the 4th circuit breaker 4QF tripping operation control command; Or be less than the inspection definite value with no pressure of closing a floodgate (closing a floodgate inspection control word KG2 with no pressure while being 1) when the first transformer side voltage, simultaneously the two-position relay 4KKJ of the 4th circuit breaker 4QF hand control switch 4KK or its deciliter state after closing a floodgate position and the 4th circuit breaker 4QF in open position (the 4th circuit breaker 4QF position is not corresponding);
(2) 1Tcd3 charging delay time arrives;
(3) first tranformer protections do not move;
In the time that above condition meets, output pulse control signal to the first circuit breaker 1QF combined floodgate control loop after time delay (delay time is tH1), the first circuit breaker 1QF closes a floodgate, and exports in-put of spare power supply feed motion signal simultaneously.
D-2 prepared auto restart 2 first circuit breaker 1QF close a floodgate and control two
(1) when the first transformer side voltage is less than the inspection definite value with no pressure of closing a floodgate (closing a floodgate inspection control word KG2 with no pressure while being 1), simultaneously the two-position relay 3KKJ of the 3rd circuit breaker 3QF hand control switch 3KK or its deciliter state after closing a floodgate position and the 3rd circuit breaker 3QF in open position (the 3rd circuit breaker 3QF position is not corresponding);
(2) 1Tcd4 charging delay time arrives;
(3) first tranformer protections do not move;
In the time that above condition meets, output pulse control signal to the first circuit breaker 1QF combined floodgate control loop after time delay (delay time is tH1), the first circuit breaker 1QF closes a floodgate, and exports in-put of spare power supply feed motion signal simultaneously.
E. the second circuit breaker 2QF closes a floodgate and discharges and recharges control
E-1 discharging condition
Prepared auto restart 1 discharging condition 1
(1) when two-position relay 2KKJ position after closing a floodgate of hand control switch 2KK or its deciliter state of the second circuit breaker 2QF;
(2) when two-position relay 4KKJ position after separating brake of hand control switch 4KK or its deciliter state of the 4th circuit breaker 4QF;
(3) primary connection mode control word FS1 is 0;
(4) when the second tranformer protection action;
(5) when the second circuit breaker 2QF sends combined floodgate control command;
Prepared auto restart 1 discharging condition 2
(1) when two-position relay 2KKJ position after closing a floodgate of hand control switch 2KK or its deciliter state of the second circuit breaker 2QF;
(2) when two-position relay 1KKJ position after separating brake of hand control switch 1KK or its deciliter state of the first circuit breaker 1QF;
(3) primary connection mode control word FS1 is 0;
(4) when the first tranformer protection action;
(5) when the second circuit breaker 2QF sends combined floodgate control command;
E-2 charge condition
Prepared auto restart 1 charge condition 1
(1) when two-position relay 4KKJ position after closing a floodgate of the 4th circuit breaker 4QF hand control switch 4KK or its deciliter state;
(2) when two-position relay 2KKJ position after separating brake of the second circuit breaker 2QF hand control switch 2KK or its deciliter state;
(3) when the open position relay 2TWJ of the second circuit breaker 2QF is in operate condition;
(4) primary connection mode control word FS3 is 1;
In the time that above-mentioned arbitrary charge condition is satisfied and arbitrary discharging condition does not meet, the second circuit breaker 2QF completes the charging of closing a floodgate and controls after charging time delay (delay time is 2Tcd1, can be made as 20 seconds).
Prepared auto restart 1 charge condition 2
(1) when two-position relay 1KKJ position after closing a floodgate of the first circuit breaker 1QF hand control switch 1KK or its deciliter state;
(2) when two-position relay 2KKJ position after separating brake of the second circuit breaker 2QF hand control switch 2KK or its deciliter state;
(3) when the open position relay 2TWJ of the second circuit breaker 2QF is in operate condition;
(4) primary connection mode control word FS3 is 1;
In the time that above-mentioned arbitrary charge condition is satisfied and arbitrary discharging condition does not meet, the second circuit breaker 2QF completes the charging of closing a floodgate and controls after charging time delay (delay time is 2Tcd2, can be made as 20 seconds).
F. the second circuit breaker 2QF closes a floodgate and controls
F-1 prepared auto restart 1 second circuit breaker 2QF closes a floodgate and controls one
(1) when the second circuit breaker 2QF was open position originally, and work as the 4th circuit breaker 4QF tripping operation control command and sent and checked really tripping of the 4th circuit breaker 4QF; Or be less than the inspection definite value with no pressure of closing a floodgate (closing a floodgate inspection control word KG2 with no pressure while being 1) when the second transformer side voltage, simultaneously the two-position relay 4KKJ of the 4th circuit breaker 4QF hand control switch 4KK or its deciliter state after closing a floodgate position and the two-position relay 3KKJ of the 4th circuit breaker 4QF in open position (the 4th circuit breaker 4QF position is not corresponding) or while the 3rd circuit breaker 3QF hand control switch 3KK or its deciliter state after closing a floodgate position and the 3rd circuit breaker 3QF in open position (the 3rd circuit breaker 3QF position is not corresponding);
(2) 2Tcd1 charging delay time arrives;
(3) second tranformer protections do not move;
In the time that above condition meets, output pulse control signal to the second circuit breaker 2QF combined floodgate control loop after time delay (delay time is tH2), the second circuit breaker 2QF closes a floodgate, and exports in-put of spare power supply feed motion signal simultaneously.
F-2 prepared auto restart 1 second circuit breaker 2QF closes a floodgate and controls two
(1) when the second circuit breaker 2QF was open position originally, and really tripping of the first circuit breaker 1QF has been sent and checked to the first circuit breaker 1QF tripping operation control command; Or be less than the inspection definite value with no pressure of closing a floodgate (closing a floodgate inspection control word KG2 with no pressure while being 1) when the first transformer side voltage, simultaneously the two-position relay 1KKJ of the first circuit breaker 1QF hand control switch 1KK or its deciliter state after closing a floodgate position and the first circuit breaker 1QF in open position (the first circuit breaker 1QF position is not corresponding);
(2) 2Tcd2 charging delay time arrives;
(3) first tranformer protections do not move;
In the time that above condition meets, output pulse control signal to the second circuit breaker 2QF combined floodgate control loop after time delay (delay time is tH2), the second circuit breaker 2QF closes a floodgate, and exports in-put of spare power supply feed motion signal simultaneously.
G. the 3rd circuit breaker 3QF closes a floodgate and discharges and recharges control
G-1 discharging condition
Prepared auto restart 2 discharging conditions 1
(1) when two-position relay 3KKJ position after closing a floodgate of hand control switch 3KK or its deciliter state of the 3rd circuit breaker 3QF;
(2) when two-position relay 4KKJ position after separating brake of hand control switch 4KK or its deciliter state of the 4th circuit breaker 4QF;
(3) primary connection mode control word FS2 is 0;
(4) when the 3rd tranformer protection action;
(5) when the 3rd circuit breaker 3QF sends combined floodgate control command;
Prepared auto restart 2 discharging conditions 2
(1) when two-position relay 3KKJ position after closing a floodgate of hand control switch 3KK or its deciliter state of the 3rd circuit breaker 3QF;
(2) when two-position relay 1KKJ position after separating brake of hand control switch 1KK or its deciliter state of the first circuit breaker 1QF;
(3) primary connection mode control word FS2 is 0;
(4) when the second tranformer protection action;
(5) when the 3rd circuit breaker 3QF sends combined floodgate control command;
G-2 charge condition
Prepared auto restart 1 charge condition 1
(1) when two-position relay 4KKJ position after closing a floodgate of the 4th circuit breaker 4QF hand control switch 4KK or its deciliter state;
(2) when two-position relay 3KKJ position after separating brake of the 3rd circuit breaker 3QF hand control switch 3KK or its deciliter state;
(3) when the open position relay 3TWJ of the 3rd circuit breaker 3QF is in operate condition;
(4) primary connection mode control word FS4 is 1;
In the time that above-mentioned arbitrary charge condition is satisfied and arbitrary discharging condition does not meet, the 3rd circuit breaker 3QF completes the charging of closing a floodgate and controls after charging time delay (delay time is 3Tcd1, can be made as 20 seconds).
Prepared auto restart 2 charge conditions 2
(1) when two-position relay 1KKJ position after closing a floodgate of the first circuit breaker 1QF hand control switch 1KK or its deciliter state;
(2) when two-position relay 3KKJ position after separating brake of the 3rd circuit breaker 3QF hand control switch 3KK or its deciliter state;
(3) when the open position relay 3TWJ of the 3rd circuit breaker 3QF is in operate condition;
(4) primary connection mode control word FS4 is 1;
In the time that above-mentioned arbitrary charge condition is satisfied and arbitrary discharging condition does not meet, the second circuit breaker 2QF completes the charging of closing a floodgate and controls after charging time delay (delay time is 3Tcd2, can be made as 20 seconds).
H. the 3rd circuit breaker 3QF closes a floodgate and controls
H-1 prepared auto restart 2 the 3rd circuit breaker 3QF closes a floodgate and controls one
(1) when the 3rd circuit breaker 3QF was open position originally, and really tripping of the 4th circuit breaker 4QF has been sent and checked to the 4th circuit breaker 4QF tripping operation control command; Or be less than the inspection definite value with no pressure of closing a floodgate (closing a floodgate inspection control word KG2 with no pressure while being 1) when the 3rd transformer side voltage, simultaneously the two-position relay 4KKJ of the 4th circuit breaker 4QF hand control switch 4KK or its deciliter state after closing a floodgate position and the 4th circuit breaker 4QF in open position (the 4th circuit breaker 4QF position is not corresponding);
(2) 3Tcd1 charging delay time arrives;
(3) the 3rd tranformer protections do not move;
In the time that above condition meets, output pulse control signal to the three circuit breaker 3QF combined floodgate control loops after time delay (delay time is tH3), the 3rd circuit breaker 3QF closes a floodgate, and exports in-put of spare power supply feed motion signal simultaneously.
H-2 prepared auto restart 2 the 3rd circuit breaker 3QF closes a floodgate and controls two
(1) when the 3rd circuit breaker 3QF was open position originally, and really tripping of the first circuit breaker 1QF has been sent and checked to the first circuit breaker 1QF tripping operation control command; Or be less than the inspection definite value with no pressure of closing a floodgate (closing a floodgate inspection control word KG2 with no pressure while being 1) when the second transformer side voltage, simultaneously the two-position relay 1KKJ of the first circuit breaker 1QF hand control switch 1KK or its deciliter state after closing a floodgate position and the two-position relay 2KKJ of the first circuit breaker 1QF in open position (the first circuit breaker 1QF position is not corresponding) or the second circuit breaker 2QF hand control switch 2KK or its deciliter state after closing a floodgate position and the second circuit breaker 2QF in open position (the second circuit breaker 2QF position is not corresponding);
(2) 3Tcd2 charging delay time arrives;
(3) second tranformer protections do not move;
In the time that above condition meets, output pulse control signal to the three circuit breaker 3QF combined floodgate control loops after time delay (delay time is tH3), the 3rd circuit breaker 3QF closes a floodgate, and exports in-put of spare power supply feed motion signal simultaneously.
I.4QF breaker closing discharges and recharges control
I-1 discharging condition
Prepared auto restart 1 discharging condition 1
(1) when two-position relay 4KKJ position after closing a floodgate of hand control switch 4KK or its deciliter state of the 4th circuit breaker 4QF;
(2) when two-position relay 1KKJ position after separating brake of hand control switch 1KK or its deciliter state of the first circuit breaker 1QF;
(3) primary connection mode control word FS1 is 0;
(4) when the 3rd tranformer protection action;
(5) when the 4th circuit breaker 4QF sends combined floodgate control command;
Prepared auto restart 1 discharging condition 2
(1) when two-position relay 4KKJ position after closing a floodgate of hand control switch 4KK or its deciliter state of the 4th circuit breaker 4QF;
(2) when two-position relay 2KKJ position after separating brake of hand control switch 2KK or its deciliter state of the second circuit breaker 2QF;
(3) primary connection mode control word FS1 is 0;
(4) when the 3rd tranformer protection action;
(5) when the 4th circuit breaker 4QF sends combined floodgate control command;
Prepared auto restart 2 discharging conditions 1
(1) when two-position relay 4KKJ position after closing a floodgate of hand control switch 4KK or its deciliter state of the 4th circuit breaker 4QF;
(2) when two-position relay 1KKJ position after separating brake of hand control switch 1KK or its deciliter state of the first circuit breaker 1QF;
(3) primary connection mode control word FS2 is 0;
(4) when the 3rd tranformer protection action;
(5) when the 4th circuit breaker 4QF sends combined floodgate control command;
Prepared auto restart 2 discharging conditions 2
(1) when two-position relay 4KKJ position after closing a floodgate of hand control switch 4KK or its deciliter state of the 4th circuit breaker 4QF;
(2) when two-position relay 3KKJ position after separating brake of hand control switch 3KK or its deciliter state of the 3rd circuit breaker 3QF;
(3) primary connection mode control word FS2 is 0;
(4) when the 3rd tranformer protection action;
(5) when the 4th circuit breaker 4QF sends combined floodgate control command;
I-2 charge condition
Prepared auto restart 1 charge condition 1
(1) when two-position relay 1KKJ position after closing a floodgate of the first circuit breaker 1QF hand control switch 1KK or its deciliter state;
(2) when two-position relay 4KKJ position after separating brake of the 4th circuit breaker 4QF hand control switch 4KK or its deciliter state;
(3) when the open position relay 4TWJ of the 4th circuit breaker 4QF is in operate condition;
In the time that above-mentioned arbitrary charge condition is satisfied and arbitrary discharging condition does not meet, the 4th circuit breaker 4QF completes the charging of closing a floodgate and controls after charging time delay (delay time is 4Tcd1, can be made as 20 seconds).
Prepared auto restart 1 charge condition 2
(1) when two-position relay 2KKJ position after closing a floodgate of the second circuit breaker 2QF hand control switch 2KK or its deciliter state;
(2) when two-position relay 4KKJ position after separating brake of the 4th circuit breaker 4QF hand control switch 4KK or its deciliter state;
(3) when the open position relay 4TWJ of the 4th circuit breaker 4QF is in operate condition;
(4) primary connection mode control word FS3 is 1;
In the time that above-mentioned arbitrary charge condition is satisfied and arbitrary discharging condition does not meet, the 4th circuit breaker 4QF completes the charging of closing a floodgate and controls after charging time delay (delay time is 4Tcd2, can be made as 20 seconds).
Prepared auto restart 2 charge conditions 1
(1) when two-position relay 1KKJ position after closing a floodgate of the first circuit breaker 1QF hand control switch 1KK or its deciliter state;
(2) when two-position relay 4KKJ position after separating brake of the 4th circuit breaker 4QF hand control switch 4KK or its deciliter state;
(3) when the open position relay 4TWJ of the 4th circuit breaker 4QF is in operate condition;
In the time that above-mentioned arbitrary charge condition is satisfied and arbitrary discharging condition does not meet, when completing the charging of closing a floodgate after charging time delay (delay time is 4Tcd3, can be made as 20 seconds), the 4th circuit breaker 4QF controls.
Prepared auto restart 2 charge conditions 2
(1) when two-position relay 3KKJ position after closing a floodgate of the 3rd circuit breaker 3QF hand control switch 3KK or its deciliter state;
(2) when two-position relay 4KKJ position after separating brake of the 4th circuit breaker 4QF hand control switch 4KK or its deciliter state;
(3) when the open position relay 4TWJ of the 4th circuit breaker 4QF is in operate condition;
(4) primary connection mode control word FS4 is 1;
In the time that above-mentioned arbitrary charge condition is satisfied and arbitrary discharging condition does not meet, the 4th circuit breaker 4QF completes the charging of closing a floodgate and controls after charging time delay (delay time is 4Tcd4, can be made as 20 seconds).
J. the 4th circuit breaker 4QF closes a floodgate and controls
J-1 prepared auto restart 1 the 4th circuit breaker 4QF closes a floodgate and controls one
(1) when the 4th circuit breaker 4QF was open position originally, and really tripping of the first circuit breaker 1QF has been sent and checked to the first circuit breaker 1QF tripping operation control command; Or be less than the inspection definite value with no pressure of closing a floodgate (closing a floodgate inspection control word KG2 with no pressure while being 1) when the 3rd transformer side voltage, simultaneously the two-position relay 1KKJ of the first circuit breaker 1QF hand control switch 1KK or its deciliter state after closing a floodgate position and the first circuit breaker 1QF in open position (the first circuit breaker 1QF position is not corresponding);
(2) 4Tcd1 charging delay time arrives;
(3) the 3rd tranformer protections do not move;
In the time that above condition meets, output pulse control signal to the four breaker closing control loops after time delay (delay time is tH4), the 4th circuit breaker 4QF closes a floodgate, and exports in-put of spare power supply feed motion signal simultaneously.
J-2 prepared auto restart 1 the 4th circuit breaker 4QF closes a floodgate and controls two
(1) when the 3rd transformer side voltage is less than the inspection definite value with no pressure of closing a floodgate (closing a floodgate inspection control word KG2 with no pressure while being 1), simultaneously the two-position relay 2KKJ of the second circuit breaker 2QF hand control switch 2KK or its deciliter state after closing a floodgate position and the second circuit breaker 2QF in open position (the second circuit breaker 2QF position is not corresponding);
(2) 4Tcd2 charging delay time arrives;
(3) the 3rd tranformer protections do not move;
In the time that above condition meets, output pulse control signal to the four circuit breaker 4QF combined floodgate control loops after time delay (delay time is tH4), the 4th circuit breaker 4QF closes a floodgate, and exports in-put of spare power supply feed motion signal simultaneously.
J-3 prepared auto restart 2 the 4th circuit breaker 4QF closes a floodgate and controls one
(1) when the 4th circuit breaker 4QF was open position originally, and really tripping of the first circuit breaker 1QF has been sent and checked to the first circuit breaker 1QF tripping operation control command; Or be less than the inspection definite value with no pressure of closing a floodgate (closing a floodgate inspection control word KG2 with no pressure while being 1) when the 3rd transformer side voltage, simultaneously the two-position relay 1KKJ of the first circuit breaker 1QF hand control switch 1KK or its deciliter state after closing a floodgate position and the first circuit breaker 1QF in open position (the first circuit breaker 1QF position is not corresponding);
(2) 4Tcd3 charging delay time arrives;
(3) the 3rd tranformer protections do not move;
In the time that above condition meets, output pulse control signal to the four circuit breaker 4QF combined floodgate control loops after time delay (delay time is tH4), the 4th circuit breaker 4QF closes a floodgate, and exports in-put of spare power supply feed motion signal simultaneously.
J-4 prepared auto restart 2 the 4th circuit breaker 4QF closes a floodgate and controls two
(1) when the 3rd transformer side voltage is less than the inspection definite value with no pressure of closing a floodgate (closing a floodgate inspection control word KG2 with no pressure while being 1), simultaneously the two-position relay 3KKJ of the 3rd circuit breaker 3QF hand control switch 3KK or its deciliter state after closing a floodgate position and the 3rd circuit breaker 3QF in open position (the 3rd circuit breaker 3QF position is not corresponding);
(2) 4Tcd4 charging delay time arrives;
(3) the 3rd tranformer protections do not move;
In the time that above condition meets, output pulse control signal to the four circuit breaker 4QF combined floodgate control loops after time delay (delay time is tH4), the 4th circuit breaker 4QF closes a floodgate, and exports in-put of spare power supply feed motion signal simultaneously.
K. abnormal signal control
The 1 abnormal signal control of K-1 prepared auto restart
(1) when the first transformer side or the second transformer side or the 3rd transformer side voltage are less than the inspection definite value with no pressure of closing a floodgate (in the time that the inspection control word KG2 with no pressure that closes a floodgate is 1), after certain time-delay, send abnormal signal;
(2) when the first circuit breaker 1QF does not send tripping operation control command, be less than two-position relay 1KKJ that trip inspection definite value with no pressure and the first circuit breaker 1QF manually control circuit breaker 1KK or its deciliter state when position, after certain time-delay, send abnormal signal after closing a floodgate and the first circuit breaker 1QF source current 1I1 is less than trip inspection no flow setpoint or the first circuit breaker 1QF supply voltage 1U1;
(3) when the 4th circuit breaker 4QF does not send tripping operation control command, be less than two-position relay 4KKJ that trip inspection definite value with no pressure and the 4th circuit breaker 4QF manually control circuit breaker 4KK or its deciliter state when position, after certain time-delay, send abnormal signal after closing a floodgate and the 4th circuit breaker 4QF source current 4I1 is less than trip inspection no flow setpoint or the 4th circuit breaker 4QF supply voltage 4U1.
