CN114839527A - Circuit breaker detection device with power supply - Google Patents
Circuit breaker detection device with power supply Download PDFInfo
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- CN114839527A CN114839527A CN202210776041.4A CN202210776041A CN114839527A CN 114839527 A CN114839527 A CN 114839527A CN 202210776041 A CN202210776041 A CN 202210776041A CN 114839527 A CN114839527 A CN 114839527A
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- Prior art keywords
- circuit breaker
- energy storage
- switch
- breaker
- rectifier bridge
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/02—Circuit arrangements for ac mains or ac distribution networks using a single network for simultaneous distribution of power at different frequencies; using a single network for simultaneous distribution of ac power and of dc power
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0042—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
- H02J7/0045—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction concerning the insertion or the connection of the batteries
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
- H02J7/0048—Detection of remaining charge capacity or state of charge [SOC]
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Breakers (AREA)
Abstract
The invention relates to the field of electric power application, and particularly discloses a circuit breaker detection device with a power supply. The invention solves the problem that the test operation is time-consuming and labor-consuming due to no low-voltage power supply in the circuit breaker test or the newly installed circuit breaker, solves the problem that the power-off locking of the circuit breaker can not be removed by installing the battery in the detection device, has simple integral device and convenient operation, is convenient for a tester to use, can also shorten the test operation time and improve the test efficiency.
Description
Technical Field
The invention relates to the field of electric power application, in particular to a circuit breaker detection device with a power supply.
Background
In an electric power system, when a power transformation worker tests a handcart switch in a circuit breaker, the handcart switch in the circuit breaker is often required to be drawn out to a test position, however, due to the structural limitation of the circuit breaker, when the handcart switch is in a test position, the aviation plug on the handcart switch is usually in a taking-off state, the circuit breaker body loses the direct-current power supply in the state, so that the circuit breaker cannot store energy, the power-off lock cannot be released, the circuit breaker needs to be switched on and off, the stored energy of the spring operating mechanism of the circuit breaker can only meet one operation cycle of 'on-off-on-off', and then manual energy storage is needed before on-off operation again, when the circuit breaker is subjected to a manual opening and closing test and a mechanical characteristic test, the power-off locking is required to be manually released, the condition can prolong the maintenance operation time, and mechanical injury accidents are easily caused. In addition, when a newly-installed circuit breaker in a newly-built transformer substation is subjected to operation tests, mechanical property tests and other work, the problems that the circuit breaker cannot complete electric operation and only can be manually operated due to the fact that the secondary circuit of the circuit breaker is not connected completely, and the circuit breaker does not have alternating current and direct current power supplies are often caused, and the work efficiency of testers is greatly influenced.
Disclosure of Invention
In order to solve the problems in the existing breaker maintenance, the invention provides a breaker detection device with a power supply.
The technical scheme adopted by the invention for realizing the purpose is as follows: a circuit breaker detection device with a power supply comprises a power supply module, a rectifier bridge, a power switch, an internal and external trigger change-over switch, an alternating current and direct current change-over switch, an input voltmeter, an alternating current energy storage switch, a direct current energy storage switch, a voltage regulator, an output voltmeter, an output ammeter, a closing button, an opening button, a time relay and a signal power switch; wherein: one end of the internal and external trigger change-over switch is connected with the power supply module, and the other end of the internal and external trigger change-over switch is sequentially connected with the power switch and the alternating current-direct current change-over switch; the alternating current-direct current change-over switch is connected with the input voltmeter in parallel, and the other end of the alternating current-direct current change-over switch is connected with one end of the alternating current energy storage switch; the other end of the alternating current energy storage switch is connected with an alternating current energy storage live wire end of the circuit breaker and an alternating current energy storage zero line end of the circuit breaker; the alternating current-direct current change-over switch is also connected with the rectifier bridge; one end of the direct-current energy storage switch is connected with the rectifier bridge, and the other end of the direct-current energy storage switch is connected with the direct-current energy storage positive end of the circuit breaker; one end of the signal power switch is connected with the rectifier bridge, and the other end of the signal power switch is connected with the signal positive end of the circuit breaker; one end of the voltage regulator is connected with the rectifier bridge, and the other end of the voltage regulator is connected with the public negative electricity end of the circuit breaker; the output voltmeter is connected with the voltage regulator and the rectifier bridge; one end of the output ammeter is connected with the rectifier bridge, and the other end of the output ammeter is connected with one end of the closing button and one end of the opening button respectively; the other ends of the closing button and the opening button are connected with one end of a time relay; the other end of the time relay is connected with a closing positive end of the breaker and an opening positive end of the breaker.
