CN104967206B - Colliery low pressure double loop dual power supply permanent magnetism feed interconnection switch operating circuit - Google Patents
Colliery low pressure double loop dual power supply permanent magnetism feed interconnection switch operating circuit Download PDFInfo
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Abstract
Colliery low pressure double loop dual power supply permanent magnetism of the present invention feeds interconnection switch operating circuit, belongs to the technical field of permanent magnetism feed interconnection switch；The technical problem of solution is：There is provided it is a kind of it is achievable for it is electrically continuous and can detect in time shut down reason permanent magnetism feed interconnection switch operating circuit；The technical solution used for：Colliery low pressure double loop dual power supply permanent magnetism feed interconnection switch operating circuit, interconnection switch is fed including the first electric power loop, second source circuit and permanent magnetism, the permanent magnetism feed interconnection switch includes the first low voltage permanent magnetic vacuum feed leg, the second low voltage permanent magnetic vacuum feed leg and wire connection terminal L1, L2, L3；The present invention is suitable for the technical field of feeding switch.
Description
Technical field
Colliery low pressure double loop dual power supply permanent magnetism of the present invention feeds interconnection switch operating circuit, belongs to permanent magnetism feed contact and opens
The technical field of pass.
Background technology
With the completion of coal resources merging and reorganization, general layout that coal industry forms large group and deposits, colliery more collects
Dough, scale, the coal production of single pithead is increasing, how to ensure that the normal continuous operation of equipment is safety of coal mines life
The important means produced, complete and overfulfilled the assignment, the particularly requirement to some important equipments are more integrated, hommization, right
The work continuity of equipment, emergency processing require higher.
To adapt to the actual demand of coal mine user, on the basis of high quick-fried interconnection switch Successful utilization, colliery low pressure double back
Road dual power supply permanent magnetism feed interconnection switch comes into being；It solve some key equipments power supply discontinuity, avoid because
Shut down and stop production caused by having a power failure for higher level's power supply unit, ensured normal continuous operation and the Safety of Coal Mine Production of equipment.
The content of the invention
The present invention overcomes the shortcomings of the prior art, and technical problem to be solved is：A kind of achievable power supply is provided
Continuously and can detect in time shut down reason permanent magnetism feed interconnection switch operating circuit.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is：Colliery low pressure double loop dual power supply permanent magnetism
Feed interconnection switch operating circuit, including the first electric power loop, second source circuit and permanent magnetism feed interconnection switch, described first
Electric power loop includes the first colliery high voltage power supply, the first mining high-explosive switch, the first flameproof dry type transformer and first
Low-voltage vacuum feeds master switch, and the second source circuit includes the second colliery high voltage power supply, the second mining high-explosive switch, second
Flameproof dry type transformer and the second low-voltage vacuum feed master switch, the permanent magnetism feed interconnection switch include the first low pressure
Permanent magnet vacuum feed leg, the second low voltage permanent magnetic vacuum feed leg and wire connection terminal L1, L2, L3, first low voltage permanent magnetic
Vacuum feed leg includes the first low voltage vacuum circuit breaker for permanent, the first power transformer T1, the first intelligent feed protection
Device ZB1 and wire connection terminal U2, V2, W2, it is true that the second low voltage permanent magnetic vacuum feed leg includes the second permanent magnet mechanism low pressure
Empty breaker, second source transformer T2, the second intelligence feeder protection equipment ZB2 and wire connection terminal U3, V3, W3；Described first
The end of incoming cables of low-voltage vacuum feed master switch is sequentially connected in series the first flameproof dry type transformer and the first mining high-explosive switch
It is connected afterwards with the first colliery high voltage power supply, the communication terminal of the first low-voltage vacuum feed master switch and the first intelligent feed protection
Device ZB1 is connected, the first intelligent feeder protection equipment ZB1 also respectively with the first low voltage vacuum circuit breaker for permanent the
One control terminal is connected with the leading-out terminal of the first power transformer T1, and the end of incoming cables of the first power transformer T1 simultaneously connects first forever
Leading-out terminal behind the end of incoming cables of magnetic mechanism low-voltage vacuum circuit breaker with the first low-voltage vacuum feed master switch is connected, and described first forever
The leading-out terminal of magnetic mechanism low-voltage vacuum circuit breaker is connected with wire connection terminal U2, V2, W2；Second low-voltage vacuum feeds master switch
End of incoming cables be sequentially connected in series after the second flameproof dry type transformer and the second mining high-explosive switch and the second colliery high-voltage electricity
Source is connected, and the communication terminal of second low-voltage vacuum feed master switch is connected with the second intelligence feeder protection equipment ZB2, and described the
Two intelligent feeder protection equipment ZB2 also the first control terminals and second source with the second low voltage vacuum circuit breaker for permanent respectively
The leading-out terminal of transformer T2 is connected, and the end of incoming cables of the second source transformer T2 simultaneously connects the open circuit of the second permanent magnet mechanism low-voltage vacuum
Leading-out terminal behind the end of incoming cables of device with the second low-voltage vacuum feed master switch is connected, the second permanent magnet mechanism low-voltage vacuum open circuit
The leading-out terminal of device is connected with wire connection terminal U3, V3, W3；Second control terminal of first low voltage vacuum circuit breaker for permanent with
Second intelligence feeder protection equipment ZB2 is connected, the second control terminal and first of second low voltage vacuum circuit breaker for permanent
Intelligent feeder protection equipment ZB1 is connected, the first intelligent feeder protection equipment ZB1 also with the second intelligent feeder protection equipment
ZB2 is connected, and described wire connection terminal U2, V2, W2 and wire connection terminal U3, V3, W3 are connected with wire connection terminal L1, L2, L3.