The 2 abnormal signal controls of K-2 prepared auto restart
(1) when the first transformer side or the second transformer side or the 3rd transformer side voltage are less than the inspection definite value with no pressure of closing a floodgate (in the time that the inspection control word KG2 with no pressure that closes a floodgate is 1), after certain time-delay, send abnormal signal;
(2) when the first circuit breaker 1QF does not send tripping operation control command, be less than two-position relay 1KKJ that trip inspection definite value with no pressure and the first circuit breaker 1QF manually control circuit breaker 1KK or its deciliter state when position, after certain time-delay, send abnormal signal after closing a floodgate and the first circuit breaker 1QF source current 1I1 is less than trip inspection no flow setpoint or the first circuit breaker 1QF supply voltage 1U1;
(3) when the 4th circuit breaker 4QF does not send tripping operation control command, be less than two-position relay 4KKJ that trip inspection definite value with no pressure and the 4th circuit breaker 4QF manually control circuit breaker 4KK or its deciliter state when position, after certain time-delay, send abnormal signal after closing a floodgate and the 4th circuit breaker 4QF source current 4I1 is less than trip inspection no flow setpoint or the 4th circuit breaker 4QF supply voltage 4U1.
the control method of described internal bridge or single-trunk segmental wiring prepared auto restart is: when operational mode is internal bridge or during for single-trunk segmental wiring, on the control logic circuit basis of above-mentioned expansion internal bridge, by the control word FS1 of primary connection mode put 1 and FS2 set to 0, simultaneously FS3 put 1 and FS4 set to 0; Or the control word FS1 of primary connection mode is set to 0 with FS2 and puts 1, and FS3 sets to 0 with FS4 and puts 1 simultaneously;
When " primary connection mode control word " FS1 put 1 and FS2 set to 0, and FS3 puts 1 and FS4 while setting to 0 (being prepared auto restart 1 logic), in expanding, in main electrical scheme of bridge, only have the first circuit breaker 1QF, the second circuit breaker 2QF(the 3rd circuit breaker 3QF position to be communicated with on electric), the 4th circuit breaker 4QF and the first transformer, the 3rd transformer (or second transformer).Due to FS1 put 1 and FS2 set to 0, and FS3 put 1 and FS4 set to 0, therefore the logic relevant with prepared auto restart 2 is ineffective, the logic of the combined floodgate of the 3rd circuit breaker 3QF can not be charged and the recharge logic loop locking relevant with the 3rd circuit breaker 3QF and ineffective.In the time that an operational mode is internal bridge, 1BCJ is that the first tranformer protection, 3BCJ and 2BCJ are the 3rd tranformer protection (or second tranformer protection); In the time that an operational mode is single-trunk segmental wiring, 1BCJ is that first paragraph bus protection or inlet wire 1 protection, 3BCJ and 2BCJ are that second segment bus protection (or the 3rd section of bus protection) or inlet wire 2 are protected.
When " primary connection mode control word ", FS1 sets to 0 with FS2 and puts 1, and FS3 sets to 0, to put 1(with FS4 be prepared auto restart 2 logics) time, in expanding, in main electrical scheme of bridge, only have the first circuit breaker 1QF, the 3rd circuit breaker 3QF(the second circuit breaker 2QF position to be communicated with on electric), the 4th circuit breaker 4QF and the first transformer (or second transformer), the 3rd transformer.Put 1 because FS1 sets to 0 with FS2, and FS3 sets to 0 and put 1 with FS4, therefore the logic relevant with prepared auto restart 1 is ineffective, the logic of the combined floodgate of the second circuit breaker 2QF can not be charged and the recharge logic loop locking relevant with the second circuit breaker 2QF and ineffective.In the time that an operational mode is internal bridge, 1BCJ and 2BCJ are that the first tranformer protection (or second tranformer protection), 3BCJ are the 3rd tranformer protection; In the time that an operational mode is single-trunk segmental wiring, 1BCJ and 2BCJ are first paragraph (or second segment) bus protection or inlet wire 1 is protected, 3BCJ is the 3rd section of bus protection or inlet wire 2 is protected.
Internal bridge or single-trunk segmental wiring control method are on the control method basis of above-mentioned expansion internal bridge, by with the 3rd circuit breaker 3QF(or the second circuit breaker 2QF) relevant recharge logic loop locking.
the control method of described single bus scheme is: in the time that an operational mode is single bus scheme, on the control logic logical circuit basis of above-mentioned expansion internal bridge, by the control word FS1 of primary connection mode put 1 and FS2 set to 0, simultaneously control word FS3 sets to 0 with FS4 and sets to 0; Or the control word FS1 of primary connection mode is set to 0 with FS2 and puts 1, and control word FS3 sets to 0 with FS4 and sets to 0 simultaneously.1BCJ, 3BCJ are the bus protection (or tap into respectively line 1 protect and tap into line 2 protect) of single busbar connection.Due to FS1 put 1 and FS2 set to 0, and FS3 sets to 0 and sets to 0 with FS4, be that (or FS1 sets to 0 with FS2 and puts 1 prepared auto restart 1 logic, and FS3 sets to 0 and sets to 0 with FS4, be prepared auto restart 2 logics), therefore the logic of the combined floodgate of the second circuit breaker 2QF, the 3rd circuit breaker 3QF can not be charged and the recharge logic loop locking relevant with the second circuit breaker 2QF, the 3rd circuit breaker 3QF and ineffective.
Single bus scheme control method is on the control method basis of above-mentioned expansion internal bridge, by the recharge logic loop locking relevant with the second circuit breaker 2QF with the 3rd circuit breaker 3QF.
the advantage of this programme
The method that microcomputer control standby power of the present invention drops into automatically meets the general principle that stand-by power supply drops into automatically completely, and compared with the method using in existing microcomputer type automatic throw-in equipment of emergency power supply, tool has the following advantages:
1. the main electrical scheme of electric substation that has adopted the control logic acting in conjunction of the prepared auto restart of two interior bridge switch to complete and to adapt to applied transmission and distribution networks comprises the technical scheme of the automatic throw-in equipment of emergency power supply of a main electrical scheme of four kinds of electric substations that expands internal bridge, internal bridge, single-trunk segmental wiring and single bus scheme.
2. adopted by the circuit breaker of power supply (or losing power supply) and completed charging and discharging circuit control program, while thering is equally combined floodgate, checked advantage easily with no pressure;
3. the same not corresponding startup loop that adopts similar reclosing, start one of loop as prepared auto restart, there is clear and definite, simple, the reliable advantage of operating criterion, and can correct circuit breaker jump, the correction loop of the circuit breaker jump of need not separately setting up defences, thereby each circuit breaker jump problem, particularly bridge circuit breaker jump problem are solved;
4. adopted by check power supply dead electricity loop start power supply circuit breaker trip time start prepared auto restart closing circuit, start two of loop as prepared auto restart, can be used as not corresponding startup loop and start supplementing of loop as prepared auto restart, make the startup of prepared auto restart more reliable;
5. while having adopted combined floodgate, check scheme with no pressure (also can adopt while combined floodgate and check and the scheme same period only need go out to add this function in this logic), when having solved when the electric substation moving and having had local power plant, prevent the problem of non-Switching Synchronization;
6. the scheme that has adopted the corresponding main transformer breaker closing of which platform main transformer protection action blocking, prevents from causing full institute of this electric substation dead electricity.
Brief description of the drawings
Main wiring diagram of bridge in Tu1Shi electric substation expands;
Main wiring diagram of bridge in Tu2Shi electric substation;
Main wiring diagram of Tu3Shi electric substation sectionalized single busbar connection;
Main wiring diagram of Tu4Shi electric substation single busbar connection;
Fig. 5 is that the inventive method embodiment is for bridge prepared auto restart 1 theory diagram in the decoupling zero of multi-functional prepared auto restart;
Fig. 6 is that the inventive method embodiment is for bridge prepared auto restart 2 theory diagrams in the decoupling zero of multi-functional prepared auto restart.
Embodiment
Control word in Fig. 5, Fig. 6 is described as follows:
| Control word title | Control word is 1 o'clock | Control word is 0 o'clock |
| Trip inspection has pressure-controlled word KG1 | Trip inspection has compression functions to drop into | Trip inspection has compression functions to exit |
| Inspection control word KG2 with no pressure closes a floodgate | The inspection of closing a floodgate drops into without compression functions | The inspection of closing a floodgate is exited without compression functions |
FS1, FS2, FS3, FS4 control word and primary connection mode relation in Fig. 5, Fig. 6 are as follows:
| Control word title | FS1 | FS2 | FS3 | FS4 |
| Expand internal bridge | 1 | 1 | 1 | 1 |
| Internal bridge or single-trunk segmental wiring | 1(or 0) | 0(or 1) | 1(or 0) | 0(or 1) |
| Single bus scheme | 1(or 0) | 0(or 1) | 0 | 0 |
In Fig. 5, Fig. 6, letter is described as follows:
<1U1-represents that the first circuit breaker 1QF supply voltage is less than trip inspection definite value with no pressure, and the first circuit breaker 1QF power supply is with no pressure;
<4U1-represents that the 4th circuit breaker 4QF supply voltage is less than trip inspection definite value with no pressure, and the 4th circuit breaker 4QF power supply is with no pressure;
>1U1-represents that the first circuit breaker 1QF supply voltage is greater than trip inspection and has compression set value, and the first circuit breaker 1QF power supply has pressure;
>4U1-represents that the 4th circuit breaker 4QF supply voltage is greater than trip inspection and has compression set value, and the 4th circuit breaker 4QF power supply has pressure;
<1I1-represents that the first circuit breaker 1QF source current is less than trip inspection no flow setpoint, and the first circuit breaker 1QF power supply is without stream;
<4I1-represents that the 4th circuit breaker 4QF source current is less than trip inspection no flow setpoint, and the 4th circuit breaker 4QF power supply is without stream;
<1U2-represents that the first high voltage side of transformer or low-pressure side bus voltage are less than the inspection definite value with no pressure of closing a floodgate;
<2U2-represents that the second high voltage side of transformer or low-pressure side bus voltage are less than the inspection definite value with no pressure of closing a floodgate;
<3U2-represents that the 3rd high voltage side of transformer or low-pressure side bus voltage are less than the inspection definite value with no pressure of closing a floodgate;
1KKJ-represents that the first circuit breaker 1QF manually controls two-position relay position after closing a floodgate of circuit breaker 1KK or its deciliter state;
2KKJ-represents that the second circuit breaker 2QF manually controls two-position relay position after closing a floodgate of circuit breaker 2KK or its deciliter state;
3KKJ-represents that the 3rd circuit breaker 3QF manually controls two-position relay position after closing a floodgate of circuit breaker 3KK or its deciliter state;
4KKJ-represents that the 4th circuit breaker 4QF manually controls two-position relay position after closing a floodgate of circuit breaker 4KK or its deciliter state;
1TWJ-represents that the first circuit breaker 1QF is in open position;
2TWJ-represents that the second circuit breaker 2QF is in open position;
3TWJ-represents that the 3rd circuit breaker 3QF is in open position;
4TWJ-represents that the 4th circuit breaker 4QF is in open position;
1BCJ-represents the first tranformer protection action;
2BCJ-represents the second tranformer protection action;
3BCJ-represents the 3rd main transformer protection action;
In Fig. 5,6, symbol description is as follows:
presentation logic and relation, when initial conditions all meets, output is effectively;
-presentation logic or relation, initial conditions is arbitrary while meeting, and output is effectively;
-expression delay tripping the time;
-expression time delay 20 seconds;
-expression charging delay time;
-expression time-delay closing the time;
-expression 200ms pulse output;
-expression the second circuit breaker 2QF trip(ping) circuit;
-expression the 3rd circuit breaker 3QF trip(ping) circuit;
-expression the 4th circuit breaker 4QF trip(ping) circuit;
-expression the first circuit breaker 1QF closing circuit;
-expression the second circuit breaker 2QF closing circuit;
-expression the 3rd circuit breaker 3QF closing circuit;
-expression the 4th circuit breaker 4QF closing circuit
-expression prepared auto restart tripping operation actuating signal;
-expression prepared auto restart feed motion signal;
-be expressed as contrary with input signal;
-expression abnormal signal;
expand internal bridge prepared auto restart specific embodiment:
As shown in Figure 1, the expansion internal bridge of the dual power supply that the main electrical scheme of electric substation in the applied transmission and distribution networks of method of the present invention is standard, include two-way power supply, on two-way power supply, be serially connected with respectively the first circuit breaker 1QF, the second circuit breaker 2QF, the 3rd circuit breaker 3QF and the 4th circuit breaker 4QF, also connect respectively three transformers (i.e. the first transformer, the second transformer and the 3rd transformer), the line side of electric power incoming line and high voltage side of transformer or low-pressure side are all connected to voltage transformer.Be two-way electric power incoming line, three step-down transformers, four circuit breakers.
In prepared auto restart control logic Fig. 5, Fig. 6, operational mode control word FS1 and FS2 put 1, and operational mode control word FS3 and FS4 put 1.1BCJ is that the first tranformer protection, 2BCJ are that the second tranformer protection, 3BCJ are the 3rd tranformer protection; <1U2 is that the first transformer inspection is with no pressure, and <2U2 is that the second transformer inspection is with no pressure, and <3U2 is that the 3rd transformer inspection is with no pressure.Provide the inventive method below and be applied to the stand-by power supply embodiment of the expansion internal bridge form of input automatically:
(i), operational mode 1: circuit breaker 1QF, 2QF, 3QF operation, the 4th circuit breaker 4QF stand-by heat
1 preparatory stage
Prepared auto restart 1: circuit breaker 1QF, 2QF are combined floodgate running status, 1KK, the 2KK(of its corresponding operating circuit breaker or two-position relay 1KKJ, 2KKJ) remember for after closing a floodgate, the 4th circuit breaker 4QF is stand-by heat, the 4KK(of its corresponding operating circuit breaker or two-position relay 4KKJ) remember for after separating brake.Because 1KK, 2KK are state after closing a floodgate, so the first circuit breaker 1QF trip(ping) circuit is open, and circuit breaker 1QF, the locking of 2QF closing circuit; Open the 4th circuit breaker 4QF combined floodgate charge circuit 4Tcd1,4Tcd2 charge in the time that the 4th circuit breaker 4QF meets charge condition simultaneously, and thoroughly electric discharge immediately while not satisfying condition meets charging again after charge condition.
Prepared auto restart 2: circuit breaker 1QF, 3QF are combined floodgate running status, 1KK, the 3KK(of its corresponding operating circuit breaker or two-position relay 1KKJ, 3KKJ) remember for after closing a floodgate, the 4th circuit breaker 4QF is stand-by heat, the 4KK(of its corresponding operating circuit breaker or two-position relay 4KKJ) remember for after separating brake.Because 1KK, 3KK are state after closing a floodgate, so the first circuit breaker 1QF trip(ping) circuit is open, and circuit breaker 1QF, the locking of 3QF closing circuit; Open the 4th circuit breaker 4QF combined floodgate charge circuit 4Tcd3,4Tcd4 charge in the time that the 4th circuit breaker 4QF meets charge condition simultaneously, and thoroughly electric discharge immediately while not satisfying condition meets charging again after charge condition.
2 course of action
2.1 inlet wire 1 power supply dead electricity
(1) prepared auto restart 1: because inlet wire 1 power supply dead electricity is examined with no pressure and has after pressure without stream, offside the 4th circuit breaker 4QF power supply through the first circuit breaker 1QF, the first circuit breaker 1QF tripping operation after time delay tT1.In the time that the first circuit breaker 1QF tripping operation control command has been sent 1QF tripping operation and check really tripping of the first circuit breaker 1QF, after the first circuit breaker 1QF tripping operation, 1TWJ is closed represents that 1QF is in trip position, and 1KKJ is state after closing a floodgate, thereby generation the first circuit breaker 1QF position is not corresponding, after checking that the 3rd transformer inspection is with no pressure, after the 4th circuit breaker 4QF combined floodgate charge circuit 4Tcd1 has charged, time delay tH4 starts closing pulse to the four circuit breaker 4QF closing circuits.Or the 4th circuit breaker 4QF be open position originally, really tripping (becoming open position) of confirmation the first circuit breaker 1QF after the first circuit breaker 1QF tripping operation control command is sent, after the 4th circuit breaker 4QF combined floodgate charge circuit 4Tcd1 has charged, time delay tH4 starts closing pulse to the four circuit breaker 4QF closing circuits.
Prepared auto restart 2: because inlet wire 1 power supply dead electricity is examined with no pressure and has after pressure without stream, offside the 4th circuit breaker 4QF power supply through the first circuit breaker 1QF, the first circuit breaker 1QF trips after time delay tT1.In the time that the first circuit breaker 1QF tripping operation control command has been sent 1QF tripping operation and check really tripping of the first circuit breaker 1QF, after the first circuit breaker 1QF tripping operation, 1TWJ is closed represents that 1QF is in trip position, and 1KKJ is state after closing a floodgate, thereby generation the first circuit breaker 1QF position is not corresponding, after checking that the 3rd transformer inspection is with no pressure, after the 4th circuit breaker 4QF combined floodgate charge circuit 4Tcd3 has charged, time delay tH4 starts closing pulse to the four circuit breaker 4QF closing circuits.Or the 4th circuit breaker 4QF be open position originally, really tripping (becoming open position) of confirmation the first circuit breaker 1QF after the first circuit breaker 1QF tripping operation control command is sent, after the 4th circuit breaker 4QF combined floodgate charge circuit 4Tcd3 has charged, time delay tH4 starts closing pulse to the four circuit breaker 4QF closing circuits.
(2) prepared auto restart 1: if power supply dead electricity is caused by the first transformer or the action of the second tranformer protection; because protection action locking has adopted blocking; the 4th circuit breaker 4QF combined floodgate charge circuit can not be discharged and be blocked, therefore the 4th circuit breaker 4QF still can move combined floodgate.
Prepared auto restart 2: if power supply dead electricity caused by the first tranformer protection action, because protection action locking has adopted blocking, the 4th circuit breaker 4QF combined floodgate charge circuit can not be discharged and be blocked, therefore the 4th circuit breaker 4QF still can move combined floodgate; If power supply dead electricity is caused by the 3rd tranformer protection action, the electric discharge immediately due to the 3rd tranformer protection action of the 4th circuit breaker 4QF charge circuit, the 4th circuit breaker 4QF closing circuit is blocked simultaneously, therefore the 4th circuit breaker 4QF can not close a floodgate.
(3) prepared auto restart 1: if power supply dead electricity causes because of circuit breaker 1QF or 2QF jump, 1TWJ or 2TWJ can be closed, and 1KKJ or 2KKJ are still state after closing a floodgate, same generation 1QF or 2QF circuit breaker position are not corresponding, after the 4th circuit breaker 4QF combined floodgate charge circuit 4Tcd1,4Tcd2 have charged, on inspection the 3rd transformer with no pressure after, time delay tH4 starts closing pulse to the four circuit breaker 4QF closing circuits
Prepared auto restart 2: if power supply dead electricity causes because of circuit breaker 1QF or 3QF jump, 1TWJ or 3TWJ can be closed, and 1KKJ or 3KKJ are still state after closing a floodgate, same generation 1QF or 3QF circuit breaker position are not corresponding, after the 4th circuit breaker 4QF combined floodgate charge circuit 4Tcd3,4Tcd4 have charged, on inspection the 3rd transformer with no pressure after, time delay tH4 starts closing pulse to the four circuit breaker 4QF closing circuits.
(5) if manually pull open circuit breaker 1QF or 2QF or 3QF, 1KKJ or 2KKJ or 2KKJ state after original combined floodgate becomes state after separating brake, the circuit breaker position of 1QF or 2QF or 3QF is not corresponding is false, therefore prepared auto restart 1: the closing circuit that can not start the 4th circuit breaker 4QF; Therefore prepared auto restart 2: the closing circuit that can not start the 4th circuit breaker 4QF.
(ii), operational mode 2: circuit breaker 1QF, 2QF, 4QF operation, the 3rd circuit breaker 3QF stand-by heat
1 preparatory stage
Prepared auto restart 1: circuit breaker 1QF, 2QF, 4QF are combined floodgate running status, 1KK, 2KK, 4KK(or two-position relay 1KKJ, the 2KKJ of its corresponding operating circuit breaker, 4KKJ) remember for after closing a floodgate.Because 1KK, 2KK, 4KK are state after closing a floodgate, so circuit breaker 1QF, 4QF trip(ping) circuit are open, and circuit breaker 1QF, 2QF, the locking of 4QF closing circuit, so prepared auto restart 1 closing circuit is open.