Preferably, the rectifier bridge is an MDQ solid-state rectifier bridge, and is configured to output a rated dc voltage of 220V and a rated current of 100A.
Preferably, one end of the direct current energy storage switch is connected with the positive electrode of a direct current wiring terminal of the rectifier bridge, and the other end of the direct current energy storage switch is connected with a direct current energy storage positive terminal of the circuit breaker.
Preferably, the time relay is used for delaying the opening and closing functions, the setting time of the time relay is 1 second, and the time relay is a JS3G-4 type time relay.
Preferably, the device also comprises a working state indicator lamp, wherein the working state indicator lamp comprises a red closing indicator lamp, a green opening indicator lamp, a yellow energy storage in-place indicator lamp, a white working position indicator lamp and a blue test position indicator lamp, one end of the red closing indicator lamp is connected with the positive pole of the direct current wiring terminal of the rectifier bridge, the other end of the red closing indicator lamp is connected with a closing signal of the circuit breaker, one end of the green opening indicator lamp is connected with the positive pole of the direct current wiring terminal of the rectifier bridge, the other end of the green opening indicator lamp is connected with the opening signal of the circuit breaker, one end of the yellow energy storage in-place indicator lamp is connected with the positive pole of the direct current wiring terminal of the rectifier bridge, the other end of the yellow energy storage in-place indicator lamp is connected with the energy storage in-place signal of the circuit breaker, one end of the white working position indicator lamp is connected with the positive pole of the direct current wiring terminal of the rectifier bridge, the other end of the blue test position indicator lamp is connected with the positive pole of the direct current wiring terminal of the rectifier bridge, the other end is in signal connection with the test position of the circuit breaker.
Preferably, the direct current negative output line of the rectifier bridge is further connected with the circuit breaker signal negative end and the circuit breaker direct current energy storage negative end.
Preferably, still be equipped with the pressure regulating handle, the pressure regulating handle is connected with the voltage regulator, and the pressure regulating handle is used for controlling circuit breaker divide-shut brake voltage.
Preferably, a reserved control line plugging port is further arranged and comprises a breaker alternating current energy storage live wire connecting port, a breaker alternating current energy storage zero line connecting port, a breaker direct current energy storage positive electric connecting port, a breaker direct current energy storage negative electric connecting port, a breaker signal positive electric connecting port, a breaker signal negative electric connecting port, a breaker common negative electric connecting port, a breaker closing positive electric connecting port, a breaker opening positive electric connecting port, a breaker closing signal connecting port, a breaker opening signal connecting port, a breaker energy storage in-place signal connecting port, a breaker working position signal connecting port and a breaker test position signal connecting port.
Preferably, the detection device is further provided with a control line, the control line is connected with a reserved control line plug-in port arranged on the detection device, the control line is a 24-core multistrand annealed copper wire and comprises a section A and a section B, two ends of the section A of the control line are respectively a detection device end plug and a special test line clamp end, the detection device end plug of the section A of the control line is used for being connected with the reserved control line plug-in port of the detection device, the detection device end plug is provided with a positioning card, and the special test line clamp end of the section A of the control line is connected with a detachable crocodile clamp; the two ends of the section B of the control line are respectively an aviation plug connecting end and a special test line butt-joint end, the aviation plug connecting end of the section B of the control line comprises an aviation socket of a 10kV or 35kV handcart switch and is used for being connected with an external aviation plug in an inserting mode, and the special test line butt-joint end of the section B of the control line is used for being connected with a special test line clamp end of the section A of the control line.
Preferably, the power supply module comprises a storage battery and an external power supply; the detection device is characterized in that the detection device is further provided with an operation panel, the operation panel is provided with an electric quantity display screen and a storage battery charging socket, the electric quantity display screen and the storage battery charging socket are both connected with a storage battery, the electric quantity display screen is used for displaying the electric quantity of the storage battery, and the storage battery charging socket is used for charging the storage battery.
