CN108181581A - The intelligent test device and test method of a kind of residual current action protector - Google Patents
The intelligent test device and test method of a kind of residual current action protector Download PDFInfo
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- CN108181581A CN108181581A CN201810224507.3A CN201810224507A CN108181581A CN 108181581 A CN108181581 A CN 108181581A CN 201810224507 A CN201810224507 A CN 201810224507A CN 108181581 A CN108181581 A CN 108181581A
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- 238000012360 testing method Methods 0.000 title claims abstract description 182
- 230000001012 protector Effects 0.000 title claims abstract description 27
- 238000010998 test method Methods 0.000 title claims abstract description 14
- 230000001105 regulatory effect Effects 0.000 claims description 21
- 238000001514 detection method Methods 0.000 claims description 17
- 238000002474 experimental method Methods 0.000 claims description 9
- 230000005611 electricity Effects 0.000 claims description 3
- 238000013461 design Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Classifications
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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
- G01R31/3277—Testing of circuit interrupters, switches or circuit-breakers of low voltage devices, e.g. domestic or industrial devices, such as motor protections, relays, rotation switches
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The invention discloses a kind of intelligent test devices of residual current action protector, and including test loop and test loop, the test loop tests the test current size of residual current action protector for setting；Residual current action protector is tested using test current in test loop；The invention also discloses a kind of test methods based on intelligent test device, the present invention switches over test loop and test loop by disconnection, the connection of A.C. contactor, simplify test wiring, improve test job efficiency, wiring simple, intuitive is tested, solves the problems, such as that test current adjustable range is relatively narrow, reduces misuse rate and technical difficulty, test efficiency and security performance are effectively increased, effectively increases the accuracy of test data.
Description
Technical field
The present invention relates to a kind of intelligent test device and test method more particularly to a kind of residual current action protector
Intelligent test device and test method.
Background technology
With the growth of household electrical appliance and its supply line's frequency of use and service life, leaky is easily generated, it is existing
For breaker of the domestic power circuit with different brackets residual current protecting function or similar protector, such breaker or
Whether the residual current acting attribute inspection of protector is an extremely important test and examines breaker or protector that can
The major criterion of enough normal uses.At present, the test equipment and its test method of residual current action protector, generally existing is such as
Lower three classes defect：(1) wiring is complicated, and test operation step is numerous and diverse and hookup wiring, test function selection, inspection parameter tune
Section is required to manual setting, and test efficiency is relatively low, more demanding to the professional technique of personnel, and application condition is big；(2) residual current
Adjustable range is relatively narrow；(3) intelligent test device, not enough clearly with test requirements document without ocular connection, shortage has operation interface
The fault-operation protection mechanism of effect.
Invention content
The object of the present invention is to provide the intelligent test devices and test method of residual current action protector, pass through inside
The switching of circuit is realized and tests residual current adjusting and the simple switching of test session, and the circuit during short form test improves
Working efficiency is detected, reduces misuse rate and technical difficulty, effectively increases the accuracy of test data.
The technical solution that the present invention takes is：
A kind of intelligent test device of residual current action protector, including test loop and test loop, the test loop
For setting the test current size of test residual current action protector；Residual current is moved using test current test loop
It is tested as protector；
The test loop includes isolated buck transformer, and isolated buck transformer connect with electronic adjustable transformer, it is electronic can
Voltage regulator/transformer, electronic adjustable transformer are connect successively with resistor group, current regulating module, current detection module；The electric current
Detection module is connect with controller；The current regulating module is connect with relay group；The relay group is connect with controller,
Controller is connect with touch screen；
The test loop and test loop are mutually switched by the second A.C. contactor off and on；Second exchange connects
Tentaculum is connect with relay group and current detection module；
The test loop include the first A.C. contactor, the first A.C. contactor respectively with timer current transducer, second
A.C. contactor, electronic adjustable transformer, the connection of relay group, the electronic adjustable transformer connect with isolated buck transformer
It connects；The timer current transducer is connect with short delay timer；
The isolated buck transformer is connect by corresponding terminal with D.C. regulated power supply, and the D.C. regulated power supply is also control
Device processed provides power supply with touch screen.
