CN206161806U - Take high, low temperature dropout intelligent test equipment of accuse circuit breaker - Google Patents

Take high, low temperature dropout intelligent test equipment of accuse circuit breaker Download PDF

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Publication number
CN206161806U
CN206161806U CN201621153623.3U CN201621153623U CN206161806U CN 206161806 U CN206161806 U CN 206161806U CN 201621153623 U CN201621153623 U CN 201621153623U CN 206161806 U CN206161806 U CN 206161806U
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China
Prior art keywords
test
breaker
current
cabinet
industrial
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CN201621153623.3U
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Chinese (zh)
Inventor
薛阳
张保亮
张蓬鹤
石二微
徐英辉
成达
熊德智
陈向群
袁瑞铭
李文文
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State Grid Corp of China SGCC
China Electric Power Research Institute Co Ltd CEPRI
Metering Center of State Grid Jibei Electric Power Co Ltd
Metering Center of State Grid Hunan Electric Power Co Ltd
Original Assignee
State Grid Corp of China SGCC
China Electric Power Research Institute Co Ltd CEPRI
Metering Center of State Grid Jibei Electric Power Co Ltd
Metering Center of State Grid Hunan Electric Power Co Ltd
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Application filed by State Grid Corp of China SGCC, China Electric Power Research Institute Co Ltd CEPRI, Metering Center of State Grid Jibei Electric Power Co Ltd, Metering Center of State Grid Hunan Electric Power Co Ltd filed Critical State Grid Corp of China SGCC
Priority to CN201621153623.3U priority Critical patent/CN206161806U/en
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Publication of CN206161806U publication Critical patent/CN206161806U/en
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Abstract

The utility model discloses a take high, low temperature dropout intelligent test equipment of accuse circuit breaker belongs to testing arrangement technical field. The utility model provides a testing capabilities dispersion of current standard attribute testing platform, low, the inside efficiency and accuracy who has inharmonic defect scheduling problem, improvement circuit breaker dropout test of test system of integrated level to a man -machine interface of it is tangible is provided. The utility model discloses a switch board and wiring cabinet, the cabinet of wherein working a telephone switchboard includes station frock clamp, standard test wire, temperature sensor and temperature sensing wire, control section includes test unit, industrial control computer, touch -sensitive screen, opens and stops button, experimental power. Test unit includes that protection switch, current booster, mutual -inductor, constant current source, chronograph, voltage power consumption acquisition module, multichannel temperature rise patrol and examine the appearance. The utility model is suitable for a taking the dropout test of controlling the circuit breaker, having characteristics such as the configuration is easy, fast, the fault rate low, easy operation, market prospect is wide.

Description

One kind takes control breaker high and low temperature dropout Intelligent test device
Technical field
The utility model is related to a kind of circuit breaker tripping test device, and especially one kind is taken control breaker high and low temperature and threaded off Intelligent test device, belongs to test device technical field.
Background technology
Low-voltage circuit breaker, is that one kind not only can be connected and disjunction normal duty electric current and overload electric current, can also be connect The device for switching of logical and disjunction short circuit current.Any moment of the breaker in making process, if protection act is connected tripping back Road, breaker can reliably disconnect, and be referred to as automatically jumping.Breaker with automatically jumping function, it is ensured that breaker During together in short trouble, can disconnect rapidly, it is to avoid expand accident scope.The electrical apparatus release type of breaker is divided into overcurrent release Device, under-voltage release, shunt release etc..Low-voltage circuit breaker in circuit except rise control action in addition to, also with certain guarantor Shield is threaded off, such as load, short circuit, under-voltage and electric leakage.According to the intelligentized demand of China's supply network, State Grid Corporation of China requires Supply network is intelligent.Therefore the end effector of supply network is needed --- expense control breaker performs upper end signal and possesses jump Lock, combined floodgate tripping function.Therefore the current development trend of low pressure expense control breaker be except possess traditional manual divide-shut brake and Over-current and -load is threaded off outer automatically, in addition it is also necessary to electronic divide-shut brake, and realize remotely control;Electric energy meter is especially combined, it is real Show arrearage automatic trip power-off and fill the tripping functions such as expense automatic closing electricity, this just proposes higher requirement to taking control breaker. At any moment of the breaker in making process, if protection act connects trip(ping) circuit, breaker can reliably disconnect, be referred to as Thread off.Breaker with tripping function, it is ensured that when breaker is together in short trouble, can disconnect rapidly, it is to avoid expand thing Therefore scope.The electrical apparatus release type of breaker is divided into overcurrent trip, under-voltage release, shunt release etc..