The circuit breaker detection device with the power supply solves the problems that the test operation is time-consuming and labor-consuming when the circuit breaker is tested or a circuit breaker is newly installed because a low-voltage power supply does not exist, solves the problem that the power-off locking of the circuit breaker cannot be removed by installing a battery in the detection device, is simple in whole device and convenient to operate, is convenient for a tester to use, can shorten the test operation time, and improves the test efficiency.
Drawings
Fig. 1 is a schematic diagram of an internal circuit structure of a circuit breaker detection device with a power supply according to an embodiment of the present invention.
In the figure: AC. A storage battery, AB, a rectifier bridge, QF,A power switch, an SBT1, an internal and external trigger switch, an SBT2, an AC/DC switch,
an input voltmeter, DK1, an AC energy storage switch, DK2, a DC energy storage switch, DK3, a signal power switch, R, a voltage regulator,
and an output voltmeter, wherein the output voltmeter,
the automatic switching-on device comprises an output ammeter, an SB1 switching-on button, an SB2 switching-off button, an SJ, a time relay, an HQ and red switching-on indicator lamp, a TQ and green switching-off indicator lamp, a CQ and yellow energy storage in-place indicator lamp, a WQ and white working position indicator lamp, an SQ and blue test position indicator lamp.
Detailed Description
The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
Example 1
The circuit breaker detection device with the power supply comprises a power supply module, a rectifier bridge AB, a power switch QF, an internal and external trigger switch SBT1, an alternating current and direct current switch SBT2 and an input voltmeter
An AC energy storage switch DK1, a DC energy storage switch DK2, a voltage regulator R and an output voltmeter
Output current meter
The system comprises a closing button SB1, an opening button SB2, a time relay SJ and a signal power switch DK 3; the power supply module can comprise a storage battery AC and an external power supply, one end of an internal and external trigger switch SBT1 andthe storage battery AC or an external power supply is connected, and the other end of the internal and external trigger switch SBT1 is sequentially connected with a power switch QF and an alternating current-direct current switch SBT 2; alternating current-direct current change-over switch SBT2 and input voltmeter
The other end of the alternating current and direct current switch SBT2 is connected with one end of an alternating current energy storage switch DK1 in parallel; the other end of the alternating current energy storage switch DK1 is connected with an alternating current energy storage live wire end of the circuit breaker and an alternating current energy storage zero line end of the circuit breaker; the alternating current-direct current changeover switch SBT2 is also connected with the rectifier bridge AB; one end of a direct current energy storage switch DK2 is connected with a rectifier bridge AB, and the other end of the direct current energy storage switch DK2 is connected with a direct current energy storage positive end of a circuit breaker; one end of a signal power switch DK3 is connected with a rectifier bridge AB, and the other end is connected with a signal positive end of a circuit breaker; one end of the voltage regulator R is connected with the rectifier bridge AB, and the other end of the voltage regulator R is connected with the public negative electricity end of the circuit breaker; output voltmeter
Is connected with the voltage regulator R and the rectifier bridge AB; output current meter
One end of the rectifier bridge AB is connected with the rectifier bridge AB, and the other end of the rectifier bridge AB is connected with one end of a closing button SB1 and one end of an opening button SB 2; the other ends of the closing button SB1 and the opening button SB2 are connected with one end of a time relay SJ; the other end of the time relay is connected with a closing positive end of the breaker and an opening positive end of the breaker.
This device can use 220V alternating current power supply as working power supply, the device is equipped with the box, battery AC is located inside the box, battery AC can be 220V alternating current storage battery, can external power supply or direct off-line output 220V's alternating current working power supply, it is specific, 220V alternating current storage battery's capacity can be 13000mAh, rated power can be 3500W, instantaneous power can be 7000W, the size can be 255 x 162 x 150mm, the electric core that 220V alternating current storage battery can be is lithium ion battery cell. The device still is equipped with operating panel, operating panel is equipped with electric quantity display screen and battery charging socket, electric quantity display screen and battery charging socket all are connected with battery AC, the electric quantity display screen is used for showing battery AC's electric quantity, the electric quantity display screen can be the LED display screen, positive and negative wiring end has, possess the transposition function, battery charging socket charges for battery AC, battery charging socket can be article word socket, rated voltage can be for exchanging 220V, rated current can be for 100A. The alternating current power supply socket is used for being externally connected with a working power supply, can be a delta socket, can have a rated voltage of 220V and can have a rated current of 100A.