The resistor group is made of at least two resistors in parallel.
The current regulating module is made of at least two third A.C. contactors in parallel.
The current detection module is made of at least two current transducers in parallel.
Analogue collection module is provided on the controller.
Buck regulation button is provided on electronic adjustable transformer, for accurately adjusting the numerical value of test current.
The test loop and test loop are placed in test device ontology, and the test device outer body is provided with
Test platform, connecting terminal block, short delay timer and buck regulation button.
The controller is microcontroller or PLC controller.
Using a kind of test method of residual current action protector intelligent test device, including：
Test specimen is accessed into intelligent test device, intelligent test device connection power supply according to the opposite connecting terminal block wanted；
The second A.C. contactor is connected, disconnects the first A.C. contactor；
Test loop switches off and on test current range of the setting for experiment according to third A.C. contactor, adjusts electronic
Adjustable transformer accurately adjusts test current；
The second A.C. contactor is disconnected, connects the first A.C. contactor；
Test current is loaded onto test loop, and the signal that short delay timer obtains timer current transducer starts timing；
The time successfully threaded off according to specimen sample judges whether test specimen is qualified.
The test device connects power supply, specially connecting terminal block by three step switch respectively with the N poles of external power supply,
A poles, B poles, C are extremely connected.
It is described that test specimen is accessed into intelligent test device, test specimen switch outlet according to the opposite connecting terminal block wanted
The end extreme sons of arbitrary non-n are extremely connected with a of connecting terminal block.
The test loop switches off and on test current range of the setting for experiment according to third A.C. contactor,
Electronic adjustable transformer is adjusted, accurately adjusts test current, specially：
The work for setting current regulating module by the section residing for touch screen input test current is combined；
The accurate adjusting of electronic adjustable transformer realization test current is adjusted using lift adjustment button；
Test current data after adjustment are transferred to the analogue collection module in controller by current detection module.
The time successfully threaded off according to specimen sample judges whether test specimen is qualified, specially：Test specimen exists
It successfully threads off in defined time range, then test specimen passes through test；If test specimen cannot succeed before the deadline
It threads off, then test specimen does not pass through test.
The current regulating module is made of at least two third A.C. contactors in parallel.
The current detection module is made of at least two current transducers in parallel.
Beneficial effects of the present invention：Internal circuit of the present invention by the disconnection of A.C. contactor, connect to test loop and
Test loop switches over, and simplifies test wiring, only needs progress primary connection that can complete to test during experiment, improves
Test job efficiency tests wiring simple, intuitive, by touch screen Selection experiment electric current, solve test current adjustable range compared with
The problem of narrow, reduces misuse rate and technical difficulty, effectively increases test efficiency and security performance, and the present invention is prolonged by short
When timer when, avoid the delay of program timing, effectively increase the accuracy of test data.
Description of the drawings
Fig. 1 is the circuit diagram of intelligent test device of the present invention；
Fig. 2 is the external structure schematic diagram of intelligent test device of the present invention；
Wherein：1. test platform；2. connecting terminal block；3. touch screen；4. short delay timer；5. buck regulation button；6.
Controller；7. relay group；8. current transducer；9. third A.C. contactor；10. resistor；11. the second A.C. contactor；
12. the first A.C. contactor；13. electronic adjustable transformer；14. isolated buck transformer；15. D.C. regulated power supply；16. timing
Device current transducer.
Specific embodiment
The invention will be further described with preferred embodiment below in conjunction with the accompanying drawings.
