CN102841309A - Test device for circuit breaker - Google Patents

Test device for circuit breaker Download PDF

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Publication number
CN102841309A
CN102841309A CN2011101674722A CN201110167472A CN102841309A CN 102841309 A CN102841309 A CN 102841309A CN 2011101674722 A CN2011101674722 A CN 2011101674722A CN 201110167472 A CN201110167472 A CN 201110167472A CN 102841309 A CN102841309 A CN 102841309A
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CN
China
Prior art keywords
circuit
control
current
test
breaker testing
Prior art date
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Granted
Application number
CN2011101674722A
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Chinese (zh)
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CN102841309B (en
Inventor
李杨
高亦南
林方
周雪良
王鸿
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SUZHOU ANTAI TRANSFORMER CO Ltd
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SUZHOU ANTAI TRANSFORMER CO Ltd
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Priority to CN201110167472.2A priority Critical patent/CN102841309B/en
Publication of CN102841309A publication Critical patent/CN102841309A/en
Application granted granted Critical
Publication of CN102841309B publication Critical patent/CN102841309B/en
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Abstract

The invention discloses a test device for a circuit breaker. The test device is characterized in that the test device comprises a case, a control circuit and a PLC (Programmable Logic Controller), wherein the control circuit and the PLC are arranged in the case; the PLC is connected with the control circuit; the control circuit comprises a power supply transformer, a winding control device, a current monitoring device, load impedance and a circuit protecting device; the circuit protecting device is arranged at the primary terminal of the power supply transformer; and the winding control device, the current monitoring device and the load impedance are arranged at the secondary terminal of the power supply transformer.