Prepared auto restart 2: circuit breaker 1QF, 4QF are combined floodgate running status, 1KK, the 4KK(of its corresponding operating circuit breaker or two-position relay 1KKJ, 4KKJ) remember for after closing a floodgate, the 3rd circuit breaker 3QF is stand-by heat, the 3KK(of its corresponding operating circuit breaker or two-position relay 3KKJ) remember for after separating brake.Because 1KK, 4KK are state after closing a floodgate, so circuit breaker 1QF, 4QF trip(ping) circuit are open, and closing circuit locking; Open the 3rd circuit breaker 3QF combined floodgate charge circuit 3Tcd1,3Tcd2 charge in the time that the 3rd circuit breaker 3QF meets charge condition simultaneously, and thoroughly electric discharge immediately while not satisfying condition meets charging again after charge condition.
2 course of action
2.1 inlet wire 1 power supply dead electricity
(1) prepared auto restart 2: because inlet wire 1 power supply dead electricity is examined with no pressure and has after pressure without stream, offside the 4th circuit breaker 4QF power supply through the first circuit breaker 1QF, the first circuit breaker 1QF tripping operation after time delay tT1.In the time that the first circuit breaker 1QF tripping operation control command has been sent 1QF tripping operation and check really tripping of the first circuit breaker 1QF, after the first circuit breaker 1QF tripping operation, 1TWJ is closed represents that 1QF is in trip position, and 1KKJ is state after closing a floodgate, thereby generation the first circuit breaker 1QF position is not corresponding, after the 3rd circuit breaker 3QF combined floodgate charge circuit 3Tcd2 has charged, on inspection the second transformer with no pressure after, time delay tH3 starts closing pulse to the three circuit breaker 3QF closing circuits.Or the 3rd circuit breaker 3QF be open position originally, really tripping (becoming open position) of confirmation the first circuit breaker 1QF after the first circuit breaker 1QF circuit breaker trip control command is sent, after the 3rd circuit breaker 3QF combined floodgate charge circuit 3Tcd2 has charged, time delay tH3 starts closing pulse to the three circuit breaker 3QF closing circuits.
(2) prepared auto restart 2: if power supply dead electricity is caused by the first tranformer protection action; because protection action locking has adopted blocking; the 3rd circuit breaker 3QF combined floodgate charge circuit can not be discharged and be blocked, therefore the 3rd circuit breaker 3QF still can move combined floodgate.If power supply dead electricity caused by the second tranformer protection action, because protection action locking has adopted blocking, the 3rd circuit breaker 3QF combined floodgate charge circuit can be discharged and be blocked, therefore the 3rd circuit breaker 3QF can not move combined floodgate.
(3) prepared auto restart 2: if power supply dead electricity causes because of the first circuit breaker 1QF jump, 1TWJ can be closed, and 1KKJ is still state after closing a floodgate, the same first circuit breaker 1QF position that produces is not corresponding, after the 3rd circuit breaker 3QF combined floodgate charge circuit 3Tcd2 has charged, on inspection the second transformer with no pressure after, time delay tH3 starts closing pulse to the three circuit breaker 3QF closing circuits.
If power supply dead electricity is second to cause because of circuit breaker 2QF jump, 2TWJ can be closed, and 2KKJ is still state after closing a floodgate, same produce second because of circuit breaker 2QF position not corresponding, after the 3rd circuit breaker 3QF combined floodgate charge circuit 3Tcd2 has charged, on inspection the second transformer with no pressure after, time delay tH3 starts closing pulse to the three circuit breaker 3QF closing circuits.
(4) if manually pull open circuit breaker 1QF or 2QF, 1KKJ or 2KKJ state after original combined floodgate becomes state after separating brake, and the position of circuit breaker 1QF or 2QF is not corresponding is false, therefore prepared auto restart 2: the closing circuit that can not start the 3rd circuit breaker 3QF.
2.2 inlet wire 2 power supply dead electricity
(1) prepared auto restart 2: because inlet wire 2 power supply dead electricity are examined with no pressure and have after pressure without stream, offside the first circuit breaker 1QF power supply through the 4th circuit breaker 4QF, the 4th circuit breaker 4QF trips after time delay tT4.In the time that the 4th circuit breaker 4QF tripping operation control command has been sent 4QF tripping operation and check really tripping of the 4th circuit breaker 4QF, after the 4th circuit breaker 4QF tripping operation, 4TWJ is closed represents that 4QF is in trip position, and 4KKJ is state after closing a floodgate, thereby generation the 4th circuit breaker 4QF position is not corresponding, on inspection the 3rd transformer with no pressure after, after the 3rd circuit breaker 3QF combined floodgate charge circuit 3Tcd1 has charged, time delay tH3 starts closing pulse to the three circuit breaker 3QF closing circuits.Or the 3rd circuit breaker 3QF be open position originally, really tripping (becoming open position) of confirmation the 4th circuit breaker 4QF after the 4th circuit breaker 4QF circuit breaker trip control command is sent, after the 3rd circuit breaker 3QF combined floodgate charge circuit 3Tcd1 has charged, time delay tH3 starts closing pulse to the three circuit breaker 3QF closing circuits.
(2) prepared auto restart 2: if power supply dead electricity is caused by the 3rd tranformer protection action; because protection action locking has adopted blocking; the electric discharge immediately due to the 3rd tranformer protection action of the 3rd circuit breaker 3QF charge circuit; the 3rd circuit breaker 3QF closing circuit is blocked simultaneously, therefore the 3rd circuit breaker 3QF can not close a floodgate.
(3) prepared auto restart 2: if power supply dead electricity causes because of the 4th circuit breaker 4QF jump, 4TWJ can be closed, and 4KKJ is still state after closing a floodgate, same the 4th circuit breaker 4QF position that produces is not corresponding, after the 3rd circuit breaker 3QF combined floodgate charge circuit 3Tcd1 has charged, on inspection the 3rd transformer with no pressure after, time delay tH3 starts closing pulse to the three circuit breaker 3QF closing circuits.
(4) if manually pull open the 4th circuit breaker 4QF, 4KKJ state after original combined floodgate becomes state after separating brake, and the circuit breaker position of 4QF is not corresponding is false, therefore prepared auto restart 2: the closing circuit that can not start the 3rd circuit breaker 3QF.
(iii), operational mode 3: circuit breaker 1QF, 3QF, 4QF operation, the second circuit breaker 2QF stand-by heat
1, the preparatory stage
Prepared auto restart 1: circuit breaker 1QF, 4QF are combined floodgate running status, 1KK, the 4KK(of its corresponding operating circuit breaker or two-position relay 1KKJ, 4KKJ) remember for after closing a floodgate, the second circuit breaker 2QF is stand-by heat, the 2KK(of its corresponding operating circuit breaker or two-position relay 2KKJ) remember for after separating brake.Because 1KK, 4KK are state after closing a floodgate, so circuit breaker 1QF, 4QF trip(ping) circuit are open, and closing circuit locking; Open the second circuit breaker 2QF combined floodgate charge circuit 2Tcd1,2Tcd2 charge in the time that the second circuit breaker 2QF meets charge condition simultaneously, and thoroughly electric discharge immediately while not satisfying condition meets charging again after charge condition.
Prepared auto restart 2: circuit breaker 1QF, 3QF, 4QF are combined floodgate running status, 1KK, 3KK, 4KK(or two-position relay 1KKJ, the 3KKJ of its corresponding operating circuit breaker, 4KKJ) remember for after closing a floodgate.Because 1KK, 3KK, 4KK are state after closing a floodgate, so circuit breaker 1QF, 4QF trip(ping) circuit are open, and circuit breaker 1QF, 3QF, the locking of 4QF closing circuit, prepared auto restart 2 closing circuits are open.
2 course of action
2.1 inlet wire 1 power supply dead electricity
(1) prepared auto restart 1: because inlet wire 1 power supply dead electricity is examined with no pressure and has after pressure without stream, offside the 4th circuit breaker 4QF power supply through the first circuit breaker 1QF, the first circuit breaker 1QF tripping operation after time delay tT1.In the time that the first circuit breaker 1QF tripping operation control command has been sent 1QF tripping operation and check really tripping of the first circuit breaker 1QF, after the first circuit breaker 1QF tripping operation, 1TWJ is closed represents that 1QF is in trip position, and 1KKJ is state after closing a floodgate, thereby generation the first circuit breaker 1QF position is not corresponding, on inspection the first transformer with no pressure after, after the second circuit breaker 2QF combined floodgate charge circuit 2Tcd2 has charged, time delay tH2 starts closing pulse to a second circuit breaker 2QF closing circuit.Or second circuit breaker 2QF be open position originally, really tripping (becoming open position) of confirmation the first circuit breaker 1QF after the first circuit breaker 1QF tripping operation control command is sent, after the second circuit breaker 2QF combined floodgate charge circuit 2Tcd2 has charged, time delay tH2 starts closing pulse to a second circuit breaker 2QF closing circuit.
(2) prepared auto restart 1: if power supply dead electricity is caused by the first tranformer protection action; the electric discharge immediately due to the first tranformer protection action of the second circuit breaker 2QF charge circuit; the second circuit breaker 2QF closing circuit is blocked simultaneously, therefore the second circuit breaker 2QF can not close a floodgate.
(3) prepared auto restart 1: if power supply dead electricity causes because of the first circuit breaker 1QF jump, 1TWJ can be closed, and 1KKJ is still state after closing a floodgate, the same first circuit breaker 1QF position that produces is not corresponding, after the second circuit breaker 2QF combined floodgate charge circuit 2Tcd2 has charged, on inspection the first transformer with no pressure after, time delay tH2 starts closing pulse to a second circuit breaker 2QF closing circuit.
(4) if manually pull open the first circuit breaker 1QF, 1KKJ state after original combined floodgate becomes state after separating brake, and the position of the first circuit breaker 1QF is not corresponding is false, therefore prepared auto restart 1: the closing circuit that can not start the second circuit breaker 2QF.
2.2 inlet wire 2 power supply dead electricity
(1) prepared auto restart 1: because inlet wire 2 power supply dead electricity are examined with no pressure and have after pressure without stream, offside the first circuit breaker 1QF power supply through the 4th circuit breaker 4QF, the 4th circuit breaker 4QF tripping operation after time delay tT4.When the 4th circuit breaker 4QF circuit breaker trip control command has been sent 4QF tripping operation time and checked really tripping of the 4th circuit breaker 4QF, after the 4th circuit breaker 4QF tripping operation, 4TWJ is closed represents that 4QF is in trip position, and 4KKJ is state after closing a floodgate, thereby generation the 4th circuit breaker 4QF position is not corresponding, on inspection the second transformer with no pressure after, after the second circuit breaker 2QF combined floodgate charge circuit 2Tcd1 has charged, time delay tH2 starts closing pulse to a second circuit breaker 2QF closing circuit.Or second circuit breaker 2QF be open position originally, after sending, the 4th circuit breaker 4QF circuit breaker trip control command confirms really tripping (becoming open position) of 4QF, after the second circuit breaker 2QF combined floodgate charge circuit 2Tcd1 has charged, time delay tH2 starts closing pulse to a second circuit breaker 2QF closing circuit.
(2) prepared auto restart 1: if power supply dead electricity is caused by the 3rd tranformer protection action; because protection action locking has adopted blocking; the second circuit breaker 2QF combined floodgate charge circuit can not be discharged and be blocked, therefore the second circuit breaker 2QF still can move combined floodgate.If power supply dead electricity caused by the second tranformer protection action, because protection action locking has adopted blocking, the second circuit breaker 2QF combined floodgate charge circuit can be discharged and be blocked immediately, therefore the second circuit breaker 2QF can not move combined floodgate.
(3) prepared auto restart 1: if power supply dead electricity causes because of circuit breaker 4QF or 3QF jump, 4TWJ or 3TWJ can be closed, and 4KKJ or 3KKJ are still state after closing a floodgate, same generation 4QF or 3QF circuit breaker position are not corresponding, after the second circuit breaker 2QF combined floodgate charge circuit 2Tcd1 has charged, on inspection the second transformer with no pressure after, time delay tH2 starts closing pulse to a second circuit breaker 2QF closing circuit.
(4) if manually pull open circuit breaker 4QF or 3QF, 4KKJ or 3KKJ state after original combined floodgate becomes state after separating brake, and the position of circuit breaker 4QF or 3QF is not corresponding is false, therefore prepared auto restart 1: the closing circuit that can not start the second circuit breaker 2QF.
(iv), operational mode 4: circuit breaker 2QF, 3QF, 4QF operation, the first circuit breaker 1QF stand-by heat
1 preparatory stage
Prepared auto restart 1: circuit breaker 2QF, 4QF are combined floodgate running status, 2KK, the 4KK(of its corresponding operating circuit breaker or two-position relay 2KKJ, 4KKJ) remember for after closing a floodgate, the first circuit breaker 1QF is stand-by heat, the 1KK(of its corresponding operating circuit breaker or two-position relay 1KKJ) remember for after separating brake.Because 2KK, 4KK are state after closing a floodgate, so 4QF trip(ping) circuit is open, and circuit breaker 2QF, the locking of 4QF closing circuit; Open the first circuit breaker 1QF combined floodgate charge circuit 1Tcd1,1Tcd2 charge in the time that the first circuit breaker 1QF meets charge condition simultaneously, and thoroughly electric discharge immediately while not satisfying condition meets charging again after charge condition.
Prepared auto restart 2: circuit breaker 3QF, 4QF are combined floodgate running status, 3KK, the 4KK(of its corresponding operating circuit breaker or two-position relay 3KKJ, 4KKJ) remember for after closing a floodgate, the first circuit breaker 1QF is stand-by heat, the 1KK(of its corresponding operating circuit breaker or two-position relay 1KKJ) remember for after separating brake.Because 3KK, 4KK are state after closing a floodgate, so the 4th circuit breaker 4QF trip(ping) circuit is open, and circuit breaker 3QF, the locking of 4QF closing circuit; Open the first circuit breaker 1QF combined floodgate charge circuit 1Tcd3,1Tcd4 charge in the time that the first circuit breaker 1QF meets charge condition simultaneously, and thoroughly electric discharge immediately while not satisfying condition meets charging again after charge condition.
2 course of action
2.1 inlet wire 2 power supply dead electricity
(1) prepared auto restart 1: because inlet wire 2 power supply dead electricity are examined with no pressure and have after pressure without stream, offside the first circuit breaker 1QF power supply through the 4th circuit breaker 4QF, the 4th circuit breaker 4QF tripping operation after time delay tT4.In the time that the 4th circuit breaker 4QF tripping operation control command has been sent 4QF tripping operation and check really tripping of the 4th circuit breaker 4QF, after the 4th circuit breaker 4QF tripping operation, 4TWJ is closed represents that 4QF is in trip position, and 4KKJ is state after closing a floodgate, thereby generation the 4th circuit breaker 4QF position is not corresponding, on inspection the first transformer with no pressure after, after the first circuit breaker 1QF combined floodgate charge circuit 1Tcd1 has charged, time delay tH1 starts closing pulse to a first circuit breaker 1QF closing circuit.Or first circuit breaker 1QF be open position originally, really tripping (becoming open position) of confirmation the 4th circuit breaker 4QF after the 4th circuit breaker 4QF tripping operation control command is sent, after the first circuit breaker 1QF combined floodgate charge circuit 1Tcd1 has charged, time delay tH1 starts closing pulse to a first circuit breaker 1QF closing circuit.
Prepared auto restart 2: because inlet wire 2 power supply dead electricity are examined with no pressure and have after pressure without stream, offside the first circuit breaker 1QF power supply through the 4th circuit breaker 4QF, the 4th circuit breaker 4QF tripping operation after time delay tT4.In the time that the 4th circuit breaker 4QF tripping operation control command has been sent 4QF tripping operation and check really tripping of the 4th circuit breaker 4QF, after the 4th circuit breaker 4QF tripping operation, 4TWJ is closed represents that 4QF is in trip position, and 4KKJ is state after closing a floodgate, thereby generation the 4th circuit breaker 4QF position is not corresponding, on inspection the first transformer with no pressure after, after the first circuit breaker 1QF combined floodgate charge circuit 1Tcd3 has charged, time delay tH1 starts closing pulse to a first circuit breaker 1QF closing circuit.Or first circuit breaker 1QF be open position originally, really tripping (becoming open position) of confirmation the 4th circuit breaker 4QF after the 4th circuit breaker 4QF circuit breaker trip control command is sent, after the first circuit breaker 1QF combined floodgate charge circuit 1Tcd3 has charged, time delay tH1 starts closing pulse to a first circuit breaker 1QF closing circuit.
(2) prepared auto restart 1: if power supply dead electricity caused by the first transformer action, because protection action locking has adopted blocking, the first circuit breaker 1QF combined floodgate charge circuit can be discharged and be blocked, therefore the first circuit breaker 1QF can not move combined floodgate; If power supply dead electricity caused by the action of the second transformer or the 3rd tranformer protection, because protection action locking has adopted blocking, the first circuit breaker 1QF combined floodgate charge circuit can not be discharged and be blocked, therefore the first circuit breaker 1QF still can move combined floodgate.
Prepared auto restart 2: if power supply dead electricity is caused by the second tranformer protection or the action of the 3rd tranformer protection; because protection action locking has adopted blocking; the first circuit breaker 1QF combined floodgate charge circuit can not be discharged and be blocked, therefore the first circuit breaker 1QF still can move combined floodgate.
(3) prepared auto restart 1: if power supply dead electricity causes because of circuit breaker 4QF or 2QF jump, 4TWJ or 2TWJ can be closed, and 4KKJ or 2KKJ are still state after closing a floodgate, same generation 4QF or 2QF circuit breaker position are not corresponding, after the first circuit breaker 1QF combined floodgate charge circuit 1Tcd1 or 1Tcd2 have charged, on inspection the first transformer with no pressure after, time delay tH1 starts closing pulse to a first circuit breaker 1QF closing circuit.
Prepared auto restart 2: if power supply dead electricity causes because of circuit breaker 4QF or 3QF jump, 4TWJ or 3TWJ can be closed, and 4KKJ or 3KKJ are still state after closing a floodgate, same generation circuit breaker 4QF or 3QF position are not corresponding, after the first circuit breaker 1QF combined floodgate charge circuit 1Tcd3 or 1Tcd4 have charged, on inspection the first transformer with no pressure after, time delay tH1 starts closing pulse to a first circuit breaker 1QF closing circuit.
(4) if manually pull open circuit breaker 4QF or 2QF or 3QF, 4KKJ or 2KKJ or 3KKJ state after original combined floodgate becomes state after separating brake, the circuit breaker position of 4QF or 2QF or 3QF is not corresponding is false, therefore prepared auto restart 1: the closing circuit that can not start the first circuit breaker 1QF; Prepared auto restart 2: the closing circuit that can not start the first circuit breaker 1QF.
(v), operational mode 5: circuit breaker 1QF, 2QF operation, circuit breaker 3QF, 4QF stand-by heat
1 preparatory stage
Prepared auto restart 1: circuit breaker 1QF, 2QF are combined floodgate running status, 1KK, the 2KK(of its corresponding operating circuit breaker or two-position relay 1KKJ, 2KKJ) remember for after closing a floodgate, the 4th circuit breaker 4QF is stand-by heat, the 4KK(of its corresponding operating circuit breaker or two-position relay 4KKJ) remember for after separating brake.Because 1KK, 2KK are state after closing a floodgate, so the first circuit breaker 1QF trip(ping) circuit is open, and circuit breaker 1QF, the locking of 2QF closing circuit; Open the 4th circuit breaker 4QF combined floodgate charge circuit 4Tcd1,4Tcd2 charge in the time that the 4th circuit breaker 4QF meets charge condition simultaneously, and thoroughly electric discharge immediately while not satisfying condition meets charging again after charge condition.
2: the first circuit breaker 1QF of prepared auto restart are combined floodgate running status, the 1KK(of its corresponding operating circuit breaker or two-position relay 1KKJ) remember for after closing a floodgate, circuit breaker 3QF, 4QF are stand-by heat, 3KK, the 4KK(of its corresponding operating circuit breaker or two-position relay 3KKJ, 4KKJ) remember for after separating brake.Because 1KK is state after closing a floodgate, so the first circuit breaker 1QF trip(ping) circuit is open, and closing circuit locking; Open circuit breaker 3QF, 4QF combined floodgate charge circuit 3Tcd2 and 4Tcd3 charge in the time that circuit breaker 3QF, 4QF meet charge condition simultaneously, and thoroughly electric discharge immediately while not satisfying condition meets charging again after charge condition.