Described first intelligent feeder protection equipment ZB1 includes the first power supply unit, the first output unit, first processor list
Member and the first communication unit, the first processor unit are communicated with the first power supply unit, the first output unit and first respectively
Unit is connected, and the described second intelligent feeder protection equipment ZB2 includes second source unit, the second output unit, second processor
Unit and the second communication unit, the second processor unit are logical with second source unit, the second output unit and second respectively
News unit be connected, first power supply unit is connected with the leading-out terminal of the first power transformer T1, first output unit and
First control terminal of the first low voltage vacuum circuit breaker for permanent is connected, first communication unit respectively with the second communication unit
It is connected with the communication terminal of the first low-voltage vacuum feed master switch, the outlet of the second source unit and second source transformer T2
End is connected, and second output unit is connected with the first control terminal of the second low voltage vacuum circuit breaker for permanent, and described second
Communication unit is connected with the communication terminal of the second low-voltage vacuum feed master switch；The first intelligence feeder protection equipment ZB1 is also wrapped
The first display is included, first display is connected with first processor unit, and the described second intelligent feeder protection equipment ZB2 is also
Including second display, the second display is connected with second processor unit；The inlet wire of the first power transformer T1
Hold and connect behind the end of incoming cables of the first low voltage vacuum circuit breaker for permanent by wire connection terminal U0, V0, W0 and the first low-voltage vacuum
The leading-out terminal of feed master switch is connected；The end of incoming cables of the second source transformer T2 simultaneously connects the second permanent magnet mechanism low-voltage vacuum and breaks
The leading-out terminal for feeding master switch behind the end of incoming cables of road device with the second low-voltage vacuum by wire connection terminal U1, V1, W1 is connected；Described
One intelligence feeder protection equipment ZB1 is connected by CAN communication line with the second intelligence feeder protection equipment ZB2；First low pressure
The communication terminal of vacuum feed master switch is connected by RS485 connections with the first intelligence feeder protection equipment ZB1；Described second is low
The communication terminal of pressure vacuum feed master switch is connected by RS485 connections with the second intelligence feeder protection equipment ZB2；Described first
Colliery high voltage power supply and the second colliery high voltage power supply are 6KV high voltage power supplies；First colliery high voltage power supply and the second colliery
High voltage power supply is 10KV high voltage power supplies.
The present invention has the advantages that compared with prior art：
Colliery low pressure double loop dual power supply permanent magnetism feed interconnection switch operating circuit, including the first electric power loop, the second electricity
Resource loop and permanent magnetism feed interconnection switch, first electric power loop includes the first colliery high voltage power supply, the first mining height pops
Pass, the first flameproof dry type transformer and the first low-voltage vacuum feed master switch, the second source circuit includes second
Colliery high voltage power supply, the second mining high-explosive switch, the second flameproof dry type transformer and the second low-voltage vacuum feed are always opened
Close, the permanent magnetism feed interconnection switch includes the first low voltage permanent magnetic vacuum feed leg, the second low voltage permanent magnetic vacuum feed leg
With wire connection terminal L1, L2, L3, the first low voltage permanent magnetic vacuum feed leg includes the open circuit of the first permanent magnet mechanism low-voltage vacuum
Device, the first power transformer T1, the first intelligence feeder protection equipment ZB1 and wire connection terminal U2, V2, W2, second low pressure is forever
Magnetic vacuum feed leg includes the second low voltage vacuum circuit breaker for permanent, second source transformer T2, the second intelligence feed and protects
Protection unit ZB2 and wire connection terminal U3, V3, W3；The present invention can switch electricity between the first electric power loop and second source circuit
Source exports, and can be by the first intelligent feeder protection equipment ZB1, the second intelligent feeder protection equipment ZB2 promptly and accurately
Detection, which has a power failure, shuts down reason, and guarantee is brought for the safety in production in colliery；If load side fault trip, which is shut down, then forbids circuit
Switching is closed a floodgate, and avoids secondary failure from damaging, if one of source-side fault dead electricity or higher level trip, dead electricity then switches back into
Road is closed a floodgate, and the power supply of another electric power loop is exported, and ensures the continuity and security of power supply, whole circuit structure letter
It is clean, it is easy to install, it is highly practical.