As depicted in figs. 1 and 2, a kind of intelligent test device of residual current action protector, including test loop and examination
Circuit is tested, the test loop tests the test current size of residual current action protector for setting；Test loop utilizes
Test current tests residual current action protector；Test loop includes isolated buck transformer 14, and isolated buck becomes
Depressor 14 is connect with electronic adjustable transformer 13, electronic adjustable transformer 13 successively with resistor group, current regulating module, electric current
Detection module connects；Current detection module is connect with controller 6, and analogue collection module is provided on controller 6；Resistor group
It is made of three resistors 10 in parallel, current regulating module is made of three third A.C. contactors 9 in parallel, current detecting
Module is made of three current transducers 8 in parallel, and three resistors 10 are distinguished corresponding third A.C. contactor 9 and connected
It connects, three third A.C. contactors 9 are distinguished corresponding current transducer 8 and connected；Current regulating module connects with relay group 7
It connects, adjustable test current exchange value maximum to 200A；Relay group 7 is connect with controller 6, and controller 6 connects with touch screen 3
It connects, controller 6 is microcontroller or PLC controller；Test loop and test loop are disconnected and are connect by the second A.C. contactor 11
Logical mutually switching；Second A.C. contactor 11 is connect with relay group 7 and current detection module；Test loop includes first
A.C. contactor 12, the first A.C. contactor 12 respectively with timer current transducer 16, the second A.C. contactor 11, it is electronic can
Voltage regulator/transformer 13, relay group 7 connect.The electronic adjustable transformer 13 is connect with isolated buck transformer 14；The timing
Device current transducer 16 is connect with short delay timer 4；Isolated buck transformer 14 passes through corresponding terminal and DC voltage-stabilizing electricity
Source 15 connects, and also device 6 provides power supply to the D.C. regulated power supply 15 with touch screen 3 in order to control.
Test loop and test loop are placed in test device ontology, and the test device outer body is provided with experiment
Platform 1, connecting terminal block 2, short delay timer 4 and buck regulation button 5.Lifting is provided on electronic adjustable transformer 13
Regulation button 5 is pressed, for accurately adjusting the numerical value of test current.
Current transducer 8 selects specification to adjust its shunt loading impedance for 15A, 100A, 150A three types, consider
To instrument and meter, in low level, a high position for range, measurement accuracy can all be declined, and be 2A ~ 10A by currents combination form design,
The work of 15A current transducers, currents combination form design are 10A ~ 80A, and the work of 100A current transducers, currents combination form are set
It is calculated as 80A ~ 110A, the work of 150A current transducers, currents combination form design are 110A ~ 200A, three specification electric current pick-ups
Device works at the same time, during such 110A ~ 200A load currents, 15A types transmitter load 5.5A ~ 10A, and the load of 100A types transmitter
44A ~ 80A, 150A type transmitter load 82.5A ~ 110A, and each current segment improves on the basis of ensureing that precision current measures
Test current output area.
Using a kind of test method of residual current action protector intelligent test device, including：
Test specimen is accessed into intelligent test device, intelligent test device connection power supply according to the opposite connecting terminal block wanted；
The second A.C. contactor 11 is connected, disconnects the first A.C. contactor 12；
Test loop switches off and on test current range of the setting for experiment according to third A.C. contactor 9, adjusts electricity
Dynamic adjustable transformer 13, accurately adjusts test current；
The second A.C. contactor 11 is disconnected, connects the first A.C. contactor 12；
Test current is loaded onto test loop, and the signal that short delay timer 4 obtains timer current transducer 16 starts timing；
The time successfully threaded off according to specimen sample judges whether test specimen is qualified.
The test device connects power supply, specially connecting terminal block 2 by three step switch respectively with the N of external power supply
Pole, A poles, B poles, C are extremely connected.
Described that test specimen is accessed intelligent test device according to the opposite connecting terminal block 2 wanted, test specimen switchs out
The extreme sons of the arbitrarily non-n of line end are extremely connected with a of connecting terminal block.
The test loop switches off and on test current model of the setting for experiment according to third A.C. contactor 9
It encloses, adjusts electronic adjustable transformer 13, accurately adjust test current, specially：
The section residing for test current is inputted by touch screen 3 sets the work of current regulating module to combine；
The accurate adjusting of the electronic realization of adjustable transformer 13 test current is adjusted using lift adjustment button 5；
Test current data after adjustment are transferred to the analogue collection module in controller 6 by current detection module.
The time successfully threaded off according to specimen sample judges whether test specimen is qualified, specially：Test specimen exists
It successfully threads off in defined time range, then test specimen passes through test；If test specimen cannot succeed before the deadline
It threads off, then test specimen does not pass through test.
The current regulating module is made of three third A.C. contactors 9 in parallel.
The current detection module is made of three current transducers 8 in parallel.