2 course of action
2.1 inlet wire 1 power supply dead electricity
(1) prepared auto restart 1: because inlet wire 1 power supply dead electricity is examined with no pressure and has after pressure without stream, offside the 4th circuit breaker 4QF power supply through the first circuit breaker 1QF, the first circuit breaker 1QF tripping operation after time delay tT1.In the time that the first circuit breaker 1QF tripping operation control command has been sent 1QF tripping operation and check really tripping of the first circuit breaker 1QF, after the first circuit breaker 1QF tripping operation, 1TWJ is closed represents that 1QF is in trip position, and 1KKJ is state after closing a floodgate, thereby generation the first circuit breaker 1QF position is not corresponding, on inspection the 3rd transformer with no pressure after, after the 4th circuit breaker 4QF combined floodgate charge circuit 4Tcd1 has charged, time delay tH4 starts closing pulse to the four circuit breaker 4QF closing circuits.Or the 4th circuit breaker 4QF be open position originally, really tripping (becoming open position) of confirmation the first circuit breaker 1QF after the first circuit breaker 1QF tripping operation control command is sent, after the 4th circuit breaker 4QF combined floodgate charge circuit 4Tcd1 has charged, time delay tH4 starts closing pulse to the four circuit breaker 4QF closing circuits.
Prepared auto restart 2: because inlet wire 1 power supply dead electricity is examined with no pressure and has after pressure without stream, offside the 4th circuit breaker 4QF power supply through the first circuit breaker 1QF, the first circuit breaker 1QF trips after time delay tH1.In the time that the first circuit breaker 1QF tripping operation control command has been sent 1QF tripping operation and check really tripping of the first circuit breaker 1QF, after the first circuit breaker 1QF tripping operation, 1TWJ is closed represents that 1QF is in trip position, and 1KKJ is state after closing a floodgate, thereby generation the first circuit breaker 1QF position is not corresponding, after checking that respectively the 3rd transformer is with no pressure, after checking that the second transformer is with no pressure, at circuit breaker 3QF, 4QF combined floodgate charge circuit 3Tcd2, after 4Tcd3 has charged, time delay tH3 starts closing pulse to the three circuit breaker 3QF closing circuits, time delay tH4 starts closing pulse to the four circuit breaker 4QF closing circuits.
(2) prepared auto restart 1: if power supply dead electricity is caused by the first tranformer protection or the action of the second tranformer protection; because protection action locking has adopted blocking; the 4th circuit breaker 4QF combined floodgate charge circuit can not be discharged and be blocked, therefore the 4th circuit breaker 4QF still can move combined floodgate.
Prepared auto restart 2: if power supply dead electricity caused by the first tranformer protection action, because protection action locking has adopted blocking, circuit breaker 3QF and 4QF combined floodgate charge circuit can not be discharged and be blocked, therefore circuit breaker 3QF and 4QF still can move combined floodgate.If power supply dead electricity caused by the second tranformer protection action, because protection action locking has adopted blocking, the 4th circuit breaker 4QF combined floodgate charge circuit can not be discharged and be blocked, therefore the 4th circuit breaker 4QF still can move combined floodgate; And circuit breaker 3QF combined floodgate charge circuit can be discharged and be blocked, therefore the 3rd circuit breaker 3QF can not move combined floodgate.
(3) prepared auto restart 1: if incoming power dead electricity causes because of circuit breaker 1QF or 2QF jump, 1TWJ or 2TWJ can be closed, and 1KKJ or 2KKJ are still state after closing a floodgate, same generation circuit breaker 1QF or 2QF position are not corresponding, after the 4th circuit breaker 4QF combined floodgate charge circuit 4Tcd1 or 4Tcd2 have charged, on inspection the 3rd transformer with no pressure after, time delay tH4 starts closing pulse to the four circuit breaker 4QF closing circuits
Prepared auto restart 2: if incoming power dead electricity causes because of the first circuit breaker 1QF jump, 1TWJ can be closed, and 1KKJ is still state after closing a floodgate, the same first circuit breaker 1QF position that produces is not corresponding, after the 3rd circuit breaker 3QF combined floodgate charge circuit 3Tcd2 has charged, on inspection the second transformer with no pressure after, time delay tH3 starts closing pulse to the three circuit breaker 3QF closing circuits; After the 4th circuit breaker 4QF combined floodgate charge circuit 4Tcd3 has charged, on inspection the 3rd transformer with no pressure after, time delay tH4 starts closing pulse to the four circuit breaker 4QF closing circuits.
(4) if manually pull open circuit breaker 1QF or 2QF, 1KKJ or 2KKJ state after original combined floodgate becomes state after separating brake, and the position of circuit breaker 1QF or 2QF is not corresponding is false, therefore prepared auto restart 1: the closing circuit that can not start the 4th circuit breaker 4QF; Therefore prepared auto restart 2: the closing circuit that can not start circuit breaker 3QF and 4QF.
(vi), operational mode 6: circuit breaker 1QF, 4QF operation, circuit breaker 2QF, 3QF stand-by heat
1 preparatory stage
Prepared auto restart 1: circuit breaker 1QF, 4QF are combined floodgate running status, 1KK, the 4KK(of its corresponding operating circuit breaker or two-position relay 1KKJ, 4KKJ) remember for after closing a floodgate, the second circuit breaker 2QF is stand-by heat, the 2KK(of its corresponding operating circuit breaker or two-position relay 2KKJ) remember for after separating brake.Because 1KK, 4KK are state after closing a floodgate, so circuit breaker 1QF, 4QF trip(ping) circuit are open, and closing circuit locking; Open the second circuit breaker 2QF combined floodgate charge circuit 2Tcd1,2Tcd2 charge in the time that the second circuit breaker 2QF meets charge condition simultaneously, and thoroughly electric discharge immediately while not satisfying condition meets charging again after charge condition.
Prepared auto restart 2: circuit breaker 1QF, 4QF are combined floodgate running status, 1KK, the 4KK(of its corresponding operating circuit breaker or two-position relay 1KKJ, 4KKJ) remember for after closing a floodgate, the 3rd circuit breaker 3QF is stand-by heat, the 3KK(of its corresponding operating circuit breaker or two-position relay 3KKJ) remember for after separating brake.Because 1KK, 4KK are state after closing a floodgate, so circuit breaker 1QF, 4QF trip(ping) circuit are open, and closing circuit locking; Open the 3rd circuit breaker 3QF combined floodgate charge circuit 3Tcd1,3Tcd2 charge in the time that the 3rd circuit breaker 3QF meets charge condition simultaneously, and thoroughly electric discharge immediately while not satisfying condition meets charging again after charge condition.
2 course of action
2.1 inlet wire 1 power supply dead electricity
(1) prepared auto restart 1: because inlet wire 1 power supply dead electricity is examined with no pressure and has after pressure without stream, offside the 4th circuit breaker 4QF power supply through the first circuit breaker 1QF, the first circuit breaker 1QF tripping operation after time delay tT1.In the time that the first circuit breaker 1QF tripping operation control command has been sent 1QF tripping operation and check really tripping of the first circuit breaker 1QF, after the first circuit breaker 1QF tripping operation, 1TWJ is closed represents that 1QF is in trip position, and 1KKJ is state after closing a floodgate, thereby generation the first circuit breaker 1QF position is not corresponding, on inspection the first transformer with no pressure after, after the second circuit breaker 2QF combined floodgate charge circuit 2Tcd2 has charged, time delay tH2 starts closing pulse to a second circuit breaker 2QF closing circuit.Or second circuit breaker 2QF be open position originally, really tripping (becoming open position) of confirmation the first circuit breaker 1QF after the first circuit breaker 1QF circuit breaker trip control command is sent, after the second circuit breaker 2QF combined floodgate charge circuit 2Tcd2 has charged, time delay tH2 starts closing pulse to a second circuit breaker 2QF closing circuit.
Prepared auto restart 2: because inlet wire 1 power supply dead electricity is examined with no pressure and has after pressure without stream, offside the 4th circuit breaker 4QF power supply through the first circuit breaker 1QF, the first circuit breaker 1QF tripping operation after time delay tT1.In the time that the first circuit breaker 1QF tripping operation control command has been sent 1QF tripping operation and check really tripping of the first circuit breaker 1QF, after the first circuit breaker 1QF tripping operation, 1TWJ is closed represents that 1QF is in trip position, and 1KKJ is state after closing a floodgate, thereby generation the first circuit breaker 1QF position is not corresponding, on inspection the second transformer with no pressure after, after the 3rd circuit breaker 3QF combined floodgate charge circuit 3Tcd2 has charged, time delay tH3 starts closing pulse to the three circuit breaker 3QF closing circuits.Or the 3rd circuit breaker 3QF be open position originally, really tripping (becoming open position) of confirmation the first circuit breaker 1QF after the first circuit breaker 1QF circuit breaker trip control command is sent, after the 3rd circuit breaker 3QF combined floodgate charge circuit 3Tcd2 has charged, time delay tH3 starts closing pulse to the three circuit breaker 3QF closing circuits.
(2) prepared auto restart 1: if power supply dead electricity is caused by the first tranformer protection action; the electric discharge immediately due to the first tranformer protection action of the second circuit breaker 2QF charge circuit; the second circuit breaker 2QF closing circuit is blocked simultaneously, therefore the second circuit breaker 2QF can not close a floodgate.
Prepared auto restart 2: if power supply dead electricity caused by the first tranformer protection action, because protection action locking has adopted blocking, the 3rd circuit breaker 3QF combined floodgate charge circuit can not be discharged and be blocked, therefore the 3rd circuit breaker 3QF still can move combined floodgate.
(3) prepared auto restart 1: if power supply dead electricity causes because of the first circuit breaker 1QF jump, 1TWJ can be closed, and 1KKJ is still state after closing a floodgate, the same first circuit breaker 1QF position that produces is not corresponding, after the second circuit breaker 2QF combined floodgate charge circuit 2Tcd2 has charged, on inspection the first transformer with no pressure after, time delay tH2 starts closing pulse to a second circuit breaker 2QF closing circuit
Prepared auto restart 2: if power supply dead electricity causes because of the first circuit breaker 1QF jump, 1TWJ can be closed, and 1KKJ is still state after closing a floodgate, the same first circuit breaker 1QF position that produces is not corresponding, after the 3rd circuit breaker 3QF combined floodgate charge circuit 3Tcd2 has charged, on inspection the second transformer with no pressure after, time delay tH3 starts closing pulse to the three circuit breaker 3QF closing circuits.
(4) if manually pull open the first circuit breaker 1QF, 1KKJ state after original combined floodgate becomes state after separating brake, and the position of the first circuit breaker 1QF is not corresponding is false, therefore prepared auto restart 1: the closing circuit that can not start the second circuit breaker 2QF; Therefore prepared auto restart 2: the closing circuit that can not start the 3rd circuit breaker 3QF.
2.2 inlet wire 2 power supply dead electricity
(1) prepared auto restart 1: because inlet wire 2 power supply dead electricity are examined with no pressure and have after pressure without stream, offside the first circuit breaker 1QF power supply through the 4th circuit breaker 4QF, the 4th circuit breaker 4QF tripping operation after time delay tT4.In the time that the 4th circuit breaker 4QF tripping operation control command has been sent 4QF tripping operation and check really tripping of the 4th circuit breaker 4QF, after the 4th circuit breaker 4QF tripping operation, 4TWJ is closed represents that 4QF is in trip position, and 4KKJ is state after closing a floodgate, thereby generation the 4th circuit breaker 4QF position is not corresponding, on inspection the second transformer with no pressure after, after the second circuit breaker 2QF combined floodgate charge circuit 2Tcd1 has charged, time delay tH2 starts closing pulse to a second circuit breaker 2QF closing circuit.Or second circuit breaker 2QF be open position originally, really tripping (becoming open position) of confirmation the 4th circuit breaker 4QF after the 4th circuit breaker 4QF circuit breaker trip control command is sent, after the second circuit breaker 2QF combined floodgate charge circuit 2Tcd1 has charged, time delay tH2 starts closing pulse to a second circuit breaker 2QF closing circuit.
Prepared auto restart 2: because inlet wire 2 power supply dead electricity are examined with no pressure and have after pressure without stream, offside the first circuit breaker 1QF power supply through the 4th circuit breaker 4QF, the 4th circuit breaker 4QF tripping operation after time delay tT4.In the time that the 4th circuit breaker 4QF tripping operation control command has been sent 4QF tripping operation and check really tripping of the 4th circuit breaker 4QF, after the 4th circuit breaker 4QF tripping operation, 4TWJ is closed represents that 4QF is in trip position, and 4KKJ is state after closing a floodgate, thereby generation the 4th circuit breaker 4QF position is not corresponding, on inspection the 3rd transformer with no pressure after, after the 3rd circuit breaker 3QF combined floodgate charge circuit 3Tcd1 has charged, time delay tH3 starts closing pulse to the three circuit breaker 3QF closing circuits.Or the 3rd circuit breaker 3QF be open position originally, really tripping (becoming open position) of confirmation the 4th circuit breaker 4QF after the 4th circuit breaker 4QF circuit breaker trip control command is sent, after the 3rd circuit breaker 3QF combined floodgate charge circuit 3Tcd1 has charged, time delay tH3 starts closing pulse to the three circuit breaker 3QF closing circuits.
(2) prepared auto restart 1: if power supply dead electricity is caused by the 3rd tranformer protection action; because protection action locking has adopted blocking; the second circuit breaker 2QF combined floodgate charge circuit can not be discharged and be blocked, therefore the second circuit breaker 2QF still can move combined floodgate.
Prepared auto restart 2: if power supply dead electricity is caused by the 3rd tranformer protection action; because protection action locking has adopted blocking; the electric discharge immediately due to the 3rd tranformer protection action of the 3rd circuit breaker 3QF charge circuit; the 3rd circuit breaker 3QF closing circuit is blocked simultaneously, therefore the 3rd circuit breaker 3QF can not close a floodgate.
(3) prepared auto restart 1: if power supply dead electricity causes because of the 4th circuit breaker 4QF jump, 4TWJ can be closed, and 4KKJ is still state after closing a floodgate, same the 4th circuit breaker 4QF position that produces is not corresponding, after the second circuit breaker 2QF combined floodgate charge circuit 2Tcd1 has charged, on inspection the second transformer with no pressure after, time delay tH2 starts closing pulse to a second circuit breaker 2QF closing circuit.
Prepared auto restart 2: if power supply dead electricity causes because of the 4th circuit breaker 4QF jump, 4TWJ can be closed, and 4KKJ is still state after closing a floodgate, same the 4th circuit breaker 4QF position that produces is not corresponding, after the 3rd circuit breaker 3QF combined floodgate charge circuit 3Tcd1 has charged, on inspection the 3rd transformer with no pressure after, time delay tH3 starts closing pulse to the three circuit breaker 3QF closing circuits.
(4) if manually pull open the 4th circuit breaker 4QF, 4KKJ state after original combined floodgate becomes state after separating brake, and the position of the 4th circuit breaker 4QF is not corresponding is false, therefore prepared auto restart 1: the closing circuit that can not start the second circuit breaker 2QF; Prepared auto restart 2: the closing circuit that can not start the 3rd circuit breaker 3QF.
(vii), operational mode 7: circuit breaker 3QF, 4QF operation, circuit breaker 1QF, 2QF stand-by heat
1 preparatory stage
1: the four circuit breaker 4QF of prepared auto restart are combined floodgate running status, the 4KK(of its corresponding operating circuit breaker or two-position relay 4KKJ) remember for after closing a floodgate, circuit breaker 1QF, 2QF are stand-by heat, 1KK, the 2KK(of its corresponding operating circuit breaker or two-position relay 1KKJ, 2KKJ) remember for after separating brake.Because 4KK is state after closing a floodgate, so the 4th circuit breaker 4QF trip(ping) circuit is open, and closing circuit locking; Open circuit breaker 1QF, 2QF combined floodgate charge circuit 1Tcd1,2Tcd1 charge in the time that 1QF, 2QF meet charge condition simultaneously, and thoroughly electric discharge immediately while not satisfying condition meets charging again after charge condition.
Prepared auto restart 2: circuit breaker 3QF, 4QF are combined floodgate running status, 3KK, the 4KK(of its corresponding operating circuit breaker or two-position relay 3KKJ, 4KKJ) remember for after closing a floodgate, the first circuit breaker 1QF is stand-by heat, the 1KK(of its corresponding operating circuit breaker or two-position relay 1KKJ) remember for after separating brake.Because 3KK, 4KK are state after closing a floodgate, so the 4th circuit breaker 4QF trip(ping) circuit is open, and circuit breaker 3QF, the locking of 4QF closing circuit; Open the first circuit breaker 1QF combined floodgate charge circuit 1Tcd3,1Tcd4 charge in the time that the first circuit breaker 1QF meets charge condition simultaneously, and thoroughly electric discharge immediately while not satisfying condition meets charging again after charge condition.
2 course of action
2.1 inlet wire 2 power supply dead electricity
(1) prepared auto restart 1: because inlet wire 2 power supply dead electricity are examined with no pressure and have after pressure without stream, offside the first circuit breaker 1QF power supply through the 4th circuit breaker 4QF, the 4th circuit breaker 4QF tripping operation after time delay tT4.In the time that the 4th circuit breaker 4QF tripping operation control command has been sent 4QF tripping operation and check really tripping of the 4th circuit breaker 4QF, after the 4th circuit breaker 4QF tripping operation, 4TWJ is closed represents that 4QF is in trip position, and 4KKJ is state after closing a floodgate, thereby generation the 4th circuit breaker 4QF position is not corresponding, after the first circuit breaker 1QF combined floodgate charge circuit 1Tcd1 has charged, on inspection the first transformer with no pressure after, time delay tH1 starts closing pulse to a first circuit breaker 1QF closing circuit; After the second circuit breaker 2QF combined floodgate charge circuit 2Tcd1 has charged, on inspection the second transformer with no pressure after, time delay tH2 start a closing pulse to 2QF closing circuit.Or first circuit breaker 1QF be open position originally, after sending, the 4th circuit breaker 4QF tripping operation control command confirms really tripping (becoming open position) of 4QF, after the first circuit breaker 1QF combined floodgate charge circuit 1Tcd1 has charged, time delay tH1 starts closing pulse to a first circuit breaker 1QF closing circuit.Or second circuit breaker 2QF be open position originally, really tripping (becoming open position) of confirmation the 4th circuit breaker 4QF after the 4th circuit breaker 4QF tripping operation control command is sent, after the second circuit breaker 2QF combined floodgate charge circuit 2Tcd1 has charged, time delay tH2 starts closing pulse to a second circuit breaker 2QF closing circuit.
Prepared auto restart 2: because inlet wire 2 power supply dead electricity are examined with no pressure and have after pressure without stream, offside the first circuit breaker 1QF power supply through the 4th circuit breaker 4QF, the 4th circuit breaker 4QF tripping operation after time delay tT4.In the time that the 4th circuit breaker 4QF tripping operation control command has been sent 4QF tripping operation and check really tripping of the 4th circuit breaker 4QF, after the 4th circuit breaker 4QF tripping operation, 4TWJ is closed represents that 4QF is in trip position, and 4KKJ is state after closing a floodgate, thereby generation the 4th circuit breaker 4QF position is not corresponding, on inspection the first transformer with no pressure after, after the first circuit breaker 1QF combined floodgate charge circuit 1Tcd3 has charged, time delay tH1 starts closing pulse to a first circuit breaker 1QF closing circuit.Or first circuit breaker 1QF be open position originally, really tripping (becoming open position) of confirmation the 4th circuit breaker 4QF after the 4th circuit breaker 4QF circuit breaker trip control command is sent, after the first circuit breaker 1QF combined floodgate charge circuit 1Tcd3 has charged, time delay tH1 starts closing pulse to a first circuit breaker 1QF closing circuit.
(2) prepared auto restart 1: if power supply dead electricity is caused by the 3rd tranformer protection action, because protection action locking has adopted blocking, circuit breaker 1QF and 2QF combined floodgate charge circuit can not be discharged and be blocked, therefore circuit breaker 1QF and 2QF still can move combined floodgate; If power supply dead electricity caused by the second tranformer protection action, because protection action locking has adopted blocking, the first circuit breaker 1QF combined floodgate charge circuit can not be discharged and be blocked, therefore the first circuit breaker 1QF still can move combined floodgate; Because protection action locking has adopted blocking, the second circuit breaker 2QF combined floodgate charge circuit can be discharged and be blocked, therefore the second circuit breaker 2QF can not move combined floodgate.