In order to ensure the product quality of breaker, must be with standard feature testing stand to miniature circuit breaker when breaker dispatches from the factory In 1.13 times of rated current, the macroscopic test electric current of designated time and 1.45 times of rated current, the high power of designated time test electricity The time for flowing down-current protection feature carries out detection check, traditional miniature circuit breaker standard feature testing stand have by one Individual experiment power supply is exported the test current of each test unit by secondary parallel, the switching of test period by time relay control, What is had also arranges experiment power supply by test unit, but commonly uses 50 hertz of AC low-tension sources, recommends by high power transistor composition Output test electric current.There is test function dispersion in traditional standard feature testing stand, integrated level is low, test system inside is present not The problems such as defect of coordination, fault rate is higher;Include the particularity of electronics, frame for movement due to taking this inside of control breaker, All its tripping characteristic can be had a significant impact under high temperature, cryogenic conditions;Simultaneously more manual intervention is needed, it is difficult to meet existing In generation, takes control breaker test request.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of expense control breaker high and low temperature dropout intelligence test and sets Standby, the high and low temperature dropout test function for solving existing standard features Testbed is separated, there is uncoordinated lacking inside test system Sunken the problems such as, simplify operating procedure.
In order to solve above-mentioned technical problem, the utility model provides one kind and takes control breaker high and low temperature dropout intelligent testing Examination equipment, including wiring cabinet and switch board, the wiring cabinet is separate with switch board part, and by holding wire phase between cabinet Even;
The wiring cabinet includes station frock clamp, code test wire, temperature sensor and TEMP wire;It is described Station frock clamp is located at the outer surface of the cabinet, for fixing tested breaker;The code test wire and the cabinet Between holding wire be connected, for sending or receiving the test signal of tested breaker;The temperature sensor is led by TEMP Holding wire is connected between line and the cabinet, for perceiving the temperature of tested breaker, and temperature information is sent to the switch board;
The switch board includes test unit, industrial PC, start-stop button and experiment power supply;
Holding wire is connected between the test unit and the cabinet, the electricity letter needed for for providing circuit breaker tripping test Number;
The industrial PC is connected with the communication module of test unit, for sending a control signal to test unit, or connects The test data that acceptance test unit is transmitted;
The start-stop button is arranged on the outer surface of the switch board, and the start and stop instruction for operator to be input into sends extremely The industrial PC;
The experiment power supply is connected with the test unit, the operating voltage or work electricity needed for for providing test unit Stream.
The wiring cabinet is built by skeleton and is supported, and surface is closed by panel.
The switch board is built by skeleton and is supported, and surface is closed by panel.
The switch board is provided with touch-screen, and is arranged on the outer surface of switch board, and is connected with industrial PC;The touch Screen provides the operation interface that can pass through touch input basic setup information, and by basic setup information transmission to industry control electricity Brain, industrial PC shows the real-time status of tested breaker by touch-screen.
Programmable controller PLC is provided with the industrial PC.
The test unit includes protection switch, current lifting device, transformer, constant-current source, calculagraph, voltage power consumption collection mould Block, multichannel temperature rise logging;
The protection switch located at test unit outside, for controlling the break-make of whole test unit circuit, prevent because The damage of the extremely caused test unit of test device or tested breaker;
The current lifting device is parallel to protection switch, for verifying current transformer ratio;
The transformer is connected with the output end of current lifting device, for measuring and protection test unit;
The first interface of the constant-current source is connected with protection switch, and second interface is connected with current lifting device, the 3rd interface with it is mutual Sensor is connected, and the 4th interface is connected with calculagraph, voltage power consumption collection module, multichannel temperature rise logging;The constant-current source is used for The base current of all parts in test unit is provided;
The calculagraph is connected with the 4th interface of constant-current source, for the record of testing time;
The voltage power consumption collection module is connected with the 4th interface of constant-current source, for tested breaker in process of the test The collection of power consumption;
The multichannel temperature rise logging is connected with the 4th interface of constant-current source, for tested breaker temperature in process of the test Record and display.
The experiment power supply is made up of variable ratio frequency changer current source, by the industrial PC set position, time, multiple, and Experiment power supply is calibrated.
The station frock clamp is provided with crimping handle.
Wiring cabinet of the present utility model is built using skeleton with panel, improves the structural stability of equipment.
Switch board of the present utility model is built using skeleton with panel, improves the structural stability of equipment.
The utility model is provided with programmable controller PLC, and PLC is loaded with PID softwares control formula, to accelerate to test Journey, is precisely controlled frequency, amplitude, the phase place of test voltage or electric current, is conducive to improving measuring accuracy.