Description

A kind of circuit-breaker testing device
Technical field
The present invention relates to a kind of electrical test equipment, be specifically related to a kind of circuit-breaker testing device.
Background technology
Along with the raising of daily life electrifing degree and the development of urban construction; Adopt high performance miniature circuit breaker more and more universal as the overload and the short-circuit protection of the electric wiring in dwelling house and the resemble construction thing and device and distribution terminal circuit and device; And isolating switch should National standard; Testing requirements in 28 days is satisfied in the testing requirements that conformance with standard manufactures a product.
A kind of circuit-breaker testing device need be provided for this reason; This device satisfies GB 10963.1-2005 electric accessories family expenses and similar site with overcurrent protection isolating switch first: the isolating switch that is used to exchange " test request of standard manufacture product; Can satisfy testing requirementss in 28 days of isolating switch; Isolating switch is carried out test in 28 days, and each cycle passes to rated current with the obstructed electric current of 3h is formed under the open-circuit voltage of 30V at least by 21h, and in the end one flows through during the electric current after the end; With 1.45 times the test current of rising to of current stabilization, record is threaded off actuation time in 5s.
Summary of the invention
For solving the problems of the technologies described above, the object of the present invention is to provide that a kind of loss is little, thermal value is low, efficient is high, simple to operate, have complete control and measuring ability, guarantee the circuit-breaker testing device of precision of test result and repeatability simultaneously.
For achieving the above object; Technical scheme of the present invention is following: a kind of circuit-breaker testing device; Comprise cabinet, control circuit and PLC controller; Said control circuit and said PLC controller are arranged in the said cabinet, and said PLC controller is connected with said control circuit, and said control circuit comprises power transformer, winding control device, current monitor, loaded impedance and circuit protection device; Said circuit protection device is arranged on the primary side of said power transformer, and said winding control device, current monitor and loaded impedance are arranged on the out secondary of said power transformer.
Preferably, said winding control device is two A.C. contactors, and said two A.C. contactor interlockings connect.
Preferably, said current monitor comprises current transformer and reometer, and said reometer is digital ammeter or mechanical type reometer.
Preferably, said loaded impedance is an adjustable resistance.
Preferably, also comprise parameter input device, said parameter input device is connected with said PLC controller.
Preferably, said parameter input device comprises touch man-machine interface and current sampling device.
Preferably, also comprise warning device, said warning device is connected with said PLC controller.
Preferably, said warning device is acoustic alarm device and/or light warning device.
Preferably, said cabinet is provided with radiator fan.
Preferably, also be provided with remote control, said remote control is connected with said PLC controller.
Adopt the beneficial effect of present technique scheme to be: loss is little, thermal value is low, efficient is high, simple to operate, have complete control and measuring ability, guarantee precision of test result and repeatability simultaneously.
Description of drawings
In order to be illustrated more clearly in the technical scheme in the embodiment of the invention technology; To do to introduce simply to the accompanying drawing of required use in the embodiment technical description below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is a structured flowchart of the present invention.
Fig. 2 is an electrical schematic diagram of the present invention.
Fig. 3 is control circuit figure of the present invention.
The numeral corresponding component title represented among the figure with letter:
QF. switch disconnector TM. power transformer KM1. A.C. contactor
KM2. A.C. contactor TA. current transformer A. reometer R. loaded impedance.
Embodiment
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
Embodiment 1:
As shown in Figure 1; Control circuit, PLC controller, parameter input device and warning device are arranged in the cabinet; Control circuit, parameter input device and warning device are connected with the PLC controller respectively; Parameter input device comprises man-machine interface and current sampling device, and man-machine interface is touch man-machine interface, and warning device is acoustic alarm device and light warning device.Also be provided with radiator fan on the cabinet, when the temperature in the cabinet reached 45 ℃, radiator fan started automatically, and when the temperature in the cabinet was lower than 45 ℃, radiator fan stopped automatically.
Shown in Figure 3; Control circuit comprises power transformer TM, winding control device, current monitor, loaded impedance R and circuit protection device; Circuit protection device is arranged on the primary side of power transformer TM, and winding control device, current monitor and loaded impedance R are provided with the out secondary of power transformer TM.The winding control device is two A.C. contactor KM1 and KM2, and A.C. contactor KM1 interlocking is connected with A.C. contactor KM2.Current monitor comprises current transformer TA and digital current Table A.Loaded impedance R is an adjustable resistance.Power transformer TM primary side is connected with the power supply of AC380V; Power transformer TM out secondary is wanted to be connected with test product, is provided with apparatus for protecting power supply at power transformer TM primary side, and apparatus for protecting power supply is switch disconnector QF; The protection control circuit plays overload protective function.
The power supply of AC380V is through power transformer TM output secondary voltage; Be output as the voltage of 32V and 1.45 * 32V; Out secondary at power transformer TM is provided with A.C. contactor KM1 and the KM2 that interlocking connects; KM1 and KM2 interlocked make TM level of power transformer be output as the conversion of 32V and two kinds of WVs of 1.45 * 32V realization with down; Out secondary at power transformer TM is provided with loaded impedance R simultaneously, and through being the adjusting resistance value of the loaded impedance R of adjustable resistance, the output current of control power transformer TM out secondary is effectively controlled working current; Out secondary at power transformer TM is provided with current transformer TA and digital current Table A, and the secondary output current of power transformer TM is monitored, and can from motion tracking, automatic steady current, detect automatically, automatically record according to setting value.When the change in impedance value of loaded impedance R causes working current to change, can effective monitoring to the size of working current.In the present embodiment, loaded impedance R is the adjustable resistance of resistance value 0.251-64 Ω; Current transformer TA is 0.2 grade a current transformer; The digital current Table A is 0.5 grade and gets digital ammeter; Switch disconnector QF is a 63A miniature circuit breaker D type, and working current is 0.5-125A and 1.45 * (0.5-125) A.
Adopt the PLC Programmable Logic Controller, reliability is high, and antijamming capability is strong, and volume is little; Energy consumption is low, has the digital quantity logic control, motion control, closed loop procedure control; Data processing, functions such as communication networking are accomplished conduction time, test current data acquisition, demonstration and control; Adopt touch man-machine interface, full Chinese interface is provided with succinctly, easy to operate, and abundant warning and diagnostic function is provided.
As shown in Figure 2; According to electrical schematic diagram; Principle of work is: in process of the test; The test product isolating switch is in closure state, and the circuit-breaker testing device carries out 28 days long run test through being the tests in 28 days that pass to rated current and the obstructed electric current of 3h under the open-circuit voltage of 32V of 21h by each cycle to the test product isolating switch.Control through the PLC controller under the open-circuit voltage of 32V of 21h and pass to rated current and the obstructed electric current of 3h.In the end one flow through finish during the electric current after, with 1.45 times the test current of rising to of current stabilization, record is threaded off actuation time in 5s.
In process of the test, if test product is threaded off, device record is automatically threaded off actuation time, and breaking circuit work, and acoustic alarm device and light warning device are reported to the police, and behind the closing test device, stop to report to the police.
After in the end one-period finishes, the work of winding control device, in 5s with the 1.45 times of test currents that rise to of current stabilization; The dropout timing picks up counting; The test product isolating switch was threaded off in the time of agreement, and device is the record drop-away time automatically, and breaking circuit work; Acoustic alarm device and light warning device are reported to the police simultaneously, behind the closing test device, stop to report to the police; If the test product isolating switch was not threaded off in the time of agreement, arrive the time of agreement, acoustic alarm device and light warning device are reported to the police; If closing test device not; Breaking circuit output behind the 60s, acoustic alarm device and light warning device continue to report to the police, and behind the closing test device, stop to report to the police.
Power transformer TM out secondary electric current surpasses 190A, stops output behind the test unit 5s, and acoustic alarm device and light warning device continue to report to the police, and behind the closing test device, stops to report to the police.
Test unit can only carry out the parameter setting under halted state, startup or halted state can not be carried out the parameter setting.
Embodiment 2:
All the other are identical with embodiment 1, and difference is that reometer is the mechanical type reometer.
Embodiment 3:
All the other are identical with embodiment 1, and difference is that the circuit-breaker testing device also is provided with remote control, use window-operating software through computing machine, can carry out remote control and remote measurement to device through network.
Adopt the beneficial effect of present technique scheme to be: loss is little, thermal value is low, efficient is high, simple to operate, have complete control and measuring ability, guarantee precision of test result and repeatability simultaneously.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined General Principle can realize under the situation that does not break away from the spirit or scope of the present invention in other embodiments among this paper.Therefore, the present invention will can not be restricted to these embodiment shown in this paper, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.