Prepared auto restart 2: if power supply dead electricity is caused by the 3rd tranformer protection or the action of the second tranformer protection; because protection action locking has adopted blocking; the first circuit breaker 1QF combined floodgate charge circuit can not be discharged and be blocked, therefore the first circuit breaker 1QF still can move combined floodgate.
(3) prepared auto restart 1: if power supply dead electricity causes because of the 4th circuit breaker 4QF jump, 4TWJ can be closed, and 4KKJ is still state after closing a floodgate, same the 4th circuit breaker 4QF position that produces is not corresponding, after the first circuit breaker 1QF combined floodgate charge circuit 1Tcd1 has charged, on inspection the first transformer with no pressure after, time delay tH1 starts closing pulse to a first circuit breaker 1QF closing circuit; After the second circuit breaker 2QF combined floodgate charge circuit 2Tcd1 has charged, on inspection the second transformer with no pressure after, time delay tH2 starts closing pulse to a second circuit breaker 2QF closing circuit.
Prepared auto restart 2: if power supply dead electricity causes because of circuit breaker 4QF or 3QF jump, 4TWJ or 3TWJ can be closed, and 4KKJ or 3KKJ are still state after closing a floodgate, the disconnected position of same generation road device 4QF or 3QF is not corresponding, after the first circuit breaker 1QF combined floodgate charge circuit 1Tcd3 or 1Tcd4 have charged, on inspection the first transformer with no pressure after, time delay tH1 starts closing pulse to a first circuit breaker 1QF closing circuit.
(4) if manually pull open circuit breaker 4QF or 3QF, 4KKJ or 3KKJ state after original combined floodgate becomes state after separating brake, and the circuit breaker position of 4QF or 3QF is not corresponding is false, therefore prepared auto restart 1: the closing circuit that can not start circuit breaker 1QF, 2QF; Prepared auto restart 2: the closing circuit that can not start the first circuit breaker 1QF.
(viii), 8: the first circuit breaker 1QF of operational mode operation, circuit breaker 2QF, 3QF, 4QF stand-by heat
1 preparatory stage
1: the first circuit breaker 1QF of prepared auto restart is combined floodgate running status, the 1KK(of its corresponding operating circuit breaker or two-position relay 1KKJ) remember for after closing a floodgate, circuit breaker 2QF, 4QF are stand-by heat, 2KK, the 4KK(of its corresponding operating circuit breaker or two-position relay 2KKJ, 4KKJ) remember for after separating brake.Because 1KK is state after closing a floodgate, so the first circuit breaker 1QF trip(ping) circuit is open, and closing circuit locking; Open circuit breaker 2QF, 4QF combined floodgate charge circuit 2Tcd2,4Tcd1 charge in the time that circuit breaker 2QF, 4QF meet charge condition simultaneously, and thoroughly electric discharge immediately while not satisfying condition meets charging again after charge condition.
2: the first circuit breaker 1QF of prepared auto restart are combined floodgate running status, the 1KK(of its corresponding operating circuit breaker or two-position relay 1KKJ) remember for after closing a floodgate, circuit breaker 3QF, 4QF are stand-by heat, 3KK, the 4KK(of its corresponding operating circuit breaker or two-position relay 3KKJ, 4KKJ) remember for after separating brake.Because 1KK is state after closing a floodgate, so the first circuit breaker 1QF trip(ping) circuit is open, and closing circuit locking; Open 3QF, 4QF combined floodgate charge circuit 3Tcd2,4Tcd3 charge in the time that circuit breaker 3QF, 4QF meet charge condition simultaneously, and thoroughly electric discharge immediately while not satisfying condition meets charging again after charge condition.
2 course of action
2.1 inlet wire 1 power supply dead electricity
(1) prepared auto restart 1: because inlet wire 1 power supply dead electricity is examined with no pressure and has after pressure without stream, offside the 4th circuit breaker 4QF power supply through the first circuit breaker 1QF, the first circuit breaker 1QF tripping operation after time delay tT1.In the time that the first circuit breaker 1QF tripping operation control command has been sent 1QF tripping operation and check really tripping of the first circuit breaker 1QF, after the first circuit breaker 1QF tripping operation, 1TWJ is closed represents that 1QF is in trip position, and 1KKJ is state after closing a floodgate, thereby generation the first circuit breaker 1QF position is not corresponding, on inspection the first transformer with no pressure after, after the second circuit breaker 2QF combined floodgate charge circuit 2Tcd2 has charged, time delay tH2 starts closing pulse to a second circuit breaker 2QF closing circuit; On inspection the 3rd transformer with no pressure after, after the 4th circuit breaker 4QF combined floodgate charge circuit 4Tcd1 has charged, time delay tH4 starts closing pulse to the four circuit breaker 4QF closing circuits.Or second circuit breaker 2QF be open position originally, really tripping (becoming open position) of confirmation the first circuit breaker 1QF after the first circuit breaker 1QF tripping operation control command is sent, after the second circuit breaker 2QF combined floodgate charge circuit 2Tcd2 has charged, time delay tH2 starts closing pulse to a second circuit breaker 2QF closing circuit.Or the 4th circuit breaker 4QF be open position originally, really tripping (becoming open position) of confirmation the first circuit breaker 1QF after the first circuit breaker 1QF tripping operation control command is sent, after the 4th circuit breaker 4QF combined floodgate charge circuit 4Tcd1 has charged, time delay tH4 starts closing pulse to the four circuit breaker 4QF closing circuits.
Prepared auto restart 2: because inlet wire 1 power supply dead electricity is examined with no pressure and has after pressure without stream, offside the 4th circuit breaker 4QF power supply through the first circuit breaker 1QF, the first circuit breaker 1QF tripping operation after time delay tT1.In the time that the first circuit breaker 1QF tripping operation control command has been sent 1QF tripping operation and check really tripping of the first circuit breaker 1QF, after the first circuit breaker 1QF tripping operation, 1TWJ is closed represents that 1QF is in trip position, and 1KKJ is state after closing a floodgate, thereby generation the first circuit breaker 1QF position is not corresponding, on inspection the second transformer with no pressure after, after 3QF combined floodgate charge circuit 3Tcd2 has charged, time delay tH3 starts closing pulse to the three circuit breaker 3QF closing circuits; On inspection the 3rd transformer with no pressure after, after the 4th circuit breaker 4QF combined floodgate charge circuit 4Tcd3 has charged, time delay tH4 starts closing pulse to the four circuit breaker 4QF closing circuits.Or the 3rd circuit breaker 3QF be open position originally, really tripping (becoming open position) of confirmation the first circuit breaker 1QF after the first circuit breaker 1QF circuit breaker trip control command is sent, after the 3rd circuit breaker 3QF combined floodgate charge circuit 3Tcd2 has charged, time delay tH3 starts closing pulse to the three circuit breaker 3QF closing circuits.Or the 4th circuit breaker 4QF be open position originally, really tripping (becoming open position) of confirmation the first circuit breaker 1QF after the first circuit breaker 1QF tripping operation control command is sent, after the 4th circuit breaker 4QF combined floodgate charge circuit 4Tcd3 has charged, time delay tH4 starts closing pulse to the four circuit breaker 4QF closing circuits.
(2) prepared auto restart 1: if power supply dead electricity is caused by the first tranformer protection action, the electric discharge immediately due to the first tranformer protection action of the second circuit breaker 2QF charge circuit, the second circuit breaker 2QF closing circuit is blocked simultaneously, therefore the second circuit breaker 2QF can not close a floodgate; And the 4th circuit breaker 4QF combined floodgate charge circuit can not be discharged and be blocked, therefore the 4th circuit breaker 4QF still can move combined floodgate.
Prepared auto restart 2: if power supply dead electricity caused by the first tranformer protection action, because protection action locking has adopted blocking, circuit breaker 3QF and 4QF combined floodgate charge circuit can not be discharged and be blocked, therefore circuit breaker 3QF and 4QF still can move combined floodgate.
(3) prepared auto restart 1: if power supply dead electricity causes because of the first circuit breaker 1QF jump, 1TWJ can be closed, and 1KKJ is still state after closing a floodgate, the same first circuit breaker 1QF position that produces is not corresponding, after the second circuit breaker 2QF combined floodgate charge circuit 2Tcd2 has charged, on inspection the first transformer with no pressure after, time delay tH2 starts closing pulse to a second circuit breaker 2QF closing circuit; After the 4th circuit breaker 4QF combined floodgate charge circuit 4Tcd1 has charged, on inspection the 3rd transformer with no pressure after, time delay tH4 starts closing pulse to the four circuit breaker 4QF closing circuits.
Prepared auto restart 2: if power supply dead electricity causes because of the first circuit breaker 1QF jump, 1TWJ can be closed, and 1KKJ is still state after closing a floodgate, the same first circuit breaker 1QF position that produces is not corresponding, after the 3rd circuit breaker 3QF combined floodgate charge circuit 3Tcd2 has charged, on inspection the second transformer with no pressure after, time delay tH3 starts closing pulse to the three circuit breaker 3QF closing circuits; After the 4th circuit breaker 4QF combined floodgate charge circuit 4Tcd3 has charged, on inspection the 3rd transformer with no pressure after, time delay tH4 starts closing pulse to the four circuit breaker 4QF closing circuits.
(4) if manually pull open the first circuit breaker 1QF, 1KKJ state after original combined floodgate becomes state after separating brake, and the position of the first circuit breaker 1QF is not corresponding is false, therefore prepared auto restart 1: the closing circuit that can not start circuit breaker 2QF, 4QF; Therefore prepared auto restart 2: the closing circuit that can not start circuit breaker 3QF, 4QF.
(ix), operational mode 9: the four circuit breaker 4QF operations, circuit breaker 2QF, 3QF, 1QF stand-by heat
1 preparatory stage
1: the four circuit breaker 4QF of prepared auto restart are combined floodgate running status, the 4KK(of its corresponding operating circuit breaker or two-position relay 4KKJ) remember for after closing a floodgate, circuit breaker 1QF, 2QF are stand-by heat, 1KK, the 2KK(of its corresponding operating circuit breaker or two-position relay 1KKJ, 2KKJ) remember for after separating brake.Because 4KK is state after closing a floodgate, so the 4th circuit breaker 4QF trip(ping) circuit is open, and closing circuit locking; Open circuit breaker 1QF, 2QF combined floodgate charge circuit 1Tcd1,2Tcd1 charge in the time that circuit breaker 1QF, 2QF meet charge condition simultaneously, and thoroughly electric discharge immediately while not satisfying condition meets charging again after charge condition.
2: the four circuit breaker 4QF of prepared auto restart are combined floodgate running status, the 4KK(of its corresponding operating circuit breaker or two-position relay 4KKJ) remember for after closing a floodgate, circuit breaker 1QF, 3QF are stand-by heat, 1KK, the 3KK(of its corresponding operating circuit breaker or two-position relay 1KKJ, 3KKJ) remember for after separating brake.Because 4KK is state after closing a floodgate, so the 4th circuit breaker 4QF trip(ping) circuit is open, and closing circuit locking; Open circuit breaker 1QF, 3QF combined floodgate charge circuit 1Tcd3,3Tcd1 charge in the time that circuit breaker 1QF, 3QF meet charge condition simultaneously, and thoroughly electric discharge immediately while not satisfying condition meets charging again after charge condition.
2 course of action
2.1 inlet wire 2 power supply dead electricity
(1) prepared auto restart 1: because inlet wire 2 power supply dead electricity are examined with no pressure and have after pressure without stream, offside the first circuit breaker 1QF power supply through the 4th circuit breaker 4QF, the 4th circuit breaker 4QF tripping operation after time delay tT4.In the time that the 4th circuit breaker 4QF tripping operation control command has been sent 4QF tripping operation and check really tripping of the 4th circuit breaker 4QF, after the 4th circuit breaker 4QF tripping operation, 4TWJ is closed represents that 4QF is in trip position, and 4KKJ is state after closing a floodgate, thereby generation the 4th circuit breaker 4QF position is not corresponding, on inspection the first transformer with no pressure after, after the first circuit breaker 1QF combined floodgate charge circuit 1Tcd1 has charged, time delay tH1 starts closing pulse to a first circuit breaker 1QF closing circuit; On inspection the second transformer with no pressure after, after the second circuit breaker 2QF combined floodgate charge circuit 2Tcd1 has charged, time delay tH2 starts closing pulse to a second circuit breaker 2QF closing circuit.Or first circuit breaker 1QF be open position originally, really tripping (becoming open position) of confirmation the 4th circuit breaker 4QF after the 4th circuit breaker 4QF circuit breaker trip control command is sent, after the first circuit breaker 1QF combined floodgate charge circuit 1Tcd1 has charged, time delay tH1 starts closing pulse to a first circuit breaker 1QF closing circuit.Or second circuit breaker 2QF be open position originally, really tripping (becoming open position) of confirmation the 4th circuit breaker 4QF after the 4th circuit breaker 4QF tripping operation control command is sent, after the second circuit breaker 2QF combined floodgate charge circuit 2Tcd1 has charged, time delay tH2 starts closing pulse to a second circuit breaker 2QF closing circuit.
Prepared auto restart 2: because inlet wire 2 power supply dead electricity are examined with no pressure and have after pressure without stream, offside the first circuit breaker 1QF power supply through the 4th circuit breaker 4QF, the 4th circuit breaker 4QF tripping operation after time delay tT4.In the time that the 4th circuit breaker 4QF tripping operation control command has been sent 4QF tripping operation and check really tripping of the 4th circuit breaker 4QF, after the 4th circuit breaker 4QF tripping operation, 4TWJ is closed represents that 4QF is in trip position, and 4KKJ is state after closing a floodgate, thereby generation the 4th circuit breaker 4QF position is not corresponding, on inspection the first transformer with no pressure after, after the first circuit breaker 1QF combined floodgate charge circuit 1Tcd3 has charged, time delay tH1 starts closing pulse to a first circuit breaker 1QF closing circuit; On inspection the 3rd transformer with no pressure after, after the 3rd circuit breaker 3QF combined floodgate charge circuit 3Tcd1 has charged, time delay tH3 starts closing pulse to the three circuit breaker 3QF closing circuits.Or first circuit breaker 1QF be open position originally, really tripping (becoming open position) of confirmation the 4th circuit breaker 4QF after the 4th circuit breaker 4QF tripping operation control command is sent, after the first circuit breaker 1QF combined floodgate charge circuit 1Tcd3 has charged, time delay tH1 starts closing pulse to a first circuit breaker 1QF closing circuit.Or the 3rd circuit breaker 3QF be open position originally, really tripping (becoming open position) of confirmation the 4th circuit breaker 4QF after the 4th circuit breaker 4QF tripping operation control command is sent, after the 3rd circuit breaker 3QF combined floodgate charge circuit 3Tcd1 has charged, time delay tH3 starts closing pulse to the three circuit breaker 3QF closing circuits.
(2) prepared auto restart 1: if power supply dead electricity is caused by the 3rd tranformer protection action; because protection action locking has adopted blocking; circuit breaker 1QF and 2QF combined floodgate charge circuit can not be discharged and be blocked, therefore circuit breaker 1QF and 2QF still can move combined floodgate.
Prepared auto restart 2: if power supply dead electricity is caused by the 3rd tranformer protection action, because protection action locking has adopted blocking, the electric discharge immediately due to the 3rd tranformer protection action of the 3rd circuit breaker 3QF charge circuit, the 3rd circuit breaker 3QF closing circuit is blocked simultaneously, therefore the 3rd circuit breaker 3QF can not close a floodgate; And the first circuit breaker 1QF combined floodgate charge circuit can not be discharged and be blocked, therefore the first circuit breaker 1QF still can move combined floodgate.
(3) prepared auto restart 1: if power supply dead electricity causes because of the 4th circuit breaker 4QF jump, 4TWJ can be closed, and 4KKJ is still state after closing a floodgate, same the 4th circuit breaker 4QF position that produces is not corresponding, after the first circuit breaker 1QF combined floodgate charge circuit 1Tcd1 has charged, on inspection the first transformer with no pressure after, time delay tH1 starts closing pulse to a first circuit breaker 1QF closing circuit; After the second circuit breaker 2QF combined floodgate charge circuit 2Tcd1 has charged, on inspection the second transformer with no pressure after, time delay tH2 starts closing pulse to a second circuit breaker 2QF closing circuit.
Prepared auto restart 2: if power supply dead electricity causes because of the 4th circuit breaker 4QF jump, 4TWJ can be closed, and 4KKJ is still state after closing a floodgate, same the 4th circuit breaker 4QF position that produces is not corresponding, after the first circuit breaker 1QF combined floodgate charge circuit 1Tcd3 has charged, on inspection the first transformer with no pressure after, time delay tH1 starts closing pulse to a first circuit breaker 1QF closing circuit; After the 3rd circuit breaker 3QF combined floodgate charge circuit 3Tcd1 has charged, on inspection the 3rd transformer with no pressure after, time delay tH3 starts closing pulse to the three circuit breaker 3QF closing circuits.
(4) if manually pull open the 4th circuit breaker 4QF, 4KKJ state after original combined floodgate becomes state after separating brake, and the position of the 4th circuit breaker 4QF is not corresponding is false, therefore prepared auto restart 1: the closing circuit that can not start circuit breaker 1QF, 2QF; Prepared auto restart 2: the closing circuit that can not start circuit breaker 1QF, 3QF.
(x), signal circuit
1, after each tripping operation exports with combined floodgate, send out immediately prepared auto restart actuating signal;
2,, after tranformer protection action, when locking prepared auto restart closing circuit, send out tranformer protection action locking prepared auto restart switching signal;
3, system do not occur extremely, prepared auto restart normal operation, voltage or current circuit occur abnormal, backup auto-activating device abnormal signal is sent out in time delay.
internal bridge prepared auto restart and sectionalized single busbar connection prepared auto restart specific embodiments
Internal bridge as shown in Figure 2, in the applied transmission and distribution networks of method of the present invention, include two-way power supply, on two-way power supply, be serially connected with respectively the first circuit breaker 1QF and the 4th circuit breaker 4QF, also connect respectively two transformers, i.e. the first transformer and the 3rd transformer or the second transformer, between two-way power supply, have the 3rd circuit breaker 3QF or the second circuit breaker 2QF, the line side of electric power incoming line and transformer side are all connected to voltage transformer.Single-trunk segmental wiring as shown in Figure 3, in the applied transmission and distribution networks of method of the present invention, include two-way electric power incoming line, on two-way electric power incoming line, be serially connected with respectively the first circuit breaker 1QF and the 4th circuit breaker 4QF, be connected to again the first bus and second or triple bus-bar, two buses also connect respectively two transformers (i.e. the first transformer and the second transformer or the 3rd transformer, lower same) or be connected with respectively load outlet, between two buses, there is section breaker (the second circuit breaker 2QF or the 3rd circuit breaker 3QF), on the line side of two-way electric power incoming line and two buses, be all connected to voltage transformer.
To have the first circuit breaker 1QF, the second circuit breaker 2QF, the 4th circuit breaker 4QF in internal bridge, the transformer connecting is that the first transformer and the 3rd transformer are example, " primary connection mode control word " FS1 put 1 and FS2 set to 0, and FS3 put 1 and FS4 set to 0, be prepared auto restart 1 logic, therefore the logical circuit whole lockings relevant with the 3rd circuit breaker 3QF logic with prepared auto restart 2.Wherein 1BCJ is the first tranformer protection, and 2BCJ, 3BCJ are the 3rd transformer; <1U2 is that the first transformer inspection is with no pressure, and <2U2 and <3U2 are that the 3rd transformer inspection is with no pressure.Providing the present invention is below applied to the embodiment of the internal bridge (single-trunk segmental wiring) that stand-by power supply automatically drops into (FS1 sets to 0 with FS2 and puts 1 when " primary connection mode control word ", and FS3 sets to 0 and puts 1 with FS4, while being prepared auto restart 2 logic, its logical AND prepared auto restart 1 is similar):
(i), operational mode 1: circuit breaker 1QF, 2QF operation, the 4th circuit breaker 4QF stand-by heat
1 preparatory stage
Circuit breaker 1QF, 2QF are combined floodgate running status, 1KK, the 2KK(of its corresponding operating circuit breaker or two-position relay 1KKJ, 2KKJ) remember for after closing a floodgate, the 4th circuit breaker 4QF is stand-by heat, the 4KK(of its corresponding operating circuit breaker or two-position relay 4KKJ) remember for after separating brake.Because 1KK, 2KK are state after closing a floodgate, so the first circuit breaker 1QF trip(ping) circuit is open, and circuit breaker 1QF, the locking of 2QF closing circuit; Open the 4th circuit breaker 4QF combined floodgate charge circuit 4Tcd1,4Tcd2 charge in the time that the 4th circuit breaker 4QF meets charge condition simultaneously, and thoroughly electric discharge immediately while not satisfying condition meets charging again after charge condition.