The rectifier bridge AB can be an MDQ solid-state rectifier bridge and is used for outputting rated direct-current voltage of 220V and rated current of 100A and meeting the power supply requirements required by energy storage and operation of various types of circuit breakers, specifically, the load current of the MDQ solid-state rectifier bridge can be 100A, the withstand voltage value can be 1600V, and a radiator can be additionally arranged on the MDQ solid-state rectifier bridge. And a direct current negative electrode output circuit of the rectifier bridge AB is also connected with a circuit breaker signal negative end and a circuit breaker direct current energy storage negative end. The power switch QF is used for switching on and switching off, the specific power switch QF model can be DZY2-1/2B, an AC220V air switch, the working voltage of the power switch QF can be alternating current 220V, and the rated current can be 100A. The internal and external trigger switch SBT1 can select external power or storage battery AC as an input power supply, the specific model of the internal and external trigger switch SBT1 can be two-gear on-off switch of LW26-20, the panel can be square, the rated current can be 160A, the alternating current and direct current switch SBT2 can select alternating current or direct current as power supply output, the specific model of the alternating current and direct current switch SBT2 can be two-gear on-off switch of LW26-20, the panel can be square, and the rated current can be 160A.
Input voltmeter
Can be a pointer type input voltmeter, the specific model can be CQR48, the measuring range is 0-400V, the precision grade is +/-2.5%, the working environment is-20-40 ℃, the shell is made of insulating flame-retardant materials, the size is 80 x 45mm, and the output voltmeter
Can be a pointer type output voltmeter, a specific modelThe measuring range of the CQR48 is 0-400V, the precision grade is +/-2.5%, the working environment is-20-40 ℃, the shell is made of insulating flame-retardant materials, the size is 80 × 45mm, and the output ammeter is arranged
Can be a pointer type output ammeter, the specific model can be CQR48, the measuring range is 0-100A, the precision grade is +/-2.5%, the working environment is-20-40 ℃, the shell is made of insulating flame-retardant material, the size is 80 x 45mm, and the input voltmeter is
Output voltmeter
And output current meter
The voltage regulator is used for monitoring input voltage and adjusting output voltage and current in time.
The specific model of the alternating current energy storage switch DK1 can be DZY2-1/2B, the alternating current air switch AC220V can be used as an air switch, the working voltage can be alternating current 220V, and the rated current can be 100A. One end of a direct current energy storage switch DK2 is connected with the positive electrode of a direct current wiring terminal of the rectifier bridge AB, the other end of the direct current energy storage switch DK2 is connected with a direct current energy storage positive terminal of the breaker, the specific model of the direct current energy storage switch DK2 can be DZY2-6/2G or a DC220V air switch, the working voltage can be direct current 220V, and the rated current can be 100A. The energy storage of the circuit breaker is realized through the on-off switch by the alternating current energy storage switch DK1 and the direct current energy storage switch DK2, and the energy storage power supply can be automatically disconnected through the return signal of the circuit breaker, so that the energy storage motor of the circuit breaker is prevented from being burnt out due to long-time work.
The local switching-on and switching-off of the breaker can be realized by pressing a switching-off button SB2 and a switching-on button SB1, specifically, the switching-on button SB1 can be a red self-resetting button switch, the model can be LA2-11, the rated voltage alternating current is 220V, the diameter of the button is 16mm, the switching-off button SB2 can be a green self-resetting button switch, the model can be LA2-11, the rated voltage direct current is 220V, and the diameter of the button is 16 mm. And the time relay SJ is respectively connected with a closing button SB1 and an opening button SB2, the time relay SJ is used for delaying opening and closing functions, the setting time of the time relay SJ is 1 second, and the specific model of the time relay SJ can be JS3G-4 type time relay.