The explanation of above example is only intended to facilitate the understanding of the method and its core concept of the invention；Meanwhile for this
The those skilled in the art in field, thought according to the present invention, there will be changes in specific embodiments and applications,
In conclusion the content of the present specification should not be construed as limiting the invention.
Claims (10)
1. a kind of intelligent test device of residual current action protector, which is characterized in that including test loop and test loop,
The test loop tests the test current size of residual current action protector for setting；Test loop utilizes test current
Residual current action protector is tested；
The test loop includes isolated buck transformer, and isolated buck transformer connect with electronic adjustable transformer, it is electronic can
Voltage regulator/transformer, electronic adjustable transformer are connect successively with resistor group, current regulating module, current detection module；The electric current
Detection module is connect with controller；The current regulating module is connect with relay group；The relay group is connect with controller,
Controller is connect with touch screen；
The test loop and test loop are mutually switched by the second A.C. contactor off and on；Second exchange connects
Tentaculum is connect with relay group and current detection module；
The test loop include the first A.C. contactor, the first A.C. contactor respectively with timer current transducer, second
A.C. contactor, electronic adjustable transformer, the connection of relay group, the electronic adjustable transformer connect with isolated buck transformer
It connects；The timer current transducer is connect with short delay timer；
The isolated buck transformer is connect by corresponding terminal with D.C. regulated power supply, and the D.C. regulated power supply is also control
Device processed provides power supply with touch screen.
A kind of 2. intelligent test device of residual current action protector as described in claim 1, which is characterized in that the electricity
Resistance device group is made of at least two resistors in parallel；
The current regulating module is made of at least two third A.C. contactors in parallel；
The current detection module is made of at least two current transducers in parallel.
A kind of 3. intelligent test device of residual current action protector as described in claim 1, which is characterized in that the control
Analogue collection module is provided on device processed.
4. a kind of intelligent test device of residual current action protector as described in claim 1, which is characterized in that it is electronic can
Buck regulation button is provided on voltage regulator/transformer, for accurately adjusting the numerical value of test current.
A kind of 5. intelligent test device of residual current action protector as described in claim 1, which is characterized in that the survey
Examination circuit and test loop are placed in test device ontology, and the test device outer body is provided with test platform, wiring
Terminal block, short delay timer and buck regulation button.
6. based on a kind of test method of residual current action protector intelligent test device described in claim 1, feature
It is, including：
Test specimen is accessed into intelligent test device, intelligent test device connection power supply according to the opposite connecting terminal block wanted；
The second A.C. contactor is connected, disconnects the first A.C. contactor,
Test loop switches off and on test current range of the setting for experiment according to third A.C. contactor, adjusts electronic
Adjustable transformer accurately adjusts test current；
The second A.C. contactor is disconnected, connects the first A.C. contactor；
Test current is loaded onto test loop, and the signal that short delay timer obtains timer current transducer starts timing；
The time successfully threaded off according to specimen sample judges whether test specimen is qualified.
7. test method as claimed in claim 6, which is characterized in that the test device connects power supply, specially terminals
Son row is extremely connected by three step switch with the N poles of external power supply, A poles, B poles, C respectively；
Described that test specimen is accessed intelligent test device according to the opposite connecting terminal block wanted, test specimen switch wire outlet terminal is appointed
The extreme sons of the non-n that anticipates extremely are connected with a of connecting terminal block.
8. test method as claimed in claim 6, which is characterized in that the test loop is according to the pass of third A.C. contactor
Break and connect test current range of the setting for experiment, adjust electronic adjustable transformer, accurately adjust test current, specifically
For：
The work for setting current regulating module by the section residing for touch screen input test current is combined；
The accurate adjusting of electronic adjustable transformer realization test current is adjusted using lift adjustment button；
Test current data after adjustment are transferred to the analogue collection module in controller by current detection module.
9. test method as claimed in claim 6, which is characterized in that the time successfully threaded off according to specimen sample, sentence
Whether disconnected test specimen is qualified, specially：Test specimen is successfully threaded off in defined time range, then test specimen passes through survey
Examination；If test specimen cannot successfully thread off before the deadline, test specimen does not pass through test.