The utility model is provided with touch-screen on switch board, completes to test basic setup and the real-time display of test mode, Easy to operate, man-machine interaction is preferable.
Test unit of the present utility model has the universal architecture for completing the dropout test of breaker high and low temperature, with preferable Functions expanding with compatibility.
Protection switch is provided with test unit of the present utility model, the break-make of whole test unit circuit is automatically controlled, is prevented Only because of the damage of the extremely caused test unit of test device or tested breaker.
The utility model from frequency conversion current source as experiment power supply, can according to test need to select different gears, Time, multiple, are conducive to improving measuring accuracy, strengthen compatibility of the present utility model.
Station frock clamp of the present utility model is provided with crimping handle, facilitates the fixation of tested breaker and takes out.
The utility model by wiring cabinet in combination with switch board, simple structure, easy to operate, man-machine interaction and automation Degree is higher, and integrated high and low temperature dropout test function is in one:Instantaneous trip performance test, short-circuit Interruption test, high temperature Trip-gear, low temperature trip-gear etc.;And support the test of different model breaker, with improving test speed with test essence Spend, protect tested breaker etc. to act on.
Description of the drawings
Fig. 1 is wiring cabinet external structure of the present utility model;Fig. 2 is switch board external structure of the present utility model; Fig. 3 is the internal structure line map of test unit described in the utility model;
In figure:1. wiring cabinet, 2. station frock clamp, 3. insulation board, 4. switch board, 5. touch-screen, 6. start-stop button, 7. protection switch, 8. current lifting device, 9. transformer, the 10. output end of test unit, 11. constant-current sources, 12. calculagraphs, 13. Voltage power consumption collection module, 14. multichannel temperature rise loggings, 15. communication modules.
Specific embodiment
Below in conjunction with the accompanying drawings the utility model is described in further detail with specific embodiment, so that those skilled in the art The utility model may be better understood and can be practiced, but illustrated embodiment is not as to restriction of the present utility model.
Embodiment 1:
Referring to the drawings 1 with accompanying drawing 2, the present embodiment is mainly made up of wiring cabinet 1 with switch board 4, wiring cabinet 1 and switch board 4 For two independent cabinets, it is connected by holding wire between cabinet;Switch board 4 sends test signal to wiring cabinet by holding wire between cabinet 1, wiring cabinet 1 sends the status signal of tested breaker to switch board 4 by holding wire between cabinet.Wiring cabinet 1 and switch board 4 Cabinet is built and is supported using aluminium alloy extrusions skeleton, and cabinet surface is closed with stainless steel faceplate.Connection part includes 15 Station frock clamp 2,3,15 code test wires of insulation board, 15 temperature sensors are led with 15 TEMPs Line;Wherein insulation board 3 is arranged on the outer side panel of wiring cabinet 1, and station frock clamp 2 is on insulation board 3;Code test wire In insulation board 3, and holding wire is connected between cabinet;Station frock clamp 2 is used to for tested breaker to be fixed on wiring cabinet 1 On, insulation board 3 is used to prevent the electric leakage of wiring cabinet 1, code test wire to be used to test signal is transmitted to tested breaker.Temperature Degree sensor is connected by TEMP wire with holding wire between cabinet, for perceiving the real time temperature of tested breaker.Control unit Dividing includes 15 test units, industrial PC, touch-screen 5, start-stop button 6 and ten variable ratio frequency changer current sources.Select wherein one The output end 10 of individual test unit is connected with holding wire between cabinet;Industrial PC is set up with the communication module 15 of test unit and is connected; Start-stop button 6 is arranged on the outer side panel of switch board, and is connected with industrial PC by start stop signal line.Select one of them Variable ratio frequency changer current source is connected by experiment power supply line with test unit, and variable ratio frequency changer current source is by power command line and industrial PC It is connected.Touch-screen 5 is arranged on the outer side panel of switch board 4, and is connected with the man-machine interface of industrial PC.Set in industrial PC There is programmable controller PLC, PLC is loaded with PID softwares control formula, for controlling the output of test signal.Referring to the drawings 3, Each test unit is made up of electricity device and its connecting wire, including protection switch 7, current lifting device 8, transformer 9, constant-current source 11st, calculagraph 12, voltage power consumption collection module 13, multichannel temperature rise logging 14, communication module 15.Protection switch 7 is located at test The outside of unit, for controlling the break-make of whole test unit circuit, prevent because of the extremely caused test unit of test device or The damage of tested breaker.Current lifting device 8 is parallel to protection switch 7, for verifying the no-load voltage ratio of current transformer 9;Transformer 9 and up-flow The output end of device 8 is connected, for measuring and protection test unit.The first interface of constant-current source 11 is connected with protection switch 7, constant current The second interface in source 11 is connected with current lifting device 8, and the 3rd interface of constant-current source 11 is connected with transformer 9, and the 4th of constant-current source 11 connects Mouth is connected with calculagraph 12, voltage power consumption collection module 13, multichannel temperature rise logging 14, communication module 15.Constant-current source 11 is used for The base current of all parts in test unit is provided;Calculagraph 12 is used for the record of testing time;Voltage power consumption collection module 13 collections for being used for the power consumption of tested breaker in process of the test;Multichannel temperature rise logging 14 is used for tested open circuit in process of the test The record of device temperature and display.All of input/output interface adopts RS-232 communication standards in the present embodiment.