Brief description of the drawings
The present invention will be further described in detail below in conjunction with the accompanying drawings；
Fig. 1 is the electrical block diagram of the present invention；
In figure：1 is the first colliery high voltage power supply, and 2 be the second colliery high voltage power supply, and 3 be the first mining high-explosive switch, and 4 are
Second mining high-explosive switch, 5 be the first flameproof dry type transformer, and 6 be the second flameproof dry type transformer, and 7 are
First low-voltage vacuum feeds master switch, and 8 feed master switch for the second low-voltage vacuum, and 9 be the open circuit of the first permanent magnet mechanism low-voltage vacuum
Device, 10 be the second low voltage vacuum circuit breaker for permanent, and 11 be the first power supply unit, and 12 be the first output unit, and 13 be first
Processor unit, 14 be the first display, and 15 be the first communication unit, and 16 be second source unit, and 17 be the second output unit,
18 be second processor unit, and 19 be second display, and 20 be the second communication unit.
Embodiment
As shown in Figure 1, colliery low pressure double loop dual power supply permanent magnetism feeds interconnection switch operating circuit, including the first power supply returns
Road, second source circuit and permanent magnetism feed interconnection switch, first electric power loop include the first colliery high voltage power supply 1, first
Mining high-explosive switch 3, the first flameproof dry type transformer 5 and the first low-voltage vacuum feed master switch 7, the second source
It is low that circuit includes the second colliery high voltage power supply 2, the second mining high-explosive switch 4, the second flameproof dry type transformer 6 and second
Vacuum feed master switch 8 is pressed, specifically, first colliery high voltage power supply 1 and the second colliery high voltage power supply 2 can be individually electric
Source, can also be provided by two different transmission of electricity ports of a power supply；The permanent magnetism feed interconnection switch includes the first low voltage permanent magnetic
Vacuum feed leg, the second low voltage permanent magnetic vacuum feed leg and wire connection terminal L1, L2, L3, the first low voltage permanent magnetic vacuum
Feed leg includes the first low voltage vacuum circuit breaker for permanent 9, the first power transformer T1, the first intelligent feeder protection equipment
ZB1 and wire connection terminal U2, V2, W2, the second low voltage permanent magnetic vacuum feed leg are broken including the second permanent magnet mechanism low-voltage vacuum
Road device 10, second source transformer T2, the second intelligence feeder protection equipment ZB2 and wire connection terminal U3, V3, W3；
The end of incoming cables of the first low-voltage vacuum feed master switch 7 is sequentially connected in series the first flameproof dry type transformer 5
It is connected with after the first mining high-explosive switch 3 with the first colliery high voltage power supply 1, the first low-voltage vacuum feed master switch 7 leads to
News end is connected with the first intelligence feeder protection equipment ZB1, the first intelligence feeder protection equipment ZB1 also respectively with the first permanent magnetism
First control terminal of mechanism low-voltage vacuum circuit breaker 9 is connected with the leading-out terminal of the first power transformer T1, and first power supply becomes
Simultaneously always opened with the first low-voltage vacuum feed after connecing the end of incoming cables of the first low voltage vacuum circuit breaker for permanent 9 end of incoming cables of depressor T1
The leading-out terminal of pass 7 is connected, leading-out terminal and wire connection terminal U2, V2, W2 phase of first low voltage vacuum circuit breaker for permanent 9
Even；The end of incoming cables of the second low-voltage vacuum feed master switch 8 is sequentially connected in series the second flameproof dry type transformer 6 and second
Be connected after mining high-explosive switch 4 with the second colliery high voltage power supply 2, the communication terminal of second low-voltage vacuum feed master switch 8 with
Second intelligence feeder protection equipment ZB2 is connected, and the described second intelligent feeder protection equipment ZB2 is also low with the second permanent magnet mechanism respectively
First control terminal of pressure vacuum circuit breaker 10 is connected with the leading-out terminal of second source transformer T2, the second source transformer T2
End of incoming cables and connect behind the end of incoming cables of the second low voltage vacuum circuit breaker for permanent 10 with the second low-voltage vacuum feed master switch 8
Leading-out terminal is connected, and the leading-out terminal of second low voltage vacuum circuit breaker for permanent 10 is connected with wire connection terminal U3, V3, W3；Institute
The second control terminal for stating the first low voltage vacuum circuit breaker for permanent 9 is connected with the second intelligence feeder protection equipment ZB2, and described
Second control terminal of two low voltage vacuum circuit breaker for permanent 10 is connected with the first intelligence feeder protection equipment ZB1, and described first
Intelligent feeder protection equipment ZB1 is also connected with the second intelligence feeder protection equipment ZB2, described wire connection terminal U2, V2, W2 and wiring
Terminal U3, V3, W3 are connected with wire connection terminal L1, L2, L3.