10. test method as claimed in claim 6, which is characterized in that current regulating module is by least two thirds in parallel
A.C. contactor forms；The current detection module is made of at least two current transducers in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810224507.3A CN108181581B (en) | 2018-03-19 | 2018-03-19 | Intelligent testing device and testing method for residual current operated protector |
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|---|---|---|---|
| CN201810224507.3A CN108181581B (en) | 2018-03-19 | 2018-03-19 | Intelligent testing device and testing method for residual current operated protector |
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| CN108181581B CN108181581B (en) | 2023-12-22 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109696626A (en) * | 2019-03-06 | 2019-04-30 | 山东省产品质量检验研究院 | A kind of actuating range experiment test device of control and protective switching device and application |
| CN112748321A (en) * | 2020-12-04 | 2021-05-04 | 深圳供电局有限公司 | Testing device for residual current protection device |
Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU705586A1 (en) * | 1977-08-30 | 1979-12-25 | Научно-Исследовательский Горнорудный Институт | Device for protecting against current leakage to the ground in insulated neutral three-phase network |
| GB2118310A (en) * | 1982-04-08 | 1983-10-26 | Avo Limited | An instrument for testing circuit breakers |
| CN101344552A (en) * | 2008-08-15 | 2009-01-14 | 安徽理工大学 | Grid system integrated protector tester |
| CN201247289Y (en) * | 2008-08-15 | 2009-05-27 | 安徽理工大学 | High-voltage network integrated protector tester |
| US20100175970A1 (en) * | 2007-05-28 | 2010-07-15 | Giovanni Pieri | Residual current circuit breaker controlling and auxiliary apparatus, and residual current circuit breaker equipped thereby |
| CN202748425U (en) * | 2012-09-05 | 2013-02-20 | 王晴 | Residual current protection uninterrupted testing device |
| CN202794457U (en) * | 2012-08-27 | 2013-03-13 | 浙江省检验检疫科学技术研究院 | Device for accurately measuring tripping time of circuit breaker |
| CN202997519U (en) * | 2012-08-29 | 2013-06-12 | 沈阳隆基电磁科技股份有限公司 | Verifying attachment of motor protector |
| CN203217054U (en) * | 2013-05-17 | 2013-09-25 | 哈尔滨国力电气有限公司 | Protection switch test stand |
| CN203312764U (en) * | 2013-04-24 | 2013-11-27 | 人民电器集团有限公司 | Residual current action protection relay |
| CN103487699A (en) * | 2013-09-25 | 2014-01-01 | 浙江大学 | Digital detecting system for leakage protector and high-precision detecting method |
| CN104391243A (en) * | 2014-11-18 | 2015-03-04 | 国家电网公司 | Automatic testing device for three-phase aftercurrent action protector |
| CN104459526A (en) * | 2014-11-27 | 2015-03-25 | 苏州上电科电气设备有限公司 | B-type residual current protecting circuit breaker testing device |
| CN204575784U (en) * | 2014-08-13 | 2015-08-19 | 中煤科工集团上海有限公司 | A kind of mine electrical appliance leak(age) test tester |
| CN105158595A (en) * | 2015-07-31 | 2015-12-16 | 苏州宏展信息科技有限公司 | Leakage protector monitoring system based on sine wave generator |
| CN205486937U (en) * | 2016-02-22 | 2016-08-17 | 国网山东省电力公司夏津县供电公司 | Safety utilization of electric power teaching model of family |
| CN106159873A (en) * | 2015-03-10 | 2016-11-23 | 江苏苏益电器股份有限公司 | A kind of condition for validity evaluator of residual current circuit breaker automatic reclosing |
| CN205941823U (en) * | 2016-08-30 | 2017-02-08 | 中山市开普电器有限公司 | Specified surplus switch -on breaking capacity testing arrangement |
| CN207895046U (en) * | 2018-03-19 | 2018-09-21 | 山东省产品质量检验研究院 | A kind of intelligent test device of residual current action protector |