Utility model works flow process is as follows:First, by equipment be placed on range of temperature be -40 DEG C -85 DEG C can In heightening low temperature alternation incubator.Each station is parallel way wiring according to 2P switch wire connection modes, between station, switchs the two poles of the earth Between electric current adopt series system.Electric current is introduced using each pole series system, meets the test of maximum 1.45 times of rated current;Open Close using installing up and down, copper contact and silver point structure are fixed in current outlet lower end using bottom, per pole copper contact termination pressure contact portion Position opening, cut-in temperature sensor.Specification, model according to tested breaker, adjustment station frock clamp 2 so that tested disconnected Road device is placed in tune with the test station of wiring cabinet 1 and is fixed by crimping handle.Specification, model according to tested breaker, selects Corresponding code test wire, and be connected with the signal end of tested breaker;Temperature sensor is fixed on into tested breaker Surface.Operator is by the input test basic setup information of touch-screen 5;Rated current and verification times according to tested breaker Number, most suitable one is selected from ten variable ratio frequency changer current sources and is calibrated, subsequently arrange gear, time that test needs, times Number.Industrial PC carries out corresponding configuration to internal environment automatically according to the basic setup information that touch-screen 5 is sended over, and arranges The temperature inside the box is -40 DEG C, carries out the dropout test of breaker low temperature.Operator is pressed after start-stop button 6, and on-test, start and stop refer to Order is sent to industrial PC, while variable ratio frequency changer current source exports the operating current of setting to test unit;Industrial PC is to examination The communication module 15 of verification certificate unit sends real-time control information, and test unit to tested breaker sends initial minimum test signal. Current lifting device 8 is connected in the output of constant-current source 11 in test unit, and current lifting device 8 exports through transformer 9 to change size of current;Mutual inductance The output end of device 9(Secondary circuit)Connect the 5A current signals of constant-current source 11.The action signal of tested breaker is tried by standard Holding wire is tested between wire and cabinet to industrial PC, the temperature information of tested breaker is perceived by temperature sensor and sent to many Road temperature rise logging 14;Industrial PC is simultaneously shown the real-time status of tested breaker by touch-screen 5.At 1.13 times and Under the excitation of less than 1.13 times rated current, if trip action signal occurs in tested breaker, terminate current test, record The tested breaker " early to jump unqualified ", and test result is exported by touch-screen 5.Volume between 1.13 times to 1.45 times Under determining the excitation of electric current, if there is trip action signal in tested breaker, the tested breaker test passes, industrial PC The current test of end after current test signal and basic test information record, and test result is exported by touch-screen 5. If trip action signal does not occur in tested breaker, industrial PC to test unit sends new control information, test sheet Unit to tested breaker sends next stage test signal(The electric current of output is increased by certain increment), repeat the above steps, until There is trip action signal in tested breaker.If test unit is by test signal(Electric current)Increase to 1.45 times of specified electricity There is not all the time trip action signal in stream, tested breaker, then terminate current test, and " evening jumps not to record the tested breaker It is qualified ", and test result is exported by touch-screen 5.Due to extraneous factor during test(Such as temperature)Caused breaker is moved When making error, test result should be corrected according to actual conditions.After test terminates, testing stand automatically can protect test result In being stored to database.Then operator repeats the present embodiment step, carries out next test.