Specifically, if above-mentioned first flameproof dry type transformer 5, the second flameproof dry type transformer 6 are defeated
When going out power supply, then the first electric power loop, second source circuit are all powered, the first low-voltage vacuum feed master switch 7, the second low pressure
Vacuum feed master switch 8 all closes a floodgate after operation, and the first low voltage vacuum circuit breaker for permanent 9 and the second permanent magnet mechanism low pressure are true
End of incoming cables U0, V0, W0 and U1, V1, W1 terminal of empty breaker 10 obtain electric, the first power transformer T1 and second source transformer
T2 obtains electric, and the first intelligence feeder protection equipment ZB1 and the second intelligence feeder protection equipment ZB2 obtain electric work, between communicate connection,
At this moment the operation if the first low voltage vacuum circuit breaker for permanent 9 closes a floodgate, the first intelligent feeder protection equipment ZB1, the second intelligence
Energy feeder protection equipment ZB2, the first low-voltage vacuum feed master switch 7, the second low-voltage vacuum feed master switch 8 all obtain first forever
Magnetic mechanism low-voltage vacuum circuit breaker 9 closes a floodgate the information of operation, and at this moment the second intelligence feeder protection equipment ZB2 sends instruction and forbids the
Two low voltage vacuum circuit breaker for permanent 10, which close a floodgate, to be run, and the first low voltage vacuum circuit breaker for permanent 9, the second permanent magnet mechanism are low
Pressure vacuum circuit breaker 10 enters electrical interlocks, and guarantee can only a low voltage vacuum circuit breaker for permanent combined floodgate operation.
At this moment the operation if the first low voltage vacuum circuit breaker for permanent 9 closes a floodgate, but the first permanent magnet mechanism low-voltage vacuum breaks
Device 9 load side in road is faulty, then the first intelligence feeder protection equipment ZB1 sends instruction, the open circuit of the first permanent magnet mechanism low-voltage vacuum
9 fault trip of device, the first intelligent feeder protection equipment ZB1 failure lockings, while the first intelligent feeder protection equipment ZB1, second
Intelligent feeder protection equipment ZB2 communication informations mutually pass, and the second intelligence feeder protection equipment ZB2, which continues to send instruction, forbids second forever
Magnetic mechanism low-voltage vacuum circuit breaker 10, which closes a floodgate, to be run；At this moment the operation if the first low voltage vacuum circuit breaker for permanent 9 closes a floodgate, on
It is faulty to state 9 mains side of the first low voltage vacuum circuit breaker for permanent, then the first low-voltage vacuum feed 7 fault trip of master switch,
First intelligent feeder protection equipment ZB1 power failure trippings, but the first intelligence feeder protection equipment ZB1 after dead electricity can delay working 3 ~
5 seconds, at this moment the first intelligence feeder protection equipment ZB1 and the first low-voltage vacuum feed master switch 7 communicate, read the first low-voltage vacuum
State and on off state after tripping before feed master switch 7 trips, and the intelligence feedbacks of the first intelligence feeder protection equipment ZB1 and second
Electrical protective device ZB2 communication informations mutually pass, and the second intelligence feeder protection equipment ZB2 have received the first intelligent feeder protection equipment
The status information of ZB1 and the first low-voltage vacuum feed master switch 7, the second intelligence feeder protection equipment ZB2 pass through built-in program
Logic, judgement are that the tripping of the first low voltage vacuum circuit breaker for permanent 9 is that mains side is faulty rather than the first permanent magnet mechanism low pressure
9 load side of vacuum circuit breaker is faulty, and at this moment it is low to send instruction the second permanent magnet mechanism of control by the second intelligence feeder protection equipment ZB2
Vacuum circuit breaker 10 is pressed to close a floodgate operation, even if 1 troubleshooting of the first colliery high voltage power supply restores electricity, at this moment the first permanent magnet mechanism
Low-voltage vacuum circuit breaker 9 it is electric after also enter electrical interlocks with the second low voltage vacuum circuit breaker for permanent 10, guarantee first is forever
9 and second low voltage vacuum circuit breaker for permanent 10 of magnetic mechanism low-voltage vacuum circuit breaker can only have an operation of closing a floodgate, so that complete
Switching into power supply supplies electricity output.
