CN106291053A - The online leakage tested respectively of multichannel can protect the method for testing of uninterrupted power test device - Google Patents

The online leakage tested respectively of multichannel can protect the method for testing of uninterrupted power test device Download PDF

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Publication number
CN106291053A
CN106291053A CN201610649794.3A CN201610649794A CN106291053A CN 106291053 A CN106291053 A CN 106291053A CN 201610649794 A CN201610649794 A CN 201610649794A CN 106291053 A CN106291053 A CN 106291053A
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CN
China
Prior art keywords
leakage
protect
controller
multichannel
testing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN201610649794.3A
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Chinese (zh)
Inventor
蔡其芬
孙德斌
陶慧岩
郁宏明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Corp of China SGCC
State Grid Jiangsu Electric Power Co Ltd
Nantong Power Supply Co of Jiangsu Electric Power Co Ltd
Original Assignee
State Grid Corp of China SGCC
State Grid Jiangsu Electric Power Co Ltd
Nantong Power Supply Co of Jiangsu Electric Power Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by State Grid Corp of China SGCC, State Grid Jiangsu Electric Power Co Ltd, Nantong Power Supply Co of Jiangsu Electric Power Co Ltd filed Critical State Grid Corp of China SGCC
Priority to CN201610649794.3A priority Critical patent/CN106291053A/en
Publication of CN106291053A publication Critical patent/CN106291053A/en
Withdrawn legal-status Critical Current

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Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/0092Arrangements for measuring currents or voltages or for indicating presence or sign thereof measuring current only
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/327Testing of circuit interrupters, switches or circuit-breakers
    • G01R31/3277Testing of circuit interrupters, switches or circuit-breakers of low voltage devices, e.g. domestic or industrial devices, such as motor protections, relays, rotation switches
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/50Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)

Abstract

The invention discloses and a kind of the online leakage tested respectively of multichannel can protect the method for testing of uninterrupted power test device, protect, including intelligent online leakage, the controller that do not has a power failure, intelligent online leakage is protected the controller that do not has a power failure and is connected to organize test loop and corresponding many group relaies more.Present configuration is reasonable, and wiring is simple, can test leakage guarantor, trial jump in the case of not to client's power-off, improves power supply reliability and integrity is protected in leakage;And can multichannel test respectively.