Embodiment 2:
Referring to the drawings 1 with accompanying drawing 2, the present embodiment is mainly made up of wiring cabinet 1 with switch board 4, wiring cabinet 1 and switch board 4 For two independent cabinets, it is connected by holding wire between cabinet;Switch board 4 sends test signal to wiring cabinet by holding wire between cabinet 1, wiring cabinet 1 sends the status signal of tested breaker to switch board 4 by holding wire between cabinet.Wiring cabinet 1 and switch board 4 Cabinet is built and is supported using aluminium alloy extrusions skeleton, and cabinet surface is closed with stainless steel faceplate.Connection part includes 15 Station frock clamp 2,3,15 code test wires of insulation board, 15 temperature sensors are led with 15 TEMPs Line;Wherein insulation board 3 is arranged on the outer side panel of wiring cabinet 1, and station frock clamp 2 is on insulation board 3;Code test wire In insulation board 3, and holding wire is connected between cabinet;Station frock clamp 2 is used to for tested breaker to be fixed on wiring cabinet 1 On, insulation board 3 is used to prevent the electric leakage of wiring cabinet 1, code test wire to be used to test signal is transmitted to tested breaker.Temperature Degree sensor is connected by TEMP wire with holding wire between cabinet, for perceiving the real time temperature of tested breaker.Control unit Dividing includes 15 test units, industrial PC, touch-screen 5, start-stop button 6 and ten variable ratio frequency changer current sources.Select wherein one The output end 10 of individual test unit is connected with holding wire between cabinet;Industrial PC is connected with the communication module 15 of test unit;Start and stop Button 6 is arranged on the outer side panel of switch board, is connected with industrial PC by start stop signal line.Select one of variable ratio frequency changer Current source is connected by experiment power supply line with test unit, and variable ratio frequency changer current source is connected by power command line with industrial PC. Touch-screen 5 is arranged on the outer side panel of switch board 4, and is connected with the man-machine interface of industrial PC.Number is provided with industrial PC Word signal processor DSP, DSP are loaded with PID softwares control formula, for controlling the output of test signal.Referring to the drawings 3, often Individual test unit is made up of electricity device and its connecting wire, including protection switch 7, current lifting device 8, transformer 9, constant-current source 11, Calculagraph 12, voltage power consumption collection module 13, multichannel temperature rise logging 14, communication module 15.Protection switch 7 is located at test unit Outside, for controlling the break-make of whole test unit circuit, prevent because of the extremely caused test unit or tested of test device The damage of breaker.Current lifting device 8 is parallel to protection switch 7, for verifying the no-load voltage ratio of current transformer 9;Transformer 9 and current lifting device 8 Output end be connected, for measure with protection test unit.The first interface of constant-current source 11 is connected with protection switch 7, constant-current source 11 second interface is connected with current lifting device 8, and the 3rd interface of constant-current source 11 is connected with transformer 9, the 4th interface of constant-current source 11 It is connected with calculagraph 12, voltage power consumption collection module 13, multichannel temperature rise logging 14, communication module 15.Constant-current source 11 is used to carry For the base current of all parts in test unit;Calculagraph 12 is used for the record of testing time;Voltage power consumption collection module 13 For the collection of the power consumption of tested breaker in process of the test;Multichannel temperature rise logging 14 is used for tested breaker in process of the test The record of temperature and display.All of input/output interface adopts RS-485 communication standards in the present embodiment.
Utility model works flow process is as follows:First, by equipment be placed on range of temperature be -40 DEG C -85 DEG C can In heightening low temperature alternation incubator.Each station is parallel way wiring according to 2P switch wire connection modes, between station, switchs the two poles of the earth Between electric current adopt series system.Electric current is introduced using each pole series system, meets the test of maximum 1.45 times of rated current;Open Close using installing up and down, copper contact and silver point structure are fixed in current outlet lower end using bottom, per pole copper contact termination pressure contact portion Position opening, cut-in temperature sensor.Specification, model according to tested breaker, adjustment station frock clamp 2 so that tested disconnected Road device is placed in tune with the test station of wiring cabinet 1 and is fixed by crimping handle.Specification, model according to tested breaker, choosing Corresponding code test wire is selected, and is connected with the signal end of tested breaker;Temperature sensor is fixed on into tested breaker Surface.Operator is by the input test basic setup information of touch-screen 5;Rated current and verification times according to tested breaker Number, most suitable one is selected from ten variable ratio frequency changer current sources and is calibrated, subsequently arrange gear, time that test needs, times Number.Industrial PC carries out corresponding configuration to internal environment automatically according to the basic setup information that touch-screen 5 is sended over, and arranges The temperature inside the box is 85 DEG C, carries out the dropout test of breaker high temperature.Operator is pressed after start-stop button 6, on-test, start and stop instruction Industrial PC is sent to, while variable ratio frequency changer current source exports the operating current of setting to test unit;Industrial PC is to test The communication module 15 of unit sends real-time control information, and test unit to tested breaker sends initial minimum test signal.Examination Current