At this moment the operation if the first low voltage vacuum circuit breaker for permanent 9 closes a floodgate, above-mentioned first low-voltage vacuum feed are always opened
Close 7 source-side faults and cause the first mining 3 fault trip of high-explosive switch or fault-free but the first mining 3 dead electricity of high-explosive switch jump
Lock, at this moment first intelligence feeder protection equipment ZB1 delay working 3 ~ 5 seconds after dead electricity, at this moment the first intelligent feeder protection equipment
ZB1 is communicated with the first low-voltage vacuum feed master switch 7, reads the first low-voltage vacuum feed 7 on off state of master switch, and first
The intelligent feeder protection equipment ZB2 communication informations of intelligent feeder protection equipment ZB1 and second mutually pass, the second intelligent feeder protection equipment
ZB2 have received the status information of the first intelligence feeder protection equipment ZB1 and the first low-voltage vacuum feed master switch 7, the second intelligence
For feeder protection equipment ZB2 by built-in programmed logic, judgement is the power-off of 9 mains side of the first low voltage vacuum circuit breaker for permanent
Tripping, at this moment the second intelligence feeder protection equipment ZB2, which is sent, instructs the second low voltage vacuum circuit breaker for permanent 10 of control to close a floodgate
Operation, even if 1 troubleshooting of the first colliery high voltage power supply restores electricity, at this moment the first low voltage vacuum circuit breaker for permanent 9 obtains
Also enter electrical interlocks after electricity with the second low voltage vacuum circuit breaker for permanent 10, ensure the open circuit of the first permanent magnet mechanism low-voltage vacuum
9 and second low voltage vacuum circuit breaker for permanent 10 of device can only have an operation of closing a floodgate, so as to complete the switching of power supply
For electricity output.
At this moment operation, when pressing stop botton, the first permanent magnetism if the first low voltage vacuum circuit breaker for permanent 9 closes a floodgate
9 separating brake of mechanism low-voltage vacuum circuit breaker, then the first low-voltage vacuum feed master switch 7 and the first intelligence feeder protection equipment ZB1 lead to
News, the intelligent feeder protection equipment ZB2 communication informations of the first intelligence feeder protection equipment ZB1 and second mutually pass, intelligent feed protection
Device ZB2 have received the first intelligence feeder protection equipment ZB1 and the first low-voltage vacuum feed master switch 7 status information, second
Intelligent feeder protection equipment ZB2 by built-in programmed logic, judge 9 fault-free of the first low voltage vacuum circuit breaker for permanent or
It is active separating brake, at this moment the second intelligence feeder protection equipment ZB2 sends instruction the second low voltage vacuum circuit breaker for permanent of control
10, which close a floodgate, runs, and completes the automatic switchover output of power supply；At this moment the fortune if the first low voltage vacuum circuit breaker for permanent 9 closes a floodgate
OK, when pressing stop botton, 9 separating brake of the first low voltage vacuum circuit breaker for permanent, is at this moment not required the second permanent magnet mechanism low
Press vacuum circuit breaker 10 to close a floodgate to run, that is, the automatic switchover output of power supply is not required, then in the first intelligent feeder protection equipment
ZB1, the second intelligent feeder protection equipment ZB2 menu in by " manual/auto " menu setting be " manual " pattern, at this moment permanent magnetism
Interconnection switch is fed then there is no power supply automatic switchover output function, the permanent magnetism feeds interconnection switch under " manual " pattern,
At this moment if U2, V2, W2 and U3, V3, W3 terminal and wire connection terminal L1, L2, L3 disconnected, permanent magnetism feeds interconnection switch with regard to phase
When in the Flameproof intrinsically safe vacuum and permanent magnet feeding switch of two, can independently using.
Above-mentioned is the state if the first low voltage vacuum circuit breaker for permanent 9 closes a floodgate under operation, similarly if second
Low voltage vacuum circuit breaker for permanent 10, which closes a floodgate, to be run, and all logic working states are same, that is to say, that permanent magnetism feed connection
First low voltage permanent magnetic vacuum feed leg of network switch, regardless of primary and secondary, is reciprocity pass with the second low voltage permanent magnetic vacuum feed leg
System.