The device is also provided with a working state indicator lamp which comprises a red closing indicator lamp HQ, a green opening indicator lamp TQ, a yellow energy storage in-place indicator lamp CQ, a white working position indicator lamp WQ and a blue test position indicator lamp SQ, wherein one end of the red closing indicator lamp HQ is connected with the positive pole of the direct current terminal of the rectifier bridge AB, the other end of the red closing indicator lamp HQ is connected with a closing signal of the circuit breaker, one end of the green opening indicator lamp TQ is connected with the positive pole of the direct current terminal of the rectifier bridge AB, the other end of the green opening indicator lamp TQ is connected with the opening signal of the circuit breaker, one end of the yellow energy storage in-place indicator lamp CQ is connected with the positive pole of the direct current terminal of the rectifier bridge AB, the other end of the yellow energy storage in-place indicator lamp CQ is connected with the energy storage in-place signal of the circuit breaker, one end of the white working position indicator lamp WQ is connected with the positive pole of the direct current terminal of the rectifier bridge AB, the other end of the blue test position indicator lamp SQ is connected with the positive pole of the direct current terminal of the rectifier bridge AB, the other end is in signal connection with the test position of the circuit breaker. Red combined floodgate pilot lamp HQ, green separating brake pilot lamp TQ, yellow energy storage pilot lamp CQ that targets in place, white operating position pilot lamp WQ and blue experimental position pilot lamp SQ all can be the LED pilot lamp, and specific model can be AD16-220DS, and the trompil aperture is 22mm, and lamp shade diameter 29mm, and rated voltage is direct current 220V.
The voltage regulator R is connected in series in a direct current negative electrode output line of the rectifier bridge AB, the input end of the voltage regulator R is connected with a direct current negative electricity output end of the rectifier bridge AB, and the output end of the voltage regulator R is connected with a common negative electricity terminal of the circuit breaker. The concrete model of voltage regulator R is eTM-605DF voltage regulator, and eTM-605DF voltage regulator is a single output high accuracy DC power supply, and is light small and exquisite, and this device still is equipped with the pressure regulating handle, and voltage regulator R is connected with the pressure regulating handle, and accessible pressure regulating handle realizes DC voltage's continuous adjustable, and the pressure regulating handle can be the current potential knob, and the knob adopts the design of polygonal limit, bakelite material, button cap diameter 20mm, height 17mm, hole 6 mm. The signal power switch DK3 can provide signal power for the position information of the switch, and the specific model of the signal power switch DK3 can be DZY2-6/2G, a DC220V air switch, the working voltage is DC220V, and the rated current is 100A.
This device still is equipped with and reserves control line grafting port, it includes circuit breaker alternating current energy storage live wire connection port to reserve control line grafting port, circuit breaker alternating current energy storage zero line connection port, the positive electricity of circuit breaker direct current energy storage connects the port, the negative electricity of circuit breaker direct current energy storage connects the port, the positive electricity of circuit breaker signal connects the port, the negative electricity of circuit breaker signal connects the port, the common negative electricity of circuit breaker connects the port, the positive electricity of circuit breaker combined floodgate connects the port, circuit breaker separating brake positive electricity end connection port, circuit breaker combined floodgate signal connection port, circuit breaker separating brake signal connection port, the signal connection port that the circuit breaker energy storage targets in place, circuit breaker operating position signal connection port and circuit breaker experimental position signal connection port. The specific model of the reserved control line plugging port can be a 24-core aviation waterproof connector socket of HDC-HDD-24.
The control line is connected with a reserved control line plug port arranged on the detection device, can be a 24-core multi-strand soft copper wire and also can be provided with an insulating sheath and an inner shield, the insulating sheath can be made of PVC insulating materials, the inner shield can be made of copper mesh shielding, various operation requirements are met, electromagnetic interference is reduced to the maximum extent, the control line comprises a section A and a section B, two ends of the section A of the control line are respectively a detection device end plug and a special test line clamping end, the detection device end plug of the section A of the control line is used for being connected with the reserved control line plug port, the detection device end plug is provided with a 24-pin plug matched with the reserved control line plug port, the detection device end plug is provided with a positioning card, equipment and the detection device can be prevented from being burnt and damaged due to plug-in errors, the special test line clamping end of the section A of the control line can be connected with a detachable crocodile clip and can be directly connected with a control loop of the circuit breaker, the crocodile clip can be a full-sheath crocodile clip with the length of 56mm and the opening of 10mm, and the tail part of the crocodile clip is provided with a 4mm socket, so that a lead can be quickly inserted and connected to perform energy storage control and opening and closing operations of the circuit breaker, and meanwhile, the crocodile clip can be prevented from falling off due to operation vibration; the aviation plug connecting end of the control line B section comprises 10kV, an aviation socket of a 35kV handcart switch and is used for being connected with an external aviation plug in an inserting mode, the specific model of the aviation socket can be JZ-24 switch cabinet aviation socket, 24 jacks with fixed positions are arranged on the aviation plug connecting end, the special test line connecting end of the control line B section is used for being connected with the special test line clamping end of the control line A section, the special test line clamping end can be provided with a welding-free plug with the diameter of 4mm, and the special test line connecting end can be provided with a welding-free socket with the diameter of 4 mm.