lifting device 8 is connected in the output of constant-current source 11 in verification certificate unit, and current lifting device 8 exports through transformer 9 to change size of current;Transformer 9 output end(Secondary circuit)Connect the 5A current signals of constant-current source 11.The action signal of tested breaker passes through code test To industrial PC, the temperature information of tested breaker is perceived and sent to multichannel holding wire by temperature sensor between wire and cabinet Temperature rise logging 14;Industrial PC is simultaneously shown the real-time status of tested breaker by touch-screen 5.At 1.13 times and Under the excitation of less than 1.13 times rated current, if trip action signal occurs in tested breaker, terminate current test, record The tested breaker " early to jump unqualified ", and test result is exported by touch-screen 5.Volume between 1.13 times to 1.45 times Under determining the excitation of electric current, if there is trip action signal in tested breaker, the tested breaker test passes, industrial PC The current test of end after current test signal and basic test information record, and test result is exported by touch-screen 5. If trip action signal does not occur in tested breaker, industrial PC to test unit sends new control information, test sheet Unit to tested breaker sends next stage test signal(The electric current of output is increased by certain increment), repeat the above steps, until There is trip action signal in tested breaker.If test unit is by test signal(Electric current)Increase to 1.45 times of specified electricity There is not all the time trip action signal in stream, tested breaker, then terminate current test, and " evening jumps not to record the tested breaker It is qualified ", and test result is exported by touch-screen 5.Due to extraneous factor during test(Such as temperature)Caused breaker is moved When making error, test result should be corrected according to actual conditions.After test terminates, testing stand automatically can protect test result In being stored to database.Then operator repeats the present embodiment step, carries out next test.
Embodiment 3:
Referring to the drawings 1 with accompanying drawing 2, the present embodiment is mainly made up of wiring cabinet 1 with switch board 4, wiring cabinet 1 and switch board 4 For two independent cabinets, it is connected by holding wire between cabinet;Switch board 4 sends test signal to wiring cabinet by holding wire between cabinet 1, wiring cabinet 1 sends the status signal of tested breaker to switch board 4 by holding wire between cabinet.Wiring cabinet 1 and switch board 4 Cabinet is built using plastic skeleton and is supported, and cabinet surface is closed with panels of wood.Connection part includes 15 station frocks 2,15 code test wires of fixture, 15 temperature sensors and 15 TEMP wires;Wherein station frock is pressed from both sides Tool 2 is arranged on the outer side panel of wiring cabinet 1, and code test wire is connected with holding wire between cabinet;Station frock clamp 2 is used for will be by Survey breaker to be fixed on wiring cabinet 1, code test wire is used to test signal is transmitted to tested breaker.Temperature sensor It is connected with holding wire between cabinet by TEMP wire, for perceiving the real time temperature of tested breaker.Control section includes ten Five test units, industrial PC, touch-screen 5, start-stop button 6 and ten variable ratio frequency changer current sources.Select one of test sheet The output end 10 of unit is connected with holding wire between cabinet;Industrial PC is set up with the communication module 15 of test unit and is connected;Start-stop button 6 It is arranged on the outer side panel of switch board, and is connected with industrial PC by start stop signal line.Select one of variable ratio frequency changer electricity Stream source is connected by experiment power supply line with test unit, and variable ratio frequency changer current source is connected by power command line with industrial PC.Touch Touch screen 5 to be arranged on the outer side panel of switch board 4, and be connected with the man-machine interface of industrial PC.Being provided with industrial PC to compile Range controller PLC, PLC are loaded with PID softwares control formula, for controlling the output of test signal.Referring to the drawings 3, each examination Verification certificate unit is made up of electricity device and its connecting wire, including protection switch 7, current lifting device 8, transformer 9, constant-current source 11, timing Instrument 12, voltage power consumption collection module 13, multichannel temperature rise logging 14, communication module 15.Protection switch 7 is located at the outer of test unit Side, for controlling the break-make of whole test unit circuit, prevents because of the extremely caused test unit of test device or tested open circuit The damage of device.Current lifting device 8 is parallel to protection switch 7, for verifying the no-load voltage ratio of current transformer 9;Transformer 9 is defeated with current lifting device 8 Go out end to be connected, for measuring and protection test unit.The first interface of constant-current source 11 is connected with protection switch 7, constant-current source 11 Second interface is connected with current lifting device 8, and the 3rd interface of constant-current source 11 is connected with transformer 9, the 4th interface and the meter of constant-current source 11 When instrument 12, voltage power consumption collection module 13, multichannel temperature rise logging 14, communication module 15 be connected.Constant-current source 11 is used to provide examination The base current of all parts in verification certificate unit;Calculagraph 12 is used for the record of testing time;Voltage power consumption collection module 13 is used for The collection of the power consumption of tested breaker in process of the test;Multichannel temperature rise logging 14 is used for tested breaker temperature in process of the test Record and display.All of input/output interface adopts RS-232 communication standards in the present embodiment.