Described first intelligent feeder protection equipment ZB1 includes the first power supply unit 11, the processing of the first output unit 12, first
13 and first communication unit 15 of device unit, the first processor unit 13 export single with the first power supply unit 11, first respectively
Member 12 is connected with the first communication unit 15, and it is defeated that the described second intelligent feeder protection equipment ZB2 includes second source unit 16, second
Go out unit 17,18 and second communication unit 20 of second processor unit, the second processor unit 18 respectively with second source
Unit 16, the second output unit 17 are connected with the second communication unit 20,11 and first power transformer of the first power supply unit
The leading-out terminal of T1 is connected, the first control terminal phase of first output unit 12 and the first low voltage vacuum circuit breaker for permanent 9
Even, first communication unit 15 feeds the communication terminal phase of master switch 7 with the second communication unit 20 and the first low-voltage vacuum respectively
Even, the second source unit 16 is connected with the leading-out terminal of second source transformer T2, second output unit 17 and second
First control terminal of low voltage vacuum circuit breaker for permanent 10 is connected, 20 and second low-voltage vacuum of the second communication unit feed
The communication terminal of master switch 8 is connected；The first intelligence feeder protection equipment ZB1 further includes the first display 14, and described first is aobvious
Show that device 14 is connected with first processor unit 13, the second intelligence feeder protection equipment ZB2 further includes second display 19, institute
Second display 19 is stated with second processor unit 18 to be connected；The end of incoming cables of the first power transformer T1 simultaneously connects the first permanent magnetism
Master switch 7 is fed by wire connection terminal U0, V0, W0 and the first low-voltage vacuum behind the end of incoming cables of mechanism low-voltage vacuum circuit breaker 9
Leading-out terminal is connected；The end of incoming cables of the second source transformer T2 simultaneously connects the inlet wire of the second low voltage vacuum circuit breaker for permanent 10
The leading-out terminal for feeding master switch 8 behind end with the second low-voltage vacuum by wire connection terminal U1, V1, W1 is connected；The wire connection terminal U0,
V0, W0, U2, V2, W2 are installed in an independent anti-explosion box body, and described wire connection terminal U1, V1, W1, U3, V3, W3 are installed on single
In an only anti-explosion box body, the public shell wall that described wire connection terminal L1, L2, L3 are installed on above-mentioned two explosion-proof wiring babinet is distinguished
It can be connected with U2, V2, W2 with U3, V3, W3 by flexible circuit conductor, first low voltage vacuum circuit breaker for permanent 9, the first intelligence
Energy feeder protection equipment ZB1, the first low voltage permanent magnetic vacuum feed leg of the first power transformer T1 compositions are installed concentratedly in list
In an only anti-explosion box body, the intelligent feeder protection equipment ZB2 of second low voltage vacuum circuit breaker for permanent 10, second, the
Second low voltage permanent magnetic vacuum feed leg of two power transformer T2 compositions is installed concentratedly in an independent anti-explosion box body；It is described
Anti-explosion box body meets the requirement of coal mine flame-proof intrinsic safety type equipment, and aforementioned four explosion-proof wiring box Combination Welding is pacified together
The explosion-resistant enclosure for forming colliery low pressure double loop dual power supply permanent magnetism feed interconnection switch circuit is prized mounted in common drags, on
State the requirement that explosion-resistant enclosure meets coal mine flame-proof intrinsic safety type equipment；The first intelligence feeder protection equipment ZB1 passes through
CAN communication line is connected with the second intelligence feeder protection equipment ZB2, and the communication terminal of the first low-voltage vacuum feed master switch 7 leads to
Cross RS485 connections with the first intelligence feeder protection equipment ZB1 to be connected, the communication of the second low-voltage vacuum feed master switch 8
End is connected by RS485 connections with the second intelligence feeder protection equipment ZB2, first colliery high voltage power supply 1 and the second coal
Ore deposit high voltage power supply 2 is 6KV high voltage power supplies, and first colliery high voltage power supply 1 and the second colliery high voltage power supply 2 are 10KV high
Voltage source.
The present invention can be promptly and accurately detection judge permanent magnetism feed interconnection switch working status, control the first permanent magnetic motor
The on/off switch working status of structure low-voltage vacuum circuit breaker 9, the second low voltage vacuum circuit breaker for permanent 10, ensures the first permanent magnetic motor
Structure low-voltage vacuum circuit breaker 9, the common load output end power of the second low voltage vacuum circuit breaker for permanent 10 are powered continuous
Property, security；Forbid loop switch to close a floodgate if load side fault trip is shut down, avoid secondary failure from damaging, if wherein
One source-side fault dead electricity or higher level trip, and then switching circuit closes a floodgate dead electricity, is colliery by the power supply output of another electric power loop
Safety in production bring guarantee, whole circuit structure is succinct, easy to install, and cost is relatively low, highly practical, reach colliery peace
The purpose produced entirely, has prominent substantive distinguishing features and significant progress；The embodiment of the present invention is made above in conjunction with attached drawing
Describe in detail, but the present invention is not limited to above-described embodiment, in the knowledge that those of ordinary skill in the art possess
It is interior, can also various changes can be made on the premise of present inventive concept is not departed from.