-
2018
- 2018-03-19 CN CN201810224507.3A patent/CN108181581B/en active Active
Patent Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU705586A1 (en) * | 1977-08-30 | 1979-12-25 | Научно-Исследовательский Горнорудный Институт | Device for protecting against current leakage to the ground in insulated neutral three-phase network |
| GB2118310A (en) * | 1982-04-08 | 1983-10-26 | Avo Limited | An instrument for testing circuit breakers |
| US20100175970A1 (en) * | 2007-05-28 | 2010-07-15 | Giovanni Pieri | Residual current circuit breaker controlling and auxiliary apparatus, and residual current circuit breaker equipped thereby |
| CN101344552A (en) * | 2008-08-15 | 2009-01-14 | 安徽理工大学 | Grid system integrated protector tester |
| CN201247289Y (en) * | 2008-08-15 | 2009-05-27 | 安徽理工大学 | High-voltage network integrated protector tester |
| CN202794457U (en) * | 2012-08-27 | 2013-03-13 | 浙江省检验检疫科学技术研究院 | Device for accurately measuring tripping time of circuit breaker |
| CN202997519U (en) * | 2012-08-29 | 2013-06-12 | 沈阳隆基电磁科技股份有限公司 | Verifying attachment of motor protector |
| CN202748425U (en) * | 2012-09-05 | 2013-02-20 | 王晴 | Residual current protection uninterrupted testing device |
| CN203312764U (en) * | 2013-04-24 | 2013-11-27 | 人民电器集团有限公司 | Residual current action protection relay |
| CN203217054U (en) * | 2013-05-17 | 2013-09-25 | 哈尔滨国力电气有限公司 | Protection switch test stand |
| CN103487699A (en) * | 2013-09-25 | 2014-01-01 | 浙江大学 | Digital detecting system for leakage protector and high-precision detecting method |
| CN204575784U (en) * | 2014-08-13 | 2015-08-19 | 中煤科工集团上海有限公司 | A kind of mine electrical appliance leak(age) test tester |
| CN104391243A (en) * | 2014-11-18 | 2015-03-04 | 国家电网公司 | Automatic testing device for three-phase aftercurrent action protector |
| CN104459526A (en) * | 2014-11-27 | 2015-03-25 | 苏州上电科电气设备有限公司 | B-type residual current protecting circuit breaker testing device |
| CN106159873A (en) * | 2015-03-10 | 2016-11-23 | 江苏苏益电器股份有限公司 | A kind of condition for validity evaluator of residual current circuit breaker automatic reclosing |
| CN105158595A (en) * | 2015-07-31 | 2015-12-16 | 苏州宏展信息科技有限公司 | Leakage protector monitoring system based on sine wave generator |
| CN205486937U (en) * | 2016-02-22 | 2016-08-17 | 国网山东省电力公司夏津县供电公司 | Safety utilization of electric power teaching model of family |
| CN205941823U (en) * | 2016-08-30 | 2017-02-08 | 中山市开普电器有限公司 | Specified surplus switch -on breaking capacity testing arrangement |
| CN207895046U (en) * | 2018-03-19 | 2018-09-21 | 山东省产品质量检验研究院 | A kind of intelligent test device of residual current action protector |
Non-Patent Citations (2)
| Title |
|---|
| 刘洪磊: "微型断路器操作、瞬动和过载可靠性试验技术的研究", 《中国优秀硕士学位论文全文数据库工程科技Ⅱ辑》, no. 3, pages 042 - 665 * |
| 王昕彬: "基于C8051F410单片机的剩余电流动作保护装置设计", 《科技视界》, pages 322 - 323 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109696626A (en) * | 2019-03-06 | 2019-04-30 | 山东省产品质量检验研究院 | A kind of actuating range experiment test device of control and protective switching device and application |
| CN109696626B (en) * | 2019-03-06 | 2024-02-27 | 山东省产品质量检验研究院 | Action range test device for control and protection switch electric appliance and application |
| CN112748321A (en) * | 2020-12-04 | 2021-05-04 | 深圳供电局有限公司 | Testing device for residual current protection device |
| CN112748321B (en) * | 2020-12-04 | 2023-01-24 | 深圳供电局有限公司 | Testing device for residual current protection device |
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| CN108181581B (en) | 2023-12-22 |
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