The box body and the internal elements can be uniformly grounded through the grounding terminal, the leakage is prevented from hurting people, meanwhile, the static induction of the transformer substation is prevented from damaging the detection device, the grounding terminal can be a black M5 x 48 pure copper binding post, and the maximum current can bear 30A. The box body can be a cubic structure, the size can be 500 × 300mm, the box body can be made of SUS304# stainless steel plates, and the side face of the box body is provided with a heat dissipation opening. The back of the box body is provided with a pull rod, so that the box body can be conveniently moved and carried, the pull rod can be 2 sections of nested stainless steel telescopic pull rods, the diameter of the pull rod is phi 20mm and phi 18mm, and each section of the pull rod is 300mm long. The box lower extreme is equipped with the gyro wheel, and the gyro wheel includes 2 universal wheels that take the locking function and 2 directional wheels that take the locking function, and the universal wheel can be the heavy universal wheel of 3 cun polyurethanes, and the directional wheel can be the heavy directional wheel of 3 cun polyurethanes.
Example 2
The specific circuit condition in the device box body can be as shown in fig. 1, the output wiring of the storage battery AC is connected with nodes 5 and 6 of the internal and external trigger switch SBT1, the external power supply is connected with nodes 2 and 4 of the internal and external trigger switch SBT1, 220V alternating current of the external power supply or the storage battery AC is selected through the internal and external trigger switch SBT1, the power switch QF is closed with the node 2 of the internal and external trigger switch SBT1 and is closed with the node 4 of the internal and external trigger switch SBT1 to be external power supply input, the power switch QF is closed with the node 5 of the internal and external trigger switch SBT1 and is closed with the node 6 of the internal and external trigger switch SBT1 to be storage battery AC input; the terminal of the power switch QF is connected in series between the internal and external trigger switch SBT1 and the alternating current-direct current switch SBT2 through a lead, and the port of the power switch QF is connected to the node 1 of the internal and external trigger switch SBT1 and the alternating current-direct current switch SBT2 node 7, an internal and external trigger switch SBT1 node 3 and an alternating current and direct current switch SBT2 node 9; input voltmeter
Connected in parallel across nodes 7 and 9 of the ac/dc switch SBT 2.
The alternating current and direct current change-over switch SBT2 can change over the voltage form of output, a node 8 and a node 10 of the alternating current and direct current change-over switch SBT2 are connected to an alternating current energy storage control terminal of the circuit breaker, and a node 11 and a node 12 of the alternating current and direct current change-over switch SBT2 are connected to the rectifier bridge AB; the rectifier bridge AB is provided with two direct current wiring terminals and two alternating current wiring terminals, the alternating current wiring terminals are connected with nodes 11 and 12 of an alternating current-direct current changeover switch SBT2 and used for outputting alternating current to the rectifier bridge AB to obtain rectified direct current; the alternating current and direct current switch SBT2 is closed at nodes 7 and 8, and is closed at nodes 9 and 10 to be alternating current, and is closed at nodes 7 and 11, and is closed at nodes 9 and 12 to be direct current; the negative pole of a direct current wiring terminal of the rectifier bridge AB is connected to the negative electric end of the breaker signal and the negative electric end of the breaker direct current energy storage, and the positive pole of the direct current wiring terminal is connected to the positive electric end of the breaker signal and the positive electric end of the breaker direct current energy storage; the voltage regulator R is connected in series in the direct current negative electrode output circuit of the rectifier bridge AB, the input end of the voltage regulator R is connected to the direct current negative electricity output end of the rectifier bridge AB, the output end of the voltage regulator R is connected to the common negative electricity end of the circuit breaker, and the voltage regulator R is further connected with the voltage regulating handle.