Claims (10)
1. colliery low pressure double loop dual power supply permanent magnetism feeds interconnection switch operating circuit, including the first electric power loop, second source
Circuit and permanent magnetism feed interconnection switch, it is characterised in that：First electric power loop includes the first colliery high voltage power supply（1）,
One mining high-explosive switch（3）, the first flameproof dry type transformer（5）Master switch is fed with the first low-voltage vacuum（7）, it is described
Second source circuit includes the second colliery high voltage power supply（2）, the second mining high-explosive switch（4）, the second flame-proof mine dry type become
Depressor（6）Master switch is fed with the second low-voltage vacuum（8）, the permanent magnetism, which feeds interconnection switch, includes the feedback of the first low voltage permanent magnetic vacuum
Electric branch, the second low voltage permanent magnetic vacuum feed leg and wire connection terminal L1, L2, L3, the first low voltage permanent magnetic vacuum feed branch
Road includes the first low voltage vacuum circuit breaker for permanent（9）, the first power transformer T1, the first intelligent feeder protection equipment ZB1
With wire connection terminal U2, V2, W2, the second low voltage permanent magnetic vacuum feed leg includes the second low voltage vacuum circuit breaker for permanent
（10）, second source transformer T2, the second intelligence feeder protection equipment ZB2 and wire connection terminal U3, V3, W3；
First low-voltage vacuum feeds master switch（7）End of incoming cables be sequentially connected in series the first flameproof dry type transformer（5）
With the first mining high-explosive switch（3）Afterwards with the first colliery high voltage power supply（1）It is connected, first low-voltage vacuum feeds master switch
（7）Communication terminal be connected with the first intelligence feeder protection equipment ZB1, the first intelligent feeder protection equipment ZB1 also respectively with
First low voltage vacuum circuit breaker for permanent（9）The first control terminal be connected with the leading-out terminal of the first power transformer T1, it is described
The end of incoming cables of first power transformer T1 simultaneously connects the first low voltage vacuum circuit breaker for permanent（9）End of incoming cables after with the first low pressure
Vacuum feeds master switch（7）Leading-out terminal be connected, first low voltage vacuum circuit breaker for permanent（9）Leading-out terminal and wiring
Terminal U2, V2, W2 are connected；Second low-voltage vacuum feeds master switch（8）End of incoming cables be sequentially connected in series the second flame-proof mine
Dry-type transformer（6）With the second mining high-explosive switch（4）Afterwards with the second colliery high voltage power supply（2）It is connected, second low pressure is true
Sky feed master switch（8）Communication terminal be connected with the second intelligence feeder protection equipment ZB2, the second intelligent feeder protection equipment
ZB2 also respectively with the second low voltage vacuum circuit breaker for permanent（10）The first control terminal and second source transformer T2 outlet
End is connected, and the end of incoming cables of the second source transformer T2 simultaneously connects the second low voltage vacuum circuit breaker for permanent（10）End of incoming cables
Afterwards master switch is fed with the second low-voltage vacuum（8）Leading-out terminal be connected, second low voltage vacuum circuit breaker for permanent（10）
Leading-out terminal be connected with wire connection terminal U3, V3, W3；First low voltage vacuum circuit breaker for permanent（9）The second control terminal
It is connected with the second intelligence feeder protection equipment ZB2, second low voltage vacuum circuit breaker for permanent（10）The second control terminal
Be connected with the first intelligence feeder protection equipment ZB1, the first intelligent feeder protection equipment ZB1 also with the second intelligent feed protection
Device ZB2 is connected, and described wire connection terminal U2, V2, W2 and wire connection terminal U3, V3, W3 are connected with wire connection terminal L1, L2, L3.