Description

The online leakage tested respectively of multichannel can protect the method for testing of uninterrupted power test device
The application is application number: " multi-way intelligence leaks guarantor online for 201410346438.5, the applying date: 2014.7.18, title Uninterrupted power test device " divisional application.
Technical field
The present invention relates to a kind of multi-way intelligence and leak guarantor's uninterrupted power test device online.
Background technology
Rural power grids RCD (being called for short leakage to protect) the installation and operation code of National Energy Board is pointed out, agriculture Village's low voltage electric network classification installing leakage is protected and is to ensure that low voltage electric network safe operation, reduces or prevents person electric shock casualty accident One of effective measures, the total guarantor in common transformer platform district, rural area should be installed by power supply enterprise, is arranged on the bus of transformer platform area Upper or each bar is maked somebody a mere figurehead on lead-out wire, and leakage is protected and preferably used electromechanical three-phase and four-line protector and meet the combination type guarantor of regulation Protect device.Leakage is protected and is required monthly test action characteristic in operational management, and thunderstorm season is tested weekly once.
Protect due to leakage and need routine test, trial jump in operational management, low-voltage customer dead electricity can be caused in operation, fall Low power supply reliability and add the Frequent trip that client thinks.
At present, rural comprehensive transformator is divided into multichannel outlet, essentially 3 ~ 5 tunnel outlets substantially, and the outlet of every road is fitted with Leakage is protected, and tester every road leakage guarantor is necessary for installing a set of, and wiring becomes many, and especially for distribution box, clearance spaces is little, often Set all fills tester and just has any problem.
Summary of the invention
It is an object of the invention to provide a kind of rational in infrastructure, wiring simple, improve power supply reliability and leakage protect integrity, And guarantor's uninterrupted power test device can be leaked online by the multi-way intelligence tested respectively of multichannel.
The technical solution of the present invention is:
A kind of multi-way intelligence leaks guarantor's uninterrupted power test device online, it is characterized in that: include that the controller that do not has a power failure is protected in intelligent online leakage, Intelligent online leakage is protected the controller that do not has a power failure and is connected to organize test loop and corresponding many group relaies more;The leakage of described intelligent online is protected not Power failure controller includes being connected on catalyst and the first current sensor between device contact, one end of the second current sensor are protected in leakage Being connected between catalyst and the first current sensor, the other end of the second current sensor and the contact of the first relay connect, The contact phase-connecting wire L1 of the first relay;One leakage currents resistance one end is connected with zero line, touching of the other end and the second relay Point connects, and the contact of the second relay connects phase line on rear side of test loop transformer;First, second relay is in parallel, and first, second One terminal connecting zero line of relay, the other end is connected with controller, controller phase-connecting wire L1, and controller is provided with remote-control communication interface.
Present configuration is reasonable, and wiring is simple, in the case of not to client's power-off, leakage guarantor can be tested, be tried Jump, improve power supply reliability and integrity is protected in leakage;And can multichannel test respectively.
Accompanying drawing explanation
The invention will be further described with embodiment below in conjunction with the accompanying drawings.
Fig. 1 is the structural representation of one embodiment of the invention.
Fig. 2 protects, for intelligent online leakage, the controller that do not has a power failure in dotted line frame.
Detailed description of the invention
A kind of multi-way intelligence leaks guarantor's uninterrupted power test device online, protects the controller that do not has a power failure, intelligence including intelligent online leakage Online leakage is protected the controller that do not has a power failure and is connected to organize test loop and corresponding many group relaies (often 2 relays of group) more;Described intelligence Can leak online and protect the first current sensor that the controller that do not has a power failure includes being connected between catalyst JCQ and leakage guarantor device LBQ contact LJ1, an end of the second current sensor LJ2 is connected between catalyst JCQ and the first current sensor LJ1, the second current sense The other end of device LJ2 and the contact of the first relay k1 connect, the contact phase-connecting wire L1 of the first relay k1;One leakage current electricity Resistance R one end is connected with zero line N, and the contact of the other end and the second relay K 2 connects, and the contact of the second relay K 2 connects to be tested back Phase line on rear side of the transformer of road;First, second relay is in parallel, and a terminal connecting zero line N of first, second relay, another terminates phase Line L1.
The testing sequence of controller of not having a power failure is protected in intelligent online leakage:
1, K1 closes, and LJ1 electric current reduces, and LJ2 electric current increases, and confirms that K1 closes;
2, K2 closes, and leaks guarantor's action, and LJ1 is 0, and LJ2 electric current increases, and confirms leakage guarantor's action;
3, K2 disconnects, and LJ2 reduces, and LJ1 increases, and confirms that leakage is protected and closes;
4, K1 disconnects, and test terminates.
Test automatically can be timed, connect the remote-controlled distant place of order circuit and test and return result;For preventing phase place from connecing Wrong short circuit, intelligent online leakage is protected the controller that do not has a power failure and is protected power supply same phase with leakage, i.e. connects control power supply from leakage is protected;Working power Being defaulted as AC220V, when scene such as catalyst is AC380V, switchable power supply pattern, the data of current sensor send control to Device carries out logical relation judgement;Protect wiring with leakage and only need several (Φ 1 ~ Φ 4);Φ 5 connects phase line on rear side of test loop transformer ( Get well and L1 homophase).
Multi-channel test order:
Elder generation's Kn-1 adhesive, then Kn-2 adhesive again during test current loop;Elder generation's Kn-2 dead electricity when exiting test current loop, then Kn-1 dead electricity again, disconnects with current loop.Kn-2 with double normally closed be to ensure that reliable.