2 course of action
2.1 inlet wire 1 power supply dead electricity
(1) because inlet wire 1 power supply dead electricity is examined with no pressure and has after pressure without stream, offside the 4th circuit breaker 4QF power supply through the first circuit breaker 1QF, after time delay tT1, the first circuit breaker 1QF trips.In the time that the first circuit breaker 1QF tripping operation control command has been sent 1QF tripping operation and check really tripping of the first circuit breaker 1QF, after the first circuit breaker 1QF tripping operation, 1TWJ is closed represents that 1QF is in trip position, and 1KKJ is state after closing a floodgate, thereby generation the first circuit breaker 1QF position is not corresponding, on inspection the 3rd transformer with no pressure after, after the 4th circuit breaker 4QF combined floodgate charge circuit 4Tcd1 has charged, time delay tH4 starts closing pulse to the four circuit breaker 4QF closing circuits.Or the 4th circuit breaker 4QF be open position originally, really tripping (becoming open position) of confirmation the first circuit breaker 1QF after the first circuit breaker 1QF circuit breaker trip control command is sent, after the 4th circuit breaker 4QF combined floodgate charge circuit 4Tcd1 has charged, time delay tH4 starts closing pulse to the four circuit breaker 4QF closing circuits.
(2) if power supply dead electricity is moved and caused by the first tranformer protection, the 4th circuit breaker 4QF charge circuit is because main transformer protection action adopts blocking, and the 4th circuit breaker 4QF closing circuit is not blocked, therefore the 4th circuit breaker 4QF closes a floodgate.If power supply dead electricity is caused by the 3rd tranformer protection action, the electric discharge immediately due to the 3rd tranformer protection action of the 4th circuit breaker 4QF charge circuit, the 4th circuit breaker 4QF closing circuit is blocked simultaneously, therefore the 4th circuit breaker 4QF can not close a floodgate.
(3) if power supply dead electricity cause because of circuit breaker 1QF or 2QF jump, 1TWJ or 2TWJ can be closed, and 1KKJ or 2KKJ are still state after closing a floodgate, same generation 1QF or 2QF circuit breaker position are not corresponding, after the 4th circuit breaker 4QF combined floodgate charge circuit 4Tcd1 or 4Tcd2 have charged, on inspection the 3rd transformer with no pressure after, time delay tH4 starts closing pulse to the four circuit breaker 4QF closing circuits.
(5) if manually pull open circuit breaker 1QF or 2QF, 1KKJ or 2KKJ state after original combined floodgate becomes state after separating brake, and the position of circuit breaker 1QF or 2QF is not corresponding is false, therefore prepared auto restart can not start the closing circuit of the 4th circuit breaker 4QF.
(ii), operational mode 2: circuit breaker 2QF, 4QF operation, circuit breaker 1QF stand-by heat
1 preparatory stage
Prepared auto restart 1: circuit breaker 2QF, 4QF are combined floodgate running status, 2KK, the 4KK(of its corresponding operating circuit breaker or two-position relay 2KKJ, 4KKJ) remember for after closing a floodgate, the first circuit breaker 1QF is stand-by heat, the 1KK(of its corresponding operating circuit breaker or two-position relay 1KKJ) remember for after separating brake.Because 2KK, 4KK are state after closing a floodgate, so 4QF trip(ping) circuit is open, and circuit breaker 2QF, the locking of 4QF closing circuit; Open the first circuit breaker 1QF combined floodgate charge circuit 1Tcd1,1Tcd2 charge in the time that the first circuit breaker 1QF meets charge condition simultaneously, and thoroughly electric discharge immediately while not satisfying condition meets charging again after charge condition.
2 course of action
2.1 inlet wire 2 power supply dead electricity
(1) because inlet wire 2 power supply dead electricity are examined with no pressure and have after pressure without stream, offside the first circuit breaker 1QF power supply through the 4th circuit breaker 4QF, after time delay tT4, the 4th circuit breaker 4QF trips.In the time that the 4th circuit breaker 4QF tripping operation control command has been sent 4QF tripping operation and check really tripping of the 4th circuit breaker 4QF, after the 4th circuit breaker 4QF tripping operation, 4TWJ is closed represents that 4QF is in trip position, and 4KKJ is state after closing a floodgate, thereby generation the 4th circuit breaker 4QF position is not corresponding, on inspection the first transformer with no pressure after, after the first circuit breaker 1QF combined floodgate charge circuit 1Tcd1 has charged, time delay tH1 starts closing pulse to a first circuit breaker 1QF closing circuit.Or first circuit breaker 1QF be open position originally, really tripping (becoming open position) of confirmation the 4th circuit breaker 4QF after the 4th circuit breaker 4QF circuit breaker trip control command is sent, after the first circuit breaker 1QF combined floodgate charge circuit 1Tcd1 has charged, time delay tH1 starts closing pulse to a first circuit breaker 1QF closing circuit.
(2) if power supply dead electricity caused by the 3rd tranformer protection action, because protection action locking has adopted blocking, the first circuit breaker 1QF combined floodgate charge circuit can not be discharged and be blocked, therefore the first circuit breaker 1QF still can move combined floodgate.If power supply dead electricity is caused by the first tranformer protection action, the electric discharge immediately due to the first tranformer protection action of the first circuit breaker 1QF charge circuit, the first circuit breaker 1QF closing circuit is blocked simultaneously, therefore the first circuit breaker 1QF can not close a floodgate.
(3) if power supply dead electricity cause because of circuit breaker 4QF or 2QF jump, 4TWJ or 2TWJ can be closed, and 4KKJ or 2KKJ are still state after closing a floodgate, same generation 4QF or 2QF circuit breaker position are not corresponding, after the first circuit breaker 1QF combined floodgate charge circuit 1Tcd1 or 1Tcd2 have charged, on inspection the first transformer with no pressure after, time delay tH1 starts closing pulse to a first circuit breaker 1QF closing circuit.
(4) if manually pull open circuit breaker 4QF or 2QF, 4KKJ or 2KKJ state after original combined floodgate becomes state after separating brake, and the circuit breaker position of 4QF or 2QF is not corresponding is false, therefore prepared auto restart can not start the closing circuit of the first circuit breaker 1QF.
(iii), operational mode 3: circuit breaker 1QF, 4QF operation, the second circuit breaker 2QF stand-by heat
1 preparatory stage
Circuit breaker 1QF, 4QF are combined floodgate running status, 1KK, the 4KK(of its corresponding operating circuit breaker or two-position relay 1KKJ, 4KKJ) remember for after closing a floodgate, the second circuit breaker 2QF is stand-by heat, the 2KK(of its corresponding operating circuit breaker or two-position relay 2KKJ) remember for after separating brake.Because 1KK, 4KK are state after closing a floodgate, so circuit breaker 1QF, 4QF trip(ping) circuit are open, and closing circuit locking; Open the second circuit breaker 2QF combined floodgate charge circuit 2Tcd1,2Tcd2 charge in the time that the second circuit breaker 2QF meets charge condition simultaneously, and thoroughly electric discharge immediately while not satisfying condition meets charging again after charge condition.
2 course of action
2.1 inlet wire 1 power supply dead electricity
(1) because inlet wire 1 power supply dead electricity is examined with no pressure and has after pressure without stream, offside the 4th circuit breaker 4QF power supply through the first circuit breaker 1QF, after time delay tT1, the first circuit breaker 1QF trips.When the first circuit breaker 1QF circuit breaker trip control command has been sent 1QF tripping operation time and checked really tripping of the first circuit breaker 1QF, after the first circuit breaker 1QF tripping operation, 1TWJ is closed represents that 1QF is in trip position, and 1KKJ is state after closing a floodgate, thereby generation the first circuit breaker 1QF position is not corresponding, on inspection the first transformer with no pressure after, after the second circuit breaker 2QF combined floodgate charge circuit 2Tcd2 has charged, time delay tH2 starts closing pulse to a second circuit breaker 2QF closing circuit.Or second circuit breaker 2QF be open position originally, after sending, the first circuit breaker 1QF tripping operation control command confirms really tripping (becoming open position) of 1QF, after the second circuit breaker 2QF combined floodgate charge circuit 2Tcd2 has charged, time delay tH2 starts closing pulse to a second circuit breaker 2QF closing circuit.
(2) if power supply dead electricity is moved and caused by the first tranformer protection, the second circuit breaker 2QF charge circuit discharges immediately due to the first tranformer protection action, and the second circuit breaker 2QF closing circuit is blocked simultaneously, therefore the second circuit breaker 2QF can not close a floodgate.
(3) if power supply dead electricity cause because of the first circuit breaker 1QF jump, 1TWJ can be closed, and 1KKJ is still state after closing a floodgate, the same first circuit breaker 1QF position that produces is not corresponding, after the second circuit breaker 2QF combined floodgate charge circuit 2Tcd2 has charged, on inspection the first transformer with no pressure after, time delay tH2 starts closing pulse to a second circuit breaker 2QF closing circuit
(4) if manually pull open the first circuit breaker 1QF, 1KKJ state after original combined floodgate becomes state after separating brake, and the position of the first circuit breaker 1QF is not corresponding is false, therefore prepared auto restart can not start the closing circuit of the second circuit breaker 2QF.
2.2 inlet wire 2 power supply dead electricity
(1) because inlet wire 2 power supply dead electricity are examined with no pressure and have after pressure without stream, offside the first circuit breaker 1QF power supply through the 4th circuit breaker 4QF, after time delay tT4, the 4th circuit breaker 4QF trips.In the time that the 4th circuit breaker 4QF tripping operation control command has been sent 4QF tripping operation and check really tripping of the 4th circuit breaker 4QF, after the 4th circuit breaker 4QF tripping operation, 4TWJ is closed represents that 4QF is in trip position, and 4KKJ is state after closing a floodgate, thereby generation the 4th circuit breaker 4QF position is not corresponding, on inspection the 3rd transformer with no pressure after, after the second circuit breaker 2QF combined floodgate charge circuit 2Tcd1 has charged, time delay tH2 starts closing pulse to a second circuit breaker 2QF closing circuit.Or second circuit breaker 2QF be open position originally, really tripping (becoming open position) of confirmation the 4th circuit breaker 4QF after the 4th circuit breaker 4QF circuit breaker trip control command is sent, after the second circuit breaker 2QF combined floodgate charge circuit 2Tcd1 has charged, time delay tH2 starts closing pulse to a second circuit breaker 2QF closing circuit.
(2) if power supply dead electricity caused by the 3rd tranformer protection action, because protection action locking has adopted blocking, the second circuit breaker 2QF combined floodgate charge circuit can be discharged and be blocked, therefore the second circuit breaker 2QF can not move combined floodgate.
(3) if power supply dead electricity cause because of the 4th circuit breaker 4QF jump, 4TWJ can be closed, and 4KKJ is still state after closing a floodgate, same the 4th circuit breaker 4QF position that produces is not corresponding, after the second circuit breaker 2QF combined floodgate charge circuit 2Tcd1 has charged, on inspection the 3rd transformer with no pressure after, time delay tH2 starts closing pulse to a second circuit breaker 2QF closing circuit.
(4) if manually pull open the 4th circuit breaker 4QF, 4KKJ state after original combined floodgate becomes state after separating brake, and the position of the 4th circuit breaker 4QF is not corresponding is false, therefore prepared auto restart can not start the closing circuit of the second circuit breaker 2QF.
(iv), 4: the first circuit breaker 1QF of operational mode operation, circuit breaker 2QF, 4QF stand-by heat
1 preparatory stage
The first circuit breaker 1QF is combined floodgate running status, the 1KK(of its corresponding operating circuit breaker or two-position relay 1KKJ) remember for after closing a floodgate, circuit breaker 2QF, 4QF are stand-by heat, 2KK, the 4KK(of its corresponding operating circuit breaker or two-position relay 2KKJ, 4KKJ) remember for after separating brake.Because 1KK is state after closing a floodgate, so the first circuit breaker 1QF trip(ping) circuit is open, and closing circuit locking; Open circuit breaker 2QF, 4QF combined floodgate charge circuit 2Tcd2,4Tcd1 charge in the time that circuit breaker 2QF, 4QF meet charge condition simultaneously, and thoroughly electric discharge immediately while not satisfying condition meets charging again after charge condition.
2 course of action
2.1 inlet wire 1 power supply dead electricity
(1) because inlet wire 1 power supply dead electricity is examined with no pressure and has after pressure without stream, offside the 4th circuit breaker 4QF power supply through the first circuit breaker 1QF, after time delay tT1, the first circuit breaker 1QF trips.In the time that the first circuit breaker 1QF tripping operation control command has been sent 1QF tripping operation and check really tripping of the first circuit breaker 1QF, after the first circuit breaker 1QF tripping operation, 1TWJ is closed represents that 1QF is in trip position, and 1KKJ is state after closing a floodgate, thereby generation the first circuit breaker 1QF position is not corresponding, the first transformer is with no pressure on inspection, after the second circuit breaker 2QF combined floodgate charge circuit 2Tcd2 has charged, time delay tH2 starts a closing pulse to 2QF closing circuit; The 3rd transformer is with no pressure on inspection, and after the 4th circuit breaker 4QF combined floodgate charge circuit 4Tcd1 has charged, time delay tH4 starts closing pulse to the four circuit breaker 4QF closing circuits.Or the 4th circuit breaker 4QF be open position originally, really tripping (becoming open position) of confirmation the first circuit breaker 1QF after the first circuit breaker 1QF tripping operation control command is sent, after the 4th circuit breaker 4QF combined floodgate charge circuit 4Tcd1 has charged, time delay tH4 starts closing pulse to the four circuit breaker 4QF closing circuits.Or second circuit breaker 2QF be open position originally, really tripping (becoming open position) of confirmation the first circuit breaker 1QF after the first circuit breaker 1QF circuit breaker trip control command is sent, after the second circuit breaker 2QF combined floodgate charge circuit 2Tcd2 has charged, time delay tH2 starts closing pulse to a second circuit breaker 2QF closing circuit.
(2) if power supply dead electricity is moved and caused by the first tranformer protection, the second circuit breaker 2QF charge circuit discharges immediately due to the first tranformer protection action, and the second circuit breaker 2QF closing circuit is blocked simultaneously, therefore the second circuit breaker 2QF can not close a floodgate; And the 4th circuit breaker 4QF combined floodgate charge circuit can not be discharged and be blocked, therefore the 4th circuit breaker 4QF still can move combined floodgate.
(3) if power supply dead electricity cause because of the first circuit breaker 1QF jump, 1TWJ can be closed, and 1KKJ is still state after closing a floodgate, the same first circuit breaker 1QF position that produces is not corresponding, after the second circuit breaker 2QF combined floodgate charge circuit 2Tcd2 has charged, on inspection the first transformer with no pressure after, time delay tH2 starts closing pulse to a second circuit breaker 2QF closing circuit; After the 4th circuit breaker 4QF combined floodgate charge circuit 4Tcd1 has charged, on inspection the 3rd transformer with no pressure after, time delay tH4 starts closing pulse to the four circuit breaker 4QF closing circuits.
(4) if manually pull open the first circuit breaker 1QF, 1KKJ state after original combined floodgate becomes state after separating brake, and the position of the first circuit breaker 1QF is not corresponding is false, therefore prepared auto restart can not start the closing circuit of circuit breaker 2QF, 4QF.
(v), operational mode 5: the four circuit breaker 4QF operations, circuit breaker 1QF, 2QF stand-by heat
1 preparatory stage
The 4th circuit breaker 4QF is combined floodgate running status, the 4KK(of its corresponding operating circuit breaker or two-position relay 4KKJ) remember for after closing a floodgate, circuit breaker 1QF, 2QF are stand-by heat, 1KK, the 2KK(of its corresponding operating circuit breaker or two-position relay 1KKJ, 2KKJ) remember for after separating brake.Because 4KK is state after closing a floodgate, so the 4th circuit breaker 4QF trip(ping) circuit is open, and closing circuit locking; Open circuit breaker 1QF, 2QF combined floodgate charge circuit 1Tcd1,2Tcd1 charge in the time that the 4th circuit breaker 1QF, 2QF meet charge condition simultaneously, and thoroughly electric discharge immediately while not satisfying condition meets charging again after charge condition.
2 course of action
2.1 inlet wire 2 power supply dead electricity
(1) because inlet wire 2 power supply dead electricity are examined with no pressure and have after pressure without stream, offside the first circuit breaker 1QF power supply through the 4th circuit breaker 4QF, after time delay tT4, the 4th circuit breaker 4QF trips.In the time that the 4th circuit breaker 4QF tripping operation control command has been sent 4QF tripping operation and check really tripping of the 4th circuit breaker 4QF, after the 4th circuit breaker 4QF tripping operation, 4TWJ is closed represents that 4QF is in trip position, and 4KKJ is state after closing a floodgate, thereby generation the 4th circuit breaker 4QF position is not corresponding, the first transformer is with no pressure on inspection, after the first circuit breaker 1QF combined floodgate charge circuit 1Tcd1 has charged, time delay tH1 starts closing pulse to a first circuit breaker 1QF closing circuit; The 3rd transformer transformer is with no pressure on inspection, and after the second circuit breaker 2QF combined floodgate charge circuit 2Tcd1 has charged, time delay tH2 starts closing pulse to a second circuit breaker 2QF closing circuit.Or first circuit breaker 1QF be open position originally, really tripping (becoming open position) of confirmation the 4th circuit breaker 4QF after the 4th circuit breaker 4QF tripping operation control command is sent, after the first circuit breaker 1QF combined floodgate charge circuit 1Tcd1 has charged, time delay tH1 starts closing pulse to a first circuit breaker 1QF closing circuit.Or second circuit breaker 2QF be open position originally, really tripping (becoming open position) of confirmation the 4th circuit breaker 4QF after the 4th circuit breaker 4QF tripping operation control command is sent, after the second circuit breaker 2QF combined floodgate charge circuit 2Tcd1 has charged, time delay tH2 starts closing pulse to a second circuit breaker 2QF closing circuit.
(2) if power supply dead electricity caused by the 3rd tranformer protection action, because protection action locking has adopted blocking, the first circuit breaker 1QF combined floodgate charge circuit can not be discharged and be blocked, therefore the first circuit breaker 1QF still can move combined floodgate; And the second circuit breaker 2QF combined floodgate charge circuit can be discharged and be blocked, therefore the second circuit breaker 2QF can not move combined floodgate.
(3) if power supply dead electricity cause because of the 4th circuit breaker 4QF jump, 4TWJ can be closed, and 4KKJ is still state after closing a floodgate, same the 4th circuit breaker 4QF position that produces is not corresponding, after the first circuit breaker 1QF combined floodgate charge circuit 1Tcd1 has charged, on inspection the first transformer with no pressure after, time delay tH1 start a closing pulse to 1QF closing circuit; After the second circuit breaker 2QF combined floodgate charge circuit 2Tcd1 has charged, on inspection the 3rd transformer with no pressure after, time delay tH2 starts closing pulse to a second circuit breaker 2QF closing circuit.
(4) if manually pull open the 4th circuit breaker 4QF, 4KKJ state after original combined floodgate becomes state after separating brake, and the position of the 4th circuit breaker 4QF is not corresponding is false, therefore prepared auto restart can not start the closing circuit of circuit breaker 1QF, 2QF.