Utility model works flow process is as follows:First, by equipment be placed on range of temperature be -40 DEG C -85 DEG C can In heightening low temperature alternation incubator.Each station is parallel way wiring according to 2P switch wire connection modes, between station, switchs the two poles of the earth Between electric current adopt series system.Electric current is introduced using each pole series system, meets the test of maximum 1.45 times of rated current;Open Close using installing up and down, copper contact and silver point structure are fixed in current outlet lower end using bottom, per pole copper contact termination pressure contact portion Position opening, cut-in temperature sensor.Specification, model according to tested breaker, adjustment station frock clamp 2 so that tested disconnected Road device is placed in tune with the test station of wiring cabinet 1 and is fixed by crimping handle.Specification, model according to tested breaker, selects Corresponding code test wire, and be connected with the signal end of tested breaker;Temperature sensor is fixed on into tested breaker Surface.Operator is by the input test basic setup information of touch-screen 5;Rated current and verification times according to tested breaker Number, most suitable one is selected from ten variable ratio frequency changer current sources and is calibrated, subsequently arrange gear, time that test needs, times Number.Industrial PC carries out corresponding configuration to internal environment automatically according to the basic setup information that touch-screen 5 is sended over, and arranges The temperature inside the box is 25 DEG C, carries out the dropout test of breaker normal temperature.Operator is pressed after start-stop button 6, on-test, start and stop instruction Industrial PC is sent to, while variable ratio frequency changer current source exports the operating current of setting to test unit;Industrial PC is to test The communication module 15 of unit sends real-time control information, and test unit to tested breaker sends initial minimum test signal.Examination Current lifting device 8 is connected in the output of constant-current source 11 in verification certificate unit, and current lifting device 8 exports through transformer 9 to change size of current;Transformer 9 output end(Secondary circuit)Connect the 5A current signals of constant-current source 11.The action signal of tested breaker passes through code test To industrial PC, the temperature information of tested breaker is perceived and sent to multichannel holding wire by temperature sensor between wire and cabinet Temperature rise logging 14;Industrial PC is simultaneously shown the real-time status of tested breaker by touch-screen 5.At 1.13 times and Under the excitation of less than 1.13 times rated current, if trip action signal occurs in tested breaker, terminate current test, record The tested breaker " early to jump unqualified ", and test result is exported by touch-screen 5.Volume between 1.13 times to 1.45 times Under determining the excitation of electric current, if there is trip action signal in tested breaker, the tested breaker test passes, industrial PC The current test of end after current test signal and basic test information record, and test result is exported by touch-screen 5. If trip action signal does not occur in tested breaker, industrial PC to test unit sends new control information, test sheet Unit to tested breaker sends next stage test signal(The electric current of output is increased by certain increment), repeat the above steps, until There is trip action signal in tested breaker.If test unit is by test signal(Electric current)Increase to 1.45 times of specified electricity There is not all the time trip action signal in stream, tested breaker, then terminate current test, and " evening jumps not to record the tested breaker It is qualified ", and test result is exported by touch-screen 5.Due to extraneous factor during test(Such as temperature)Caused breaker is moved When making error, test result should be corrected according to actual conditions.Then operator repeats the present embodiment step, carries out next Individual test.
It is of the present utility model to have technical effect that:By presetting, industrial PC using programmable controller PLC with PID softwares control formula, significantly improve test rate;Be provided with multiple station frock clamps, wiring cabinet using it is a whole set of it is independent every From power supply, test job while effectively supporting different size, model breaker;Arrange temperature sensor to patrol and examine with multichannel temperature rise Instrument, accurately monitors the real time temperature of sample;Multiple test units are set, while completing the various tests of threading off of breaker;If There are multiple frequency conversion current sources, can be needed to select different gear, time, multiples according to test, be conducive to improving test of threading off Precision, enhancing compatibility of the present utility model.The utility model is particularly well-suited to the dropout test of expense control breaker automatically, has Rational in infrastructure, precision is good, inexpensive, efficiency high the advantages of, extensive market has good economic and social benefit.