Claims (10)

1. circuit-breaker testing device; It is characterized in that; Comprise cabinet, control circuit and PLC controller; Said control circuit and said PLC controller are arranged in the said cabinet, and said PLC controller is connected with said control circuit, and said control circuit comprises power transformer, winding control device, current monitor, loaded impedance and circuit protection device; Said circuit protection device is arranged on the primary side of said power transformer, and said winding control device, current monitor and loaded impedance are arranged on the out secondary of said power transformer.
2. a kind of circuit-breaker testing device according to claim 1 is characterized in that, said winding control device is two A.C. contactors, and said two A.C. contactor interlockings connect.
3. a kind of circuit-breaker testing device according to claim 1 is characterized in that said current monitor comprises current transformer and reometer, and said reometer is digital ammeter or mechanical type reometer.
4. a kind of circuit-breaker testing device according to claim 1 is characterized in that said loaded impedance is an adjustable resistance.
5. a kind of circuit-breaker testing device according to claim 1 is characterized in that, also comprises parameter input device, and said parameter input device is connected with said PLC controller.
6. a kind of circuit-breaker testing device according to claim 5 is characterized in that said parameter input device comprises touch man-machine interface and current sampling device.
7. a kind of circuit-breaker testing device according to claim 1 is characterized in that, also comprises warning device, and said warning device is connected with said PLC controller.
8. a kind of circuit-breaker testing device according to claim 7 is characterized in that, said warning device is acoustic alarm device and/or light warning device.
9. a kind of circuit-breaker testing device according to claim 1 is characterized in that said cabinet is provided with radiator fan.
10. according to any described a kind of circuit-breaker testing device of claim 1 to 9, it is characterized in that also be provided with remote control, said remote control is connected with said PLC controller.
CN201110167472.2A 2011-06-21 2011-06-21 Test device for circuit breaker Active CN102841309B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201110167472.2A CN102841309B (en) 2011-06-21 2011-06-21 Test device for circuit breaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201110167472.2A CN102841309B (en) 2011-06-21 2011-06-21 Test device for circuit breaker

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CN102841309A true CN102841309A (en) 2012-12-26
CN102841309B CN102841309B (en) 2015-07-08

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104849658A (en) * 2015-06-01 2015-08-19 遵义市产品质量检验检测院 Control system of contactor reliability test device
CN106290446A (en) * 2015-05-29 2017-01-04 国网智能电网研究院 A kind of controlled direct-current arc generating means based on constant-current source
CN106772015A (en) * 2016-12-30 2017-05-31 中车长春轨道客车股份有限公司 A kind of low capacity contactor electric life test system and method
CN106771998A (en) * 2016-11-22 2017-05-31 国网山东省电力公司东营供电公司 A kind of tester for testing RCCB
CN104502765B (en) * 2014-12-24 2018-04-20 格力电器(合肥)有限公司 A kind of power transformer secondary short circuited experimental rig

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2274834Y (en) * 1996-10-01 1998-02-18 王清智 Open phase protecting device for A. C. contact interlocking motor
CN101109787A (en) * 2007-08-31 2008-01-23 天津市百利电气有限公司 Intelligent detecting device for under-voltage releasing equipment of breaker
CN201335879Y (en) * 2008-12-17 2009-10-28 沈阳兴华航空电器有限责任公司 Switch performance testing device
CN202102088U (en) * 2011-06-21 2012-01-04 苏州安泰变压器有限公司 Circuit breaker testing device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2274834Y (en) * 1996-10-01 1998-02-18 王清智 Open phase protecting device for A. C. contact interlocking motor
CN101109787A (en) * 2007-08-31 2008-01-23 天津市百利电气有限公司 Intelligent detecting device for under-voltage releasing equipment of breaker
CN201335879Y (en) * 2008-12-17 2009-10-28 沈阳兴华航空电器有限责任公司 Switch performance testing device
CN202102088U (en) * 2011-06-21 2012-01-04 苏州安泰变压器有限公司 Circuit breaker testing device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104502765B (en) * 2014-12-24 2018-04-20 格力电器(合肥)有限公司 A kind of power transformer secondary short circuited experimental rig
CN106290446A (en) * 2015-05-29 2017-01-04 国网智能电网研究院 A kind of controlled direct-current arc generating means based on constant-current source
CN104849658A (en) * 2015-06-01 2015-08-19 遵义市产品质量检验检测院 Control system of contactor reliability test device
CN106771998A (en) * 2016-11-22 2017-05-31 国网山东省电力公司东营供电公司 A kind of tester for testing RCCB
CN106772015A (en) * 2016-12-30 2017-05-31 中车长春轨道客车股份有限公司 A kind of low capacity contactor electric life test system and method

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