(vi), signal circuit
1, after each tripping operation exports with combined floodgate, send out immediately prepared auto restart actuating signal;
2,, after tranformer protection action, when locking prepared auto restart closing circuit, send out tranformer protection action locking prepared auto restart switching signal;
3, system do not occur extremely, prepared auto restart normal operation, voltage or current circuit occur abnormal, backup auto-activating device abnormal signal is sent out in time delay.
duplicate supply single bus scheme prepared auto restart specific embodiments
As shown in Figure 4, in the applied transmission and distribution networks of method of the present invention, include two-way electric power incoming line, on two-way electric power incoming line, be serially connected with respectively the first circuit breaker 1QF and the 4th circuit breaker 4QF, be connected to again on bus, two buses also connect respectively two main transformers, i.e. the first main transformer and the 3rd main transformer, or be connected with respectively load outlet, on the line side of two-way electric power incoming line and bus, be all connected to voltage transformer." primary connection mode control word " FS1 put 1 and FS2 set to 0, and FS3 sets to 0 and sets to 0 with FS4, be that (or FS1 sets to 0 with FS2 and sets to 0 prepared auto restart 1 logic, and FS3 put 1 and FS4 set to 0, be prepared auto restart 2 logics), 1BCJ, 2BCJ, 3BCJ are that bus protection or 1BCJ are that inlet wire 1 is protected, 3BCJ is that inlet wire 2 is protected; The first transformer inspection is with no pressure, the second transformer inspection is with no pressure and the inspection of the 3rd transformer is with no pressure examines with no pressure for bus.Because FS1 put 1 and FS2 set to 0, and FS3 sets to 0 and sets to 0 with FS4, be that (or FS1 sets to 0 with FS2 and sets to 0 prepared auto restart 1 logic, and FS3 put 1 and FS4 set to 0, be prepared auto restart 2 logics), thus with prepared auto restart 2 logics and the second circuit breaker 2QF(or with prepared auto restart 1 logic and the 3rd circuit breaker 3QF) relevant whole lockings of logical circuit and interrelated logic loop thereof.Provide the inventive method below and be applied to the stand-by power supply embodiment of the single bus scheme form of input (taking prepared auto restart 1 logic as example, prepared auto restart 2 logic class seemingly) automatically.
(i), operational mode 1
1, operational mode circuit breaker 1QF operation in 1: the first, the 4th circuit breaker 4QF stand-by heat
1 preparatory stage
The first circuit breaker 1QF is combined floodgate running status, the 1KK(of its corresponding operating circuit breaker or two-position relay 1KKJ) remember for after closing a floodgate, the 4th circuit breaker 4QF is stand-by heat, the 4KK(of its corresponding operating circuit breaker or two-position relay 4KKJ) remember for after separating brake.Because 1KK is state after closing a floodgate, so the first circuit breaker 1QF trip(ping) circuit is open, and closing circuit locking; Open the 4th circuit breaker 4QF combined floodgate charge circuit 4Tcd1 charges in the time that the 4th circuit breaker 4QF meets charge condition simultaneously, and thoroughly electric discharge immediately while not satisfying condition meets charging again after charge condition.
2 course of action
2.1 inlet wire 1 power supply dead electricity
(1) because inlet wire 1 power supply dead electricity is examined with no pressure and has after pressure without stream, offside the 4th circuit breaker 4QF power supply through the first circuit breaker 1QF, after time delay tT1, the first circuit breaker 1QF trips.In the time that the first circuit breaker 1QF tripping operation control command has been sent 1QF tripping operation and check really tripping of the first circuit breaker 1QF, after the first circuit breaker 1QF tripping operation, 1TWJ is closed represents that 1QF is in trip position, and 1KKJ is state after closing a floodgate, thereby generation the first circuit breaker 1QF position is not corresponding, on inspection bus with no pressure after, after the 4th circuit breaker 4QF combined floodgate charge circuit 4Tcd1 has charged, time delay tH4 starts closing pulse to the four circuit breaker 4QF closing circuits.Or the 4th circuit breaker 4QF be open position originally, really tripping (becoming open position) of confirmation the first circuit breaker 1QF after the first circuit breaker 1QF tripping operation control command is sent, after the 4th circuit breaker 4QF combined floodgate charge circuit 4Tcd1 has charged, time delay tH4 starts closing pulse to the four circuit breaker 4QF closing circuits.
(2) if power supply dead electricity protects action to cause by bus protection or inlet wire 1, the electric discharge immediately due to protection action of the 4th circuit breaker 4QF charge circuit, the 4th circuit breaker 4QF closing circuit is blocked simultaneously, therefore the 4th circuit breaker 4QF can not close a floodgate.
(3) if power supply dead electricity cause because of the first circuit breaker 1QF jump, 1TWJ can be closed, and 1KKJ is still state after closing a floodgate, the same first circuit breaker 1QF position that produces is not corresponding, after the 4th circuit breaker 4QF combined floodgate charge circuit 4Tcd1 has charged, on inspection bus with no pressure after, time delay tH4 starts closing pulse to the four circuit breaker 4QF closing circuits.
(4) if manually pull open the first circuit breaker 1QF, 1KKJ state after original combined floodgate becomes state after separating brake, and the position of the first circuit breaker 1QF is not corresponding is false, therefore prepared auto restart can not start the closing circuit of the 4th circuit breaker 4QF.
(ii), operational mode 2: the four circuit breaker 4QF operations, the first circuit breaker 1QF stand-by heat
The 4th circuit breaker 4QF is combined floodgate running status, the 4KK(of its corresponding operating circuit breaker or two-position relay 4KKJ) remember for after closing a floodgate, the first circuit breaker 1QF is stand-by heat, the 1KK(of its corresponding operating circuit breaker or two-position relay 1KKJ) remember for after separating brake.Because 4KK is state after closing a floodgate, so the 4th circuit breaker 4QF trip(ping) circuit is open, and closing circuit locking; Open the first circuit breaker 1QF combined floodgate charge circuit 1Tcd1 charges in the time that the first circuit breaker 1QF meets charge condition simultaneously, and thoroughly electric discharge immediately while not satisfying condition meets charging again after charge condition.
2 course of action
2.1 inlet wire 2 power supply dead electricity
(1) because inlet wire 2 power supply dead electricity are examined with no pressure and have after pressure without stream, offside the first circuit breaker 1QF power supply through the 4th circuit breaker 4QF, after time delay tT4, the 4th circuit breaker 4QF trips.In the time that the 4th circuit breaker 4QF tripping operation control command has been sent 4QF tripping operation and check really tripping of the 4th circuit breaker 4QF, after the 4th circuit breaker 4QF tripping operation, 4TWJ is closed represents that 4QF is in trip position, and 4KKJ is state after closing a floodgate, thereby generation the 4th circuit breaker 4QF position is not corresponding, on inspection bus with no pressure after, after the first circuit breaker 1QF combined floodgate charge circuit 1Tcd1 has charged, time delay tH1 starts closing pulse to a first circuit breaker 1QF closing circuit.Or first circuit breaker 1QF be open position originally, really tripping (becoming open position) of confirmation the 4th circuit breaker 4QF after the 4th circuit breaker 4QF tripping operation control command is sent, after the first circuit breaker 1QF combined floodgate charge circuit 1Tcd1 has charged, time delay tH1 starts closing pulse to a first circuit breaker 1QF closing circuit.
(2) if power supply dead electricity protects action to cause by bus protection or inlet wire 2, the electric discharge immediately due to protection action of the first circuit breaker 1QF charge circuit, the first circuit breaker 1QF closing circuit is blocked simultaneously, therefore the first circuit breaker 1QF can not close a floodgate.
(3) if power supply dead electricity cause because of the 4th circuit breaker 4QF jump, 4TWJ can be closed, and 4KKJ is still state after closing a floodgate, same the 4th circuit breaker 4QF position that produces is not corresponding, after the first circuit breaker 1QF combined floodgate charge circuit 1Tcd1 has charged, on inspection bus with no pressure after, time delay tH1 starts closing pulse to a first circuit breaker 1QF closing circuit.
(4) if manually pull open the 4th circuit breaker 4QF, 4KKJ state after original combined floodgate becomes state after separating brake, and the position of the 4th circuit breaker 4QF is not corresponding is false, therefore prepared auto restart can not start the closing circuit of the first circuit breaker 1QF.
(iii), signal circuit
1, after each tripping operation exports with combined floodgate, send out immediately prepared auto restart actuating signal;
2,, after bus protection action, when locking prepared auto restart closing circuit, send out bus protection action locking prepared auto restart switching signal;
3, system do not occur extremely, prepared auto restart normal operation, voltage or current circuit occur abnormal, backup auto-activating device abnormal signal is sent out in time delay.
Claims (1)
1. the decoupling control method of a multifunctional microcomputer control prepared auto restart, it is characterized in that: it comprises the control method of the control method, internal bridge or the single-trunk segmental wiring that expand internal bridge, these three kinds of basic control methods of control method of single bus scheme, wherein:
The control method of described expansion internal bridge prepared auto restart is:
It is two internal bridges that standard is expanded to internal bridge decoupling zero, form first internal bridge and form second internal bridge by the first circuit breaker 1QF, the 3rd circuit breaker 3QF and the 4th circuit breaker 4QF by the first circuit breaker 1QF, the second circuit breaker 2QF and the 4th circuit breaker 4QF, formed the prepared auto restart logic of a complete expansion internal bridge by the control logic circuit acting in conjunction of these two internal bridges prepared auto restart separately; Wherein first internal bridge, the control logic circuit of its prepared auto restart is defined as prepared auto restart 1; Second internal bridge, the control logic circuit of its prepared auto restart is defined as prepared auto restart 2;
In the control logic circuit of above-mentioned prepared auto restart, primary connection mode control word is defined: definition prepared auto restart 1 logic stop and start control word is FS1, puts this logic of 1 expression and enables, and sets to 0 and represents this logical disablement; Definition prepared auto restart logic 2 stop and start control words are FS2, put this logic of 1 expression and enable, and set to 0 and represent this logical disablement; Defining the logical circuit stop and start control word relevant with the second circuit breaker 2QF is FS3, puts this logic of 1 expression and enables, and sets to 0 and represents this logical disablement; Defining the logical circuit stop and start control word relevant with the 3rd circuit breaker 3QF is FS4, puts this logic of 1 expression and enables, and sets to 0 and represents this logical disablement; Primary connection mode is that while expanding internal bridge, above-mentioned control word FS1 and FS2 put 1, and FS3 and FS4 put 1;
The tripping operation control and the combined floodgate control method that expand internal bridge prepared auto restart respective circuit breakers are:
A. the tripping operation control of the first circuit breaker 1QF
Prepared auto restart 1 or prepared auto restart 2: when the first circuit breaker 1QF source current 1I1 is less than trip inspection no flow setpoint, the first circuit breaker 1QF supply voltage 1U1 is less than trip inspection definite value with no pressure, the 4th circuit breaker 4QF supply voltage 4U1 is greater than trip inspection compression set value, trip inspection has pressure-controlled word KG1 to put 1 and the first circuit breaker 1QF when manually controlling the two-position relay 1KKJ of circuit breaker 1KK or its deciliter state these conditions of position meeting after closing a floodgate simultaneously, prepared auto restart 1 logic stop and start put 1 with control word FS1 or prepared auto restart 2 logic stop and start control word FS2, through certain time delay tT1, to the first circuit breaker 1QF tripping operation control loop output pulse control signal, make the first circuit breaker 1QF tripping operation, export in-put of spare power supply tripping operation actuating signal simultaneously,
B. the tripping operation control of the 4th circuit breaker 4QF
Prepared auto restart 1 or prepared auto restart 2: when the 4th circuit breaker 4QF source current 4I1 is less than trip inspection no flow setpoint, the 4th circuit breaker 4QF supply voltage 4U1 is less than trip inspection definite value with no pressure, the first circuit breaker 1QF supply voltage 1U1 is greater than trip inspection compression set value, trip inspection has pressure-controlled word KG1 to put 1 and the 4th circuit breaker 4QF when manually controlling the two-position relay 4KKJ of circuit breaker 4KK or its deciliter state these conditions of position meeting after closing a floodgate simultaneously, prepared auto restart 1 logic stop and start put 1 with control word FS1 or prepared auto restart 2 logic stop and start control word FS2, through certain time delay tT4, to the 4th circuit breaker 4QF tripping operation control loop output pulse control signal, make the 4th circuit breaker 4QF tripping operation, export in-put of spare power supply tripping operation actuating signal simultaneously,
C. the first circuit breaker 1QF closes a floodgate and discharges and recharges control
C-1 discharging condition
Prepared auto restart 1 discharging condition 1
(1) when two-position relay 1KKJ position after closing a floodgate of hand control switch 1KK or its deciliter state of the first circuit breaker 1QF;
(2) when two-position relay 4KKJ position after separating brake of hand control switch 4KK or its deciliter state of the 4th circuit breaker 4QF;
(3) primary connection mode control word FS1 is 0;
(4) when the first tranformer protection action;
(5) when the first circuit breaker 1QF sends combined floodgate control command;
Prepared auto restart 1 discharging condition 2
(1) when two-position relay 1KKJ position after closing a floodgate of hand control switch 1KK or its deciliter state of the first circuit breaker 1QF;
(2) when two-position relay 2KKJ position after separating brake of hand control switch 2KK or its deciliter state of the second circuit breaker 2QF;
(3) primary connection mode control word FS1 is 0;
(4) when the first tranformer protection action;
(5) when the first circuit breaker 1QF sends combined floodgate control command;
Prepared auto restart 2 discharging conditions 1
(1) when two-position relay 1KKJ position after closing a floodgate of hand control switch 1KK or its deciliter state of the first circuit breaker 1QF;
(2) when two-position relay 4KKJ position after separating brake of hand control switch 4KK or its deciliter state of the 4th circuit breaker 4QF;
(3) primary connection mode control word FS2 is 0;
(4) when the first tranformer protection action;
(5) when the first circuit breaker 1QF sends combined floodgate control command;
Prepared auto restart 2 discharging conditions 2
(1) when two-position relay 1KKJ position after closing a floodgate of hand control switch 1KK or its deciliter state of the first circuit breaker 1QF;
(2) when two-position relay 3KKJ position after separating brake of hand control switch 3KK or its deciliter state of the 3rd circuit breaker 3QF;
(3) primary connection mode control word FS2 is 0;
(4) when the first tranformer protection action;
(5) when the first circuit breaker 1QF sends combined floodgate control command;
C-2 charge condition
Prepared auto restart 1 charge condition 1
(1) when two-position relay 4KKJ position after closing a floodgate of the 4th circuit breaker 4QF hand control switch 4KK or its deciliter state;
(2) when two-position relay 1KKJ position after separating brake of the first circuit breaker 1QF hand control switch 1KK or its deciliter state;
(3) when the open position relay 1TWJ of the first circuit breaker 1QF is in operate condition;
When above-mentioned arbitrary charge condition meets and arbitrary discharging condition while not meeting, the first circuit breaker 1QF is through charging time delay, and delay time is 1Tcd1, completes the charging of closing a floodgate after being made as 20 seconds to control;
Prepared auto restart 1 charge condition 2
(1) when two-position relay 2KKJ position after closing a floodgate of the second circuit breaker 2QF hand control switch 2KK or its deciliter state;
(2) when two-position relay 1KKJ position after separating brake of the first circuit breaker 1QF hand control switch 1KK or its deciliter state;
(3) when the open position relay 1TWJ of the first circuit breaker 1QF is in operate condition;
(4) primary connection mode control word FS3 is 1;
When above-mentioned arbitrary charge condition meets and arbitrary discharging condition while not meeting, the first circuit breaker 1QF is through charging time delay, and delay time is 1Tcd2, completes the charging of closing a floodgate after being made as 20 seconds to control;
Prepared auto restart 2 charge conditions 1
(1) when two-position relay 4KKJ position after closing a floodgate of the 4th circuit breaker 4QF hand control switch 4KK or its deciliter state;
(2) when two-position relay 1KKJ position after separating brake of the first circuit breaker 1QF hand control switch 1KK or its deciliter state;
(3) when the open position relay 1TWJ of the first circuit breaker 1QF is in operate condition;
When above-mentioned arbitrary charge condition meets and arbitrary discharging condition while not meeting, the first circuit breaker 1QF is through charging time delay, and delay time is 1Tcd3, completes the charging of closing a floodgate after being made as 20 seconds to control;
Prepared auto restart 2 charge conditions 2
(1) when two-position relay 3KKJ position after closing a floodgate of the 3rd circuit breaker 3QF hand control switch 3KK or its deciliter state;
(2) when two-position relay 1KKJ position after separating brake of the first circuit breaker 1QF hand control switch 1KK or its deciliter state;
(3) when the open position relay 1TWJ of the first circuit breaker 1QF is in operate condition;
(4) primary connection mode control word FS4 is 1;
When above-mentioned arbitrary charge condition meets and arbitrary discharging condition while not meeting, the first circuit breaker 1QF is through charging time delay, and delay time is 1Tcd4, completes the charging of closing a floodgate after being made as 20 seconds to control;
D. the first circuit breaker 1QF closes a floodgate and controls
D-1 prepared auto restart 1 first circuit breaker 1QF closes a floodgate and controls one
(1) when the first circuit breaker 1QF was open position originally, and really tripping of the 4th circuit breaker 4QF has been sent and checked to the 4th circuit breaker 4QF tripping operation control command; Or when being less than to close a floodgate, the first transformer side voltage examines definite value with no pressure, closing a floodgate, inspection control word KG2 with no pressure is 1 o'clock, simultaneously position and the 4th circuit breaker 4QF are in open position after closing a floodgate for the two-position relay 4KKJ of the 4th circuit breaker 4QF hand control switch 4KK or its deciliter state, and the 4th circuit breaker 4QF position is not corresponding;
(2) 1Tcd1 charging delay time arrives;
(3) first tranformer protections do not move;
In the time that above condition meets, after being tH1, exports delay time pulse control signal to the first circuit breaker 1QF combined floodgate control loop, and the first circuit breaker 1QF closes a floodgate, and exports in-put of spare power supply feed motion signal simultaneously;
D-2 prepared auto restart 1 first circuit breaker 1QF closes a floodgate and controls two
(1) when the first transformer side voltage is less than the inspection definite value with no pressure of closing a floodgate, closing a floodgate, inspection control word KG2 with no pressure is 1 o'clock, simultaneously the two-position relay 2KKJ of the second circuit breaker 2QF hand control switch 2KK or its deciliter state after closing a floodgate position and the second circuit breaker 2QF in open position, the second circuit breaker 2QF position is not corresponding, and primary connection mode control word FS3 is set to 1 simultaneously;
(2) 1Tcd2 charging delay time arrives;
(3) first tranformer protections do not move;
In the time that above condition meets, after being tH1, exports delay time pulse control signal to the first circuit breaker 1QF combined floodgate control loop, and the first circuit breaker 1QF closes a floodgate, and exports in-put of spare power supply feed motion signal simultaneously;
D-3 prepared auto restart 2 first circuit breaker 1QF close a floodgate and control one
(1) when the first circuit breaker 1QF was open position originally, and really tripping of the 4th circuit breaker 4QF has been sent and checked to the 4th circuit breaker 4QF tripping operation control command; Or when being less than to close a floodgate, the first transformer side voltage examines definite value with no pressure, closing a floodgate, inspection control word KG2 with no pressure is 1 o'clock, simultaneously position and the 4th circuit breaker 4QF are in open position after closing a floodgate for the two-position relay 4KKJ of the 4th circuit breaker 4QF hand control switch 4KK or its deciliter state, and the 4th circuit breaker 4QF position is not corresponding;
(2) 1Tcd3 charging delay time arrives;
(3) first tranformer protections do not move;
In the time that above condition meets, after being tH1, exports delay time pulse control signal to the first circuit breaker 1QF combined floodgate control loop, and the first circuit breaker 1QF closes a floodgate, and exports in-put of spare power supply feed motion signal simultaneously;
D-2 prepared auto restart 2 first circuit breaker 1QF close a floodgate and control two
(1) when the first transformer side voltage is less than the inspection definite value with no pressure of closing a floodgate, closing a floodgate, inspection control word KG2 with no pressure is 1 o'clock, simultaneously position and the 3rd circuit breaker 3QF are in open position after closing a floodgate for the two-position relay 3KKJ of the 3rd circuit breaker 3QF hand control switch 3KK or its deciliter state, and the 3rd circuit breaker 3QF position is not corresponding;
(2) 1Tcd4 charging delay time arrives;
(3) first tranformer protections do not move;
In the time that above condition meets, after being tH1, exports delay time pulse control signal to the first circuit breaker 1QF combined floodgate control loop, and the first circuit breaker 1QF closes a floodgate, and exports in-put of spare power supply feed motion signal simultaneously;
E. the second circuit breaker 2QF closes a floodgate and discharges and recharges control
E-1 discharging condition