Output voltmeter
The direct current terminal is connected in parallel with the output end of the voltage regulator R and the positive electrode of the rectifier bridge AB direct current terminal; the direct-current energy storage switch DK2 is connected in series in the direct-current energy storage control loop, one end of the direct-current energy storage switch DK2 is connected to the positive electrode of the AB direct-current wiring terminal of the rectifier bridge, and the other end of the direct-current energy storage switch DK2 is connected to the direct-current energy storage positive end of the circuit breaker; the alternating current energy storage switch DK1 is connected in series in the alternating current energy storage control loop, one end of the alternating current energy storage switch DK1 is connected to nodes 8 and 10 of an alternating current-direct current change-over switch SBT2, and the other end of the alternating current energy storage switch DK1 is connected to an alternating current energy storage live wire end of the circuit breaker and an alternating current energy storage zero line end of the circuit breaker; one end of a signal power switch DK3 is connected to the positive pole of an AB direct current wiring terminal of the rectifier bridge, and the other end is connected to the positive end of a circuit breaker signal。
Output current meter
One end of the switch is connected with the positive electrode of a direct current terminal of the rectifier bridge AB, the other end of the switch is connected with a closing button SB1 and an opening button SB2, the closing button SB1 and the opening button SB2 are connected to a time relay SJ together, and the time relay SJ is provided with a contact switch and can break an opening and closing loop; the contact switch is connected to the closing positive end of the breaker and the opening positive end of the breaker.
Red combined floodgate pilot lamp HQ one end is connected with rectifier bridge AB's direct current binding post positive pole, the other end and circuit breaker combined floodgate signal connection, green separating brake pilot lamp TQ one end is connected with rectifier bridge AB's direct current binding post positive pole, the other end and circuit breaker separating brake signal connection, yellow energy storage pilot lamp CQ one end that targets in place is connected with rectifier bridge AB's direct current binding post positive pole, the other end and circuit breaker energy storage signal connection that targets in place, white operating position pilot lamp WQ one end is connected with rectifier bridge AB's direct current binding post positive pole, the other end and circuit breaker operating position signal connection, blue experimental position pilot lamp SQ one end is connected with rectifier bridge AB's direct current binding post positive pole, the other end and circuit breaker experimental position signal connection.
The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (10)
1. The circuit breaker detection device with the power supply is characterized by comprising a power supply module, a rectifier bridge (AB), a power switch (QF), an internal and external trigger switch (SBT 1), an alternating current-direct current switch (SBT 2) and an input voltmeter
The system comprises an alternating current energy storage switch (DK 1), a direct current energy storage switch (DK 2), a voltage regulator (R) and an output voltmeter
Output current meter
The switching-on button (SB 1), the switching-off button (SB 2), the time relay (SJ) and the signal power switch (DK 3); wherein:
one end of the internal and external trigger change-over switch (SBT 1) is connected with the power supply module, and the other end of the internal and external trigger change-over switch (SBT 1) is sequentially connected with the power switch (QF) and the alternating current-direct current change-over switch (SBT 2);
AC/DC switcher (SBT 2) and input voltmeter
The other end of the alternating current-direct current switch (SBT 2) is connected with one end of an alternating current energy storage switch (DK 1);
the other end of the alternating current energy storage switch (DK 1) is connected with an alternating current energy storage live wire end of the circuit breaker and an alternating current energy storage zero line end of the circuit breaker; the alternating current-direct current switch (SBT 2) is also connected with the rectifier bridge (AB);
one end of a direct current energy storage switch (DK 2) is connected with the rectifier bridge (AB), and the other end is connected with the direct current energy storage positive end of the breaker;
one end of a signal power switch (DK 3) is connected with the rectifier bridge (AB), and the other end is connected with the signal positive end of the breaker; one end of the voltage regulator (R) is connected with the rectifier bridge (AB), and the other end of the voltage regulator (R) is connected with the public negative electricity end of the circuit breaker;
the output voltmeter
Is connected with a voltage regulator (R) and a rectifier bridge (AB); output current meter
One end of the rectifier bridge (AB) is connected, and the other end of the rectifier bridge (AB) is connected with one end of a closing button (SB 1) and one end of an opening button (SB 2) respectively;
the other ends of the closing button (SB 1) and the opening button (SB 2) are connected with one end of a time relay (SJ);
the other end of the time relay is connected with a closing positive end of the breaker and an opening positive end of the breaker.
2. The circuit breaker detection device with power supply according to claim 1, characterized in that the rectifier bridge (AB) is an MDQ solid-state rectifier bridge for outputting a rated dc voltage of 220V and a rated current of 100A.