Embodiment described above is only the preferred embodiment lifted to absolutely prove the utility model, the utility model Protection domain not limited to this.Equivalent substitute or change that those skilled in the art are made on the basis of the utility model Change, within protection domain of the present utility model.Protection domain of the present utility model is defined by claims.

Claims (8)

1. one kind takes control breaker high and low temperature dropout Intelligent test device, including wiring cabinet and switch board, it is characterised in that institute State wiring cabinet separate with switch board part, and be connected by holding wire between cabinet;
The wiring cabinet includes station frock clamp, code test wire, temperature sensor and TEMP wire;The station Frock clamp is located at the outer surface of the cabinet, for fixing tested breaker;Believe between the code test wire and the cabinet Number line is connected, for sending or receiving the test signal of tested breaker;The temperature sensor by TEMP wire with Holding wire is connected between the cabinet, for perceiving the temperature of tested breaker, and temperature information is sent to the switch board;
The switch board includes test unit, industrial PC, start-stop button and experiment power supply;
Holding wire is connected between the test unit and the cabinet, the electrical signal needed for for providing circuit breaker tripping test;
The industrial PC is connected with the communication module of test unit, for sending a control signal to test unit, or receives examination The test data that verification certificate unit is transmitted;
The start-stop button is arranged on the outer surface of the switch board, and the start and stop instruction for operator to be input into is sent to described Industrial PC;
The experiment power supply is connected with the test unit, the operating voltage or operating current needed for for providing test unit.
2. it is according to claim 1 to take control breaker high and low temperature dropout Intelligent test device, it is characterised in that described to connect Line cabinet is built by skeleton and is supported, and surface is closed by panel.
3. it is according to claim 1 to take control breaker high and low temperature dropout Intelligent test device, it is characterised in that the control Cabinet processed is built by skeleton and is supported, and surface is closed by panel.
4. it is according to claim 1 to take control breaker high and low temperature dropout Intelligent test device, it is characterised in that the control Cabinet processed is provided with touch-screen, and is arranged on the outer surface of switch board, and is connected with industrial PC;The touch-screen is provided can be by touching The operation interface of input basic setup information is touched, and by basic setup information transmission to the industrial PC, industrial PC will be by The real-time status for surveying breaker is shown by touch-screen.
5. it is according to claim 1 to take control breaker high and low temperature dropout Intelligent test device, it is characterised in that the work Programmable controller PLC is provided with control computer.
6. it is according to claim 1 to take control breaker high and low temperature dropout Intelligent test device, it is characterised in that the examination Verification certificate unit includes that protection switch, current lifting device, transformer, constant-current source, calculagraph, voltage power consumption collection module, multichannel temperature rise are patrolled and examined Instrument;
The protection switch, for controlling the break-make of whole test unit circuit, is prevented because of test located at the outside of test unit The damage of the extremely caused test unit of device or tested breaker;
The current lifting device is parallel to protection switch, for verifying current transformer ratio;
The transformer is connected with the output end of current lifting device, for measuring and protection test unit;
The first interface of the constant-current source is connected with protection switch, and second interface is connected with current lifting device, the 3rd interface and transformer It is connected, the 4th interface is connected with calculagraph, voltage power consumption collection module, multichannel temperature rise logging;The constant-current source is used to provide The base current of all parts in test unit;
The calculagraph is connected with the 4th interface of constant-current source, for the record of testing time;
The voltage power consumption collection module is connected with the 4th interface of constant-current source, for the power consumption of tested breaker in process of the test Collection;
The multichannel temperature rise logging is connected with the 4th interface of constant-current source, for the note of tested breaker temperature in process of the test Record and display.
7. it is according to claim 1 to take control breaker high and low temperature dropout Intelligent test device, it is characterised in that the examination Electrical verification source is made up of variable ratio frequency changer current source, by the industrial PC set position, time, multiple, and experiment power supply is carried out Calibration.
8. it is according to claim 1 to take control breaker high and low temperature dropout Intelligent test device, it is characterised in that the work Bit fixture clamp is provided with crimping handle.
CN201621153623.3U 2016-10-31 2016-10-31 Take high, low temperature dropout intelligent test equipment of accuse circuit breaker Active CN206161806U (en)

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Application Number Priority Date Filing Date Title
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110514997A (en) * 2019-09-10 2019-11-29 浙江华电器材检测研究所有限公司 A kind of detection device detecting breaker

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110514997A (en) * 2019-09-10 2019-11-29 浙江华电器材检测研究所有限公司 A kind of detection device detecting breaker
CN110514997B (en) * 2019-09-10 2021-06-11 浙江华电器材检测研究所有限公司 Detection device for detecting circuit breaker

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