2. colliery low pressure double loop dual power supply permanent magnetism according to claim 1 feeds interconnection switch operating circuit, its feature
It is：The first intelligence feeder protection equipment ZB1 includes the first power supply unit（11）, the first output unit（12）, at first
Manage device unit（13）With the first communication unit（15）, the first processor unit（13）Respectively with the first power supply unit（11）、
First output unit（12）With the first communication unit（15）It is connected, the described second intelligent feeder protection equipment ZB2 includes the second electricity
Source unit（16）, the second output unit（17）, second processor unit（18）With the second communication unit（20）, the second processing
Device unit（18）Respectively with second source unit（16）, the second output unit（17）With the second communication unit（20）It is connected, it is described
First power supply unit（11）It is connected with the leading-out terminal of the first power transformer T1, first output unit（12）With the first permanent magnetism
Mechanism low-voltage vacuum circuit breaker（9）The first control terminal be connected, first communication unit（15）Respectively with the second communication unit
（20）Master switch is fed with the first low-voltage vacuum（7）Communication terminal be connected, the second source unit（16）Become with second source
The leading-out terminal of depressor T2 is connected, second output unit（17）With the second low voltage vacuum circuit breaker for permanent（10）First
Control terminal is connected, second communication unit（20）Master switch is fed with the second low-voltage vacuum（8）Communication terminal be connected.
3. colliery low pressure double loop dual power supply permanent magnetism according to claim 2 feeds interconnection switch operating circuit, its feature
It is：The first intelligence feeder protection equipment ZB1 further includes the first display（14）, first display（14）With first
Processor unit（13）It is connected, the second intelligence feeder protection equipment ZB2 further includes second display（19）, described second is aobvious
Show device（19）With second processor unit（18）It is connected.
4. colliery low pressure double loop dual power supply permanent magnetism according to claim 1 feeds interconnection switch operating circuit, its feature
It is：The end of incoming cables of the first power transformer T1 simultaneously connects the first low voltage vacuum circuit breaker for permanent（9）End of incoming cables after
Master switch is fed by wire connection terminal U0, V0, W0 and the first low-voltage vacuum（7）Leading-out terminal be connected.
5. colliery low pressure double loop dual power supply permanent magnetism according to claim 1 feeds interconnection switch operating circuit, its feature
It is：The end of incoming cables of the second source transformer T2 simultaneously connects the second low voltage vacuum circuit breaker for permanent（10）End of incoming cables after
Master switch is fed by wire connection terminal U1, V1, W1 and the second low-voltage vacuum（8）Leading-out terminal be connected.
6. colliery low pressure double loop dual power supply permanent magnetism according to claim 1 feeds interconnection switch operating circuit, its feature
It is：The first intelligence feeder protection equipment ZB1 is connected by CAN communication line with the second intelligence feeder protection equipment ZB2.
7. colliery low pressure double loop dual power supply permanent magnetism according to claim 1 feeds interconnection switch operating circuit, its feature
It is：First low-voltage vacuum feeds master switch（7）Communication terminal pass through RS485 connections and the first intelligent feed protection fills
ZB1 is put to be connected.
8. colliery low pressure double loop dual power supply permanent magnetism according to claim 1 feeds interconnection switch operating circuit, its feature
It is：Second low-voltage vacuum feeds master switch（8）Communication terminal pass through RS485 connections and the second intelligent feed protection fills
ZB2 is put to be connected.
9. colliery low pressure double loop dual power supply permanent magnetism according to claim 1 feeds interconnection switch operating circuit, its feature
It is：First colliery high voltage power supply（1）With the second colliery high voltage power supply（2）It is 6KV high voltage power supplies.
10. colliery low pressure double loop dual power supply permanent magnetism according to claim 1 feeds interconnection switch operating circuit, its feature
It is：First colliery high voltage power supply（1）With the second colliery high voltage power supply（2）It is 10KV high voltage power supplies.
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| CN201510282961.0A CN104967206B (en) | 2015-05-29 | 2015-05-29 | Colliery low pressure double loop dual power supply permanent magnetism feed interconnection switch operating circuit |
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| CN201510282961.0A CN104967206B (en) | 2015-05-29 | 2015-05-29 | Colliery low pressure double loop dual power supply permanent magnetism feed interconnection switch operating circuit |
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| CN104967206B true CN104967206B (en) | 2018-04-17 |
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| CN105429284A (en) * | 2015-12-11 | 2016-03-23 | 深圳市国立智能电力科技有限公司 | Grid power supply switching system |
| CN105846723A (en) * | 2016-04-29 | 2016-08-10 | 山西际安电气有限公司 | Mine explosive-proof intrinsically safe dual-circuit vacuum electromagnetic starter |
| CN109347195A (en) * | 2018-10-31 | 2019-02-15 | 山西际安电气有限公司 | Coal mine low-voltage flameproof type dual power supply control device |
| CN109856334A (en) * | 2019-02-01 | 2019-06-07 | 中国石油天然气集团公司 | A kind of real-time analytical equipment of gas pipeline hydrogen sulfide |
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| CN104967206A (en) | 2015-10-07 |
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