Prepared auto restart 1 discharging condition 1
(1) when two-position relay 2KKJ position after closing a floodgate of hand control switch 2KK or its deciliter state of the second circuit breaker 2QF;
(2) when two-position relay 4KKJ position after separating brake of hand control switch 4KK or its deciliter state of the 4th circuit breaker 4QF;
(3) primary connection mode control word FS1 is 0;
(4) when the second tranformer protection action;
(5) when the second circuit breaker 2QF sends combined floodgate control command;
Prepared auto restart 1 discharging condition 2
(1) when two-position relay 2KKJ position after closing a floodgate of hand control switch 2KK or its deciliter state of the second circuit breaker 2QF;
(2) when two-position relay 1KKJ position after separating brake of hand control switch 1KK or its deciliter state of the first circuit breaker 1QF;
(3) primary connection mode control word FS1 is 0;
(4) when the first tranformer protection action;
(5) when the second circuit breaker 2QF sends combined floodgate control command;
E-2 charge condition
Prepared auto restart 1 charge condition 1
(1) when two-position relay 4KKJ position after closing a floodgate of the 4th circuit breaker 4QF hand control switch 4KK or its deciliter state;
(2) when two-position relay 2KKJ position after separating brake of the second circuit breaker 2QF hand control switch 2KK or its deciliter state;
(3) when the open position relay 2TWJ of the second circuit breaker 2QF is in operate condition;
(4) primary connection mode control word FS3 is 1;
When above-mentioned arbitrary charge condition meets and arbitrary discharging condition while not meeting, the second circuit breaker 2QF is through charging time delay, and delay time is 2Tcd1, completes the charging of closing a floodgate after being made as 20 seconds to control;
Prepared auto restart 1 charge condition 2
(1) when two-position relay 1KKJ position after closing a floodgate of the first circuit breaker 1QF hand control switch 1KK or its deciliter state;
(2) when two-position relay 2KKJ position after separating brake of the second circuit breaker 2QF hand control switch 2KK or its deciliter state;
(3) when the open position relay 2TWJ of the second circuit breaker 2QF is in operate condition;
(4) primary connection mode control word FS3 is 1;
When above-mentioned arbitrary charge condition meets and arbitrary discharging condition while not meeting, the second circuit breaker 2QF is through charging time delay, and delay time is 2Tcd2, completes the charging of closing a floodgate after being made as 20 seconds to control;
F. the second circuit breaker 2QF closes a floodgate and controls
F-1 prepared auto restart 1 second circuit breaker 2QF closes a floodgate and controls one
(1) when the second circuit breaker 2QF was open position originally, and work as the 4th circuit breaker 4QF tripping operation control command and sent and checked really tripping of the 4th circuit breaker 4QF; Or when being less than to close a floodgate, the second transformer side voltage examines definite value with no pressure, closing a floodgate, inspection control word KG2 with no pressure is 1 o'clock, simultaneously the two-position relay 4KKJ of the 4th circuit breaker 4QF hand control switch 4KK or its deciliter state after closing a floodgate position and the 4th circuit breaker 4QF in open position, position and the 3rd circuit breaker 3QF are in open position after closing a floodgate for the 4th circuit breaker 4QF position two-position relay 3KKJ not corresponding or simultaneously the 3rd circuit breaker 3QF hand control switch 3KK or its deciliter state, and the 3rd circuit breaker 3QF position is not corresponding;
(2) 2Tcd1 charging delay time arrives;
(3) second tranformer protections do not move;
In the time that above condition meets, after being tH2, exports delay time pulse control signal to the second circuit breaker 2QF combined floodgate control loop, and the second circuit breaker 2QF closes a floodgate, and exports in-put of spare power supply feed motion signal simultaneously;
F-2 prepared auto restart 1 second circuit breaker 2QF closes a floodgate and controls two
(1) when the second circuit breaker 2QF was open position originally, and really tripping of the first circuit breaker 1QF has been sent and checked to the first circuit breaker 1QF tripping operation control command; Or when being less than to close a floodgate, the first transformer side voltage examines definite value with no pressure, closing a floodgate, inspection control word KG2 with no pressure is 1 o'clock, simultaneously position and the first circuit breaker 1QF are in open position after closing a floodgate for the two-position relay 1KKJ of the first circuit breaker 1QF hand control switch 1KK or its deciliter state, and the first circuit breaker 1QF position is not corresponding;
(2) 2Tcd2 charging delay time arrives;
(3) first tranformer protections do not move;
In the time that above condition meets, after being tH2, exports delay time pulse control signal to the second circuit breaker 2QF combined floodgate control loop, and the second circuit breaker 2QF closes a floodgate, and exports in-put of spare power supply feed motion signal simultaneously;
G. the 3rd circuit breaker 3QF closes a floodgate and discharges and recharges control
G-1 discharging condition
Prepared auto restart 2 discharging conditions 1
(1) when two-position relay 3KKJ position after closing a floodgate of hand control switch 3KK or its deciliter state of the 3rd circuit breaker 3QF;
(2) when two-position relay 4KKJ position after separating brake of hand control switch 4KK or its deciliter state of the 4th circuit breaker 4QF;
(3) primary connection mode control word FS2 is 0;
(4) when the 3rd tranformer protection action;
(5) when the 3rd circuit breaker 3QF sends combined floodgate control command;
Prepared auto restart 2 discharging conditions 2
(1) when two-position relay 3KKJ position after closing a floodgate of hand control switch 3KK or its deciliter state of the 3rd circuit breaker 3QF;
(2) when two-position relay 1KKJ position after separating brake of hand control switch 1KK or its deciliter state of the first circuit breaker 1QF;
(3) primary connection mode control word FS2 is 0;
(4) when the second tranformer protection action;
(5) when the 3rd circuit breaker 3QF sends combined floodgate control command;
G-2 charge condition
Prepared auto restart 1 charge condition 1
(1) when two-position relay 4KKJ position after closing a floodgate of the 4th circuit breaker 4QF hand control switch 4KK or its deciliter state;
(2) when two-position relay 3KKJ position after separating brake of the 3rd circuit breaker 3QF hand control switch 3KK or its deciliter state;
(3) when the open position relay 3TWJ of the 3rd circuit breaker 3QF is in operate condition;
(4) primary connection mode control word FS4 is 1;
When above-mentioned arbitrary charge condition meets and arbitrary discharging condition while not meeting, the 3rd circuit breaker 3QF is through charging time delay, and delay time is 3Tcd1, completes the charging of closing a floodgate after being made as 20 seconds to control;
Prepared auto restart 2 charge conditions 2
(1) when two-position relay 1KKJ position after closing a floodgate of the first circuit breaker 1QF hand control switch 1KK or its deciliter state;
(2) when two-position relay 3KKJ position after separating brake of the 3rd circuit breaker 3QF hand control switch 3KK or its deciliter state;
(3) when the open position relay 3TWJ of the 3rd circuit breaker 3QF is in operate condition;
(4) primary connection mode control word FS4 is 1;
When above-mentioned arbitrary charge condition meets and arbitrary discharging condition while not meeting, the second circuit breaker 2QF is through charging time delay, and delay time is 3Tcd2, completes the charging of closing a floodgate after being made as 20 seconds to control;
H. the 3rd circuit breaker 3QF closes a floodgate and controls
H-1 prepared auto restart 2 the 3rd circuit breaker 3QF closes a floodgate and controls one
(1) when the 3rd circuit breaker 3QF was open position originally, and really tripping of the 4th circuit breaker 4QF has been sent and checked to the 4th circuit breaker 4QF tripping operation control command; Or when being less than to close a floodgate, the 3rd transformer side voltage examines definite value with no pressure, closing a floodgate, inspection control word KG2 with no pressure is 1 o'clock, simultaneously position and the 4th circuit breaker 4QF are in open position after closing a floodgate for the two-position relay 4KKJ of the 4th circuit breaker 4QF hand control switch 4KK or its deciliter state, and the 4th circuit breaker 4QF position is not corresponding;
(2) 3Tcd1 charging delay time arrives;
(3) the 3rd tranformer protections do not move;
In the time that above condition meets, after being tH3, exports time delay delay time pulse control signal to the three circuit breaker 3QF combined floodgate control loops, and the 3rd circuit breaker 3QF closes a floodgate, and exports in-put of spare power supply feed motion signal simultaneously;
H-2 prepared auto restart 2 the 3rd circuit breaker 3QF closes a floodgate and controls two
(1) when the 3rd circuit breaker 3QF was open position originally, and really tripping of the first circuit breaker 1QF has been sent and checked to the first circuit breaker 1QF tripping operation control command; Or when being less than to close a floodgate, the second transformer side voltage examines definite value with no pressure, closing a floodgate, inspection control word KG2 with no pressure is 1 o'clock, simultaneously the two-position relay 1KKJ of the first circuit breaker 1QF hand control switch 1KK or its deciliter state after closing a floodgate position and the first circuit breaker 1QF in open position, position and the second circuit breaker 2QF are in open position after closing a floodgate for the two-position relay 2KKJ of not corresponding or the second circuit breaker 2QF hand control switch 2KK or its deciliter state of the first circuit breaker 1QF position, and the second circuit breaker 2QF position is not corresponding;
(2) 3Tcd2 charging delay time arrives;
(3) second tranformer protections do not move;
In the time that above condition meets, after being tH3, exports delay time pulse control signal to the three circuit breaker 3QF combined floodgate control loops, and the 3rd circuit breaker 3QF closes a floodgate, and exports in-put of spare power supply feed motion signal simultaneously;
I.4QF breaker closing discharges and recharges control
I-1 discharging condition
Prepared auto restart 1 discharging condition 1
(1) when two-position relay 4KKJ position after closing a floodgate of hand control switch 4KK or its deciliter state of the 4th circuit breaker 4QF;
(2) when two-position relay 1KKJ position after separating brake of hand control switch 1KK or its deciliter state of the first circuit breaker 1QF;
(3) primary connection mode control word FS1 is 0;
(4) when the 3rd tranformer protection action;
(5) when the 4th circuit breaker 4QF sends combined floodgate control command;
Prepared auto restart 1 discharging condition 2
(1) when two-position relay 4KKJ position after closing a floodgate of hand control switch 4KK or its deciliter state of the 4th circuit breaker 4QF;
(2) when two-position relay 2KKJ position after separating brake of hand control switch 2KK or its deciliter state of the second circuit breaker 2QF;
(3) primary connection mode control word FS1 is 0;
(4) when the 3rd tranformer protection action;
(5) when the 4th circuit breaker 4QF sends combined floodgate control command;
Prepared auto restart 2 discharging conditions 1
(1) when two-position relay 4KKJ position after closing a floodgate of hand control switch 4KK or its deciliter state of the 4th circuit breaker 4QF;
(2) when two-position relay 1KKJ position after separating brake of hand control switch 1KK or its deciliter state of the first circuit breaker 1QF;
(3) primary connection mode control word FS2 is 0;
(4) when the 3rd tranformer protection action;
(5) when the 4th circuit breaker 4QF sends combined floodgate control command;
Prepared auto restart 2 discharging conditions 2
(1) when two-position relay 4KKJ position after closing a floodgate of hand control switch 4KK or its deciliter state of the 4th circuit breaker 4QF;
(2) when two-position relay 3KKJ position after separating brake of hand control switch 3KK or its deciliter state of the 3rd circuit breaker 3QF;
(3) primary connection mode control word FS2 is 0;
(4) when the 3rd tranformer protection action;
(5) when the 4th circuit breaker 4QF sends combined floodgate control command;
I-2 charge condition
Prepared auto restart 1 charge condition 1
(1) when two-position relay 1KKJ position after closing a floodgate of the first circuit breaker 1QF hand control switch 1KK or its deciliter state;
(2) when two-position relay 4KKJ position after separating brake of the 4th circuit breaker 4QF hand control switch 4KK or its deciliter state;
(3) when the open position relay 4TWJ of the 4th circuit breaker 4QF is in operate condition;
When above-mentioned arbitrary charge condition meets and arbitrary discharging condition while not meeting, the 4th circuit breaker 4QF is through charging time delay, and delay time is 4Tcd1, completes the charging of closing a floodgate after being made as 20 seconds to control;
Prepared auto restart 1 charge condition 2
(1) when two-position relay 2KKJ position after closing a floodgate of the second circuit breaker 2QF hand control switch 2KK or its deciliter state;
(2) when two-position relay 4KKJ position after separating brake of the 4th circuit breaker 4QF hand control switch 4KK or its deciliter state;
(3) when the open position relay 4TWJ of the 4th circuit breaker 4QF is in operate condition;
(4) primary connection mode control word FS3 is 1;
When above-mentioned arbitrary charge condition meets and arbitrary discharging condition while not meeting, the 4th circuit breaker 4QF is through charging time delay, and delay time is 4Tcd2, completes the charging of closing a floodgate after being made as 20 seconds to control;
Prepared auto restart 2 charge conditions 1
(1) when two-position relay 1KKJ position after closing a floodgate of the first circuit breaker 1QF hand control switch 1KK or its deciliter state;
(2) when two-position relay 4KKJ position after separating brake of the 4th circuit breaker 4QF hand control switch 4KK or its deciliter state;
(3) when the open position relay 4TWJ of the 4th circuit breaker 4QF is in operate condition;
When above-mentioned arbitrary charge condition meets and arbitrary discharging condition while not meeting, when the 4th circuit breaker 4QF is through charging time delay, delay time is 4Tcd3, completes the charging of closing a floodgate after being made as 20 seconds to control;
Prepared auto restart 2 charge conditions 2
(1) when two-position relay 3KKJ position after closing a floodgate of the 3rd circuit breaker 3QF hand control switch 3KK or its deciliter state;
(2) when two-position relay 4KKJ position after separating brake of the 4th circuit breaker 4QF hand control switch 4KK or its deciliter state;
(3) when the open position relay 4TWJ of the 4th circuit breaker 4QF is in operate condition;
(4) primary connection mode control word FS4 is 1;
When above-mentioned arbitrary charge condition meets and arbitrary discharging condition while not meeting, the 4th circuit breaker 4QF is 4Tcd4 through charging time delay delay time, completes the charging of closing a floodgate after being made as 20 seconds to control;
J. the 4th circuit breaker 4QF closes a floodgate and controls
J-1 prepared auto restart 1 the 4th circuit breaker 4QF closes a floodgate and controls one
(1) when the 4th circuit breaker 4QF was open position originally, and really tripping of the first circuit breaker 1QF has been sent and checked to the first circuit breaker 1QF tripping operation control command; Or when being less than to close a floodgate, the 3rd transformer side voltage examines definite value with no pressure, closing a floodgate, inspection control word KG2 with no pressure is 1 o'clock, simultaneously position and the first circuit breaker 1QF are in open position after closing a floodgate for the two-position relay 1KKJ of the first circuit breaker 1QF hand control switch 1KK or its deciliter state, and the first circuit breaker 1QF position is not corresponding;
(2) 4Tcd1 charging delay time arrives;
(3) the 3rd tranformer protections do not move;
In the time that above condition meets, after being tH4, exports time delay delay time pulse control signal to the four breaker closing control loops, and the 4th circuit breaker 4QF closes a floodgate, and exports in-put of spare power supply feed motion signal simultaneously;
J-2 prepared auto restart 1 the 4th circuit breaker 4QF closes a floodgate and controls two
(1) when the 3rd transformer side voltage is less than the inspection definite value with no pressure of closing a floodgate, closing a floodgate, inspection control word KG2 with no pressure is 1 o'clock, simultaneously position and the second circuit breaker 2QF are in open position after closing a floodgate for the two-position relay 2KKJ of the second circuit breaker 2QF hand control switch 2KK or its deciliter state, and the second circuit breaker 2QF position is not corresponding;
(2) 4Tcd2 charging delay time arrives;
(3) the 3rd tranformer protections do not move;
In the time that above condition meets, after being tH4, exports delay time pulse control signal to the four circuit breaker 4QF combined floodgate control loops, and the 4th circuit breaker 4QF closes a floodgate, and exports in-put of spare power supply feed motion signal simultaneously;
J-3 prepared auto restart 2 the 4th circuit breaker 4QF closes a floodgate and controls one
(1) when the 4th circuit breaker 4QF was open position originally, and really tripping of the first circuit breaker 1QF has been sent and checked to the first circuit breaker 1QF tripping operation control command; Or when being less than to close a floodgate, the 3rd transformer side voltage examines definite value with no pressure, closing a floodgate, inspection control word KG2 with no pressure is 1 o'clock, simultaneously position and the first circuit breaker 1QF are in open position after closing a floodgate for the two-position relay 1KKJ of the first circuit breaker 1QF hand control switch 1KK or its deciliter state, and the first circuit breaker 1QF position is not corresponding;
(2) 4Tcd3 charging delay time arrives;
(3) the 3rd tranformer protections do not move;
In the time that above condition meets, after being tH4, exports time delay delay time pulse control signal to the four circuit breaker 4QF combined floodgate control loops, and the 4th circuit breaker 4QF closes a floodgate, and exports in-put of spare power supply feed motion signal simultaneously;
J-4 prepared auto restart 2 the 4th circuit breaker 4QF closes a floodgate and controls two
(1) when the 3rd transformer side voltage is less than the inspection definite value with no pressure of closing a floodgate, closing a floodgate, inspection control word KG2 with no pressure is 1 o'clock, simultaneously position and the 3rd circuit breaker 3QF are in open position after closing a floodgate for the two-position relay 3KKJ of the 3rd circuit breaker 3QF hand control switch 3KK or its deciliter state, and the 3rd circuit breaker 3QF position is not corresponding;
(2) 4Tcd4 charging delay time arrives;
(3) the 3rd tranformer protections do not move;
In the time that above condition meets, after being tH4, exports time delay delay time pulse control signal to the four circuit breaker 4QF combined floodgate control loops, and the 4th circuit breaker 4QF closes a floodgate, and exports in-put of spare power supply feed motion signal simultaneously;
K. abnormal signal control
The 1 abnormal signal control of K-1 prepared auto restart
(1) when the first transformer side or the second transformer side or the 3rd transformer side voltage are less than the inspection definite value with no pressure of closing a floodgate, be 1 o'clock at the inspection control word KG2 with no pressure that closes a floodgate, after certain time-delay, send abnormal signal;
(2) when the first circuit breaker 1QF does not send tripping operation control command, be less than two-position relay 1KKJ that trip inspection definite value with no pressure and the first circuit breaker 1QF manually control circuit breaker 1KK or its deciliter state when position, after certain time-delay, send abnormal signal after closing a floodgate and the first circuit breaker 1QF source current 1I1 is less than trip inspection no flow setpoint or the first circuit breaker 1QF supply voltage 1U1;
(3) when the 4th circuit breaker 4QF does not send tripping operation control command, be less than two-position relay 4KKJ that trip inspection definite value with no pressure and the 4th circuit breaker 4QF manually control circuit breaker 4KK or its deciliter state when position, after certain time-delay, send abnormal signal after closing a floodgate and the 4th circuit breaker 4QF source current 4I1 is less than trip inspection no flow setpoint or the 4th circuit breaker 4QF supply voltage 4U1;
The 2 abnormal signal controls of K-2 prepared auto restart
(1) when the first transformer side or the second transformer side or the 3rd transformer side voltage are less than the inspection definite value with no pressure of closing a floodgate, be 1 o'clock at the inspection control word KG2 with no pressure that closes a floodgate, after certain time-delay, send abnormal signal;
(2) when the first circuit breaker 1QF does not send tripping operation control command, be less than two-position relay 1KKJ that trip inspection definite value with no pressure and the first circuit breaker 1QF manually control circuit breaker 1KK or its deciliter state when position, after certain time-delay, send abnormal signal after closing a floodgate and the first circuit breaker 1QF source current 1I1 is less than trip inspection no flow setpoint or the first circuit breaker 1QF supply voltage 1U1;
(3) when the 4th circuit breaker 4QF does not send tripping operation control command, be less than two-position relay 4KKJ that trip inspection definite value with no pressure and the 4th circuit breaker 4QF manually control circuit breaker 4KK or its deciliter state when position, after certain time-delay, send abnormal signal after closing a floodgate and the 4th circuit breaker 4QF source current 4I1 is less than trip inspection no flow setpoint or the 4th circuit breaker 4QF supply voltage 4U1;
The control method of described internal bridge or single-trunk segmental wiring prepared auto restart is: when operational mode is internal bridge or during for single-trunk segmental wiring, on the control logic circuit basis of above-mentioned expansion internal bridge, by the control word FS1 of primary connection mode put 1 and FS2 set to 0, simultaneously FS3 put 1 and FS4 set to 0; Or the control word FS1 of primary connection mode is set to 0 with FS2 and puts 1, and FS3 sets to 0 with FS4 and puts 1 simultaneously;
The control method of described single bus scheme is: in the time that an operational mode is single bus scheme, on the control logic logical circuit basis of above-mentioned expansion internal bridge, by the control word FS1 of primary connection mode put 1 and FS2 set to 0, simultaneously control word FS3 sets to 0 with FS4 and sets to 0; Or the control word FS1 of primary connection mode is set to 0 with FS2 and puts 1, and control word FS3 sets to 0 with FS4 and sets to 0 simultaneously.
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