3. The circuit breaker detection device with a power supply as claimed in claim 1, wherein the dc energy storage switch (DK 2) has one end connected to the positive pole of the dc connection terminal of the rectifier bridge (AB) and the other end connected to the positive dc energy storage terminal of the circuit breaker.
4. The apparatus of claim 1, wherein the time relay (SJ) is configured to delay the opening and closing of the switch, the setting time of the time relay (SJ) is 1 second, and the time relay (SJ) is a JS3G-4 type time relay.
5. The apparatus of claim 1, further comprising a working status indicator lamp including a red closing indicator lamp (HQ), a green opening indicator lamp (TQ), a yellow energy storage in-place indicator lamp (CQ), a white working position indicator lamp (WQ) and a blue test position indicator lamp (SQ), wherein one end of the red closing indicator lamp (HQ) is connected to the positive electrode of the DC terminal of the rectifier bridge (AB), the other end of the red closing indicator lamp (HQ) is connected to the closing signal of the circuit breaker, one end of the green opening indicator lamp (TQ) is connected to the positive electrode of the DC terminal of the rectifier bridge (AB), the other end of the green opening indicator lamp (TQ) is connected to the opening signal of the circuit breaker, one end of the yellow energy storage in-place indicator lamp (CQ) is connected to the positive electrode of the DC terminal of the rectifier bridge (AB), the other end of the yellow energy storage in-place indicator lamp (WQ) is connected to the positive electrode of the DC terminal of the rectifier bridge (AB), the other end is in signal connection with the working position of the circuit breaker, one end of a blue test position indicator lamp (SQ) is in positive connection with a direct current wiring terminal of the rectifier bridge (AB), and the other end is in signal connection with the test position of the circuit breaker.
6. The circuit breaker detection device with the power supply as claimed in claim 1, wherein the dc negative output line of the rectifier bridge (AB) is further connected to a circuit breaker signal negative terminal and a circuit breaker dc energy storage negative terminal.
7. The circuit breaker detection device with the power supply as claimed in claim 1, wherein a voltage regulation handle is further provided, the voltage regulation handle is connected with the voltage regulator (R), and the voltage regulation handle is used for controlling the opening and closing voltage of the circuit breaker.
8. The device of claim 1, further comprising a reserved control line plug port, wherein the reserved control line plug port comprises a breaker ac energy storage live wire connection port, a breaker ac energy storage zero line connection port, a breaker dc energy storage positive electrical connection port, a breaker dc energy storage negative electrical connection port, a breaker signal positive electrical connection port, a breaker signal negative electrical connection port, a breaker common negative electrical connection port, a breaker closing positive electrical connection port, a breaker opening positive electrical connection port, a breaker closing signal connection port, a breaker opening signal connection port, a breaker energy storage in-place signal connection port, a breaker working position signal connection port, and a breaker testing position signal connection port.
9. The circuit breaker detection device with the power supply according to claim 8, wherein a control line is further provided, the control line is connected with a reserved control line plug port provided in the detection device, the control line is a 24-core stranded annealed copper wire, the control line comprises a section A and a section B, two ends of the section A of the control line are respectively a detection device end plug and a special test line clamp end, the detection device end plug of the section A of the control line is used for connecting the reserved control line plug port of the detection device, the detection device end plug is provided with a positioning card, and the special test line clamp end of the section A of the control line is connected with a detachable alligator clip; the two ends of the section B of the control line are respectively an aviation plug connecting end and a special test line butt-joint end, the aviation plug connecting end of the section B of the control line comprises an aviation socket of a 10kV or 35kV handcart switch and is used for being connected with an external aviation plug in an inserting mode, and the special test line butt-joint end of the section B of the control line is used for being connected with a special test line clamp end of the section A of the control line.
10. The circuit breaker detection apparatus with power supply of claim 1 wherein said power supply module comprises a battery (AC) and an external power source; the detection device is characterized in that the detection device is further provided with an operation panel, the operation panel is provided with an electric quantity display screen and a storage battery charging socket, the electric quantity display screen and the storage battery charging socket are connected with a storage battery (AC), the electric quantity display screen is used for displaying the electric quantity of the storage battery (AC), and the storage battery charging socket charges the storage battery (AC).
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| CN114839527B (en) | 2022-09-20 |
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