Claims (6)

1. the online leakage tested respectively of multichannel can protect the method for testing of uninterrupted power test device, it is characterized in that: include intelligence The controller that do not has a power failure is protected in online leakage, and intelligent online leakage is protected the controller that do not has a power failure and is connected to organize test loop more and organize relay more accordingly Device;The first current sense that the controller that do not has a power failure includes being connected between catalyst and leakage guarantor device contact is protected in the leakage of described intelligent online Device, an end of the second current sensor is connected between catalyst and the first current sensor, the other end of the second current sensor It is connected with the contact of the first relay, the contact phase-connecting wire L1 of the first relay;One leakage currents resistance one end is connected with zero line, The contact of the other end and the second relay connects, and the contact of the second relay connects phase line on rear side of test loop transformer;The first, Two relays are in parallel, a terminal connecting zero line of first, second relay, and the other end is connected with controller, controller phase-connecting wire L1, control Device processed is provided with remote-control communication interface;For prevent phase place wrong short circuit, intelligent online leakage protect do not have a power failure controller with leakage protect power supply with Phase place, i.e. connects control power supply from leakage is protected;Protect wiring with leakage and only need Φ 1 ~ Φ 4 four;5th Φ 5 connects test loop transformer Rear side phase line;
The testing sequence of controller of not having a power failure is protected in intelligent online leakage:
1, K1 closes, and LJ1 electric current reduces, and LJ2 electric current increases, and confirms that K1 closes;
2, K2 closes, and leaks guarantor's action, and LJ1 is 0, and LJ2 electric current increases, and confirms leakage guarantor's action;
3, K2 disconnects, and LJ2 reduces, and LJ1 increases, and confirms that leakage is protected and closes;
4, K1 disconnects, and test terminates.
The most according to claim 1 the online leakage tested respectively of multichannel can protect the method for testing of uninterrupted power test device, its Feature is: every group relay has 2 relays.
The most according to claim 1 the online leakage tested respectively of multichannel can protect the method for testing of uninterrupted power test device, its Feature is: working power is defaulted as AC220V.
The most according to claim 1 the online leakage tested respectively of multichannel can protect the method for testing of uninterrupted power test device, its Feature is: when scene such as catalyst is AC380V, switchable power supply pattern, the data of current sensor send controller to and carry out Logical relation judges.
The most according to claim 1 the online leakage tested respectively of multichannel can protect the method for testing of uninterrupted power test device, its Feature is: protects wiring with leakage and only needs Φ 1 ~ Φ 4.
The most according to claim 1 the online leakage tested respectively of multichannel can protect the method for testing of uninterrupted power test device, its Feature is: Φ 5 connects phase line on rear side of test loop transformer, with L1 homophase.
CN201610649794.3A 2014-07-18 2014-07-18 The online leakage tested respectively of multichannel can protect the method for testing of uninterrupted power test device Withdrawn CN106291053A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610649794.3A CN106291053A (en) 2014-07-18 2014-07-18 The online leakage tested respectively of multichannel can protect the method for testing of uninterrupted power test device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201610649794.3A CN106291053A (en) 2014-07-18 2014-07-18 The online leakage tested respectively of multichannel can protect the method for testing of uninterrupted power test device
CN201410346438.5A CN104101765B (en) 2014-07-18 2014-07-18 Multi-way intelligence leaks guarantor's uninterrupted power test device online

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CN106291053A true CN106291053A (en) 2017-01-04

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Family Applications (34)

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CN201610647963.XA Withdrawn CN106324386A (en) 2014-07-18 2014-07-18 Testing method for multipath intelligent on-line residual current operated protective device power cut free testing device
CN201610649008.XA Withdrawn CN106291185A (en) 2014-07-18 2014-07-18 Multi-way intelligence rational in infrastructure leaks the method for testing protecting uninterrupted power test device online
CN201610648916.7A Withdrawn CN106019032A (en) 2014-07-18 2014-07-18 Testing method of intelligent online residual current protector uninterrupted power supply testing device achieving simple wiring
CN201610651217.8A Withdrawn CN106324390A (en) 2014-07-18 2014-07-18 Multi-channel intelligent on-line leakage protection power-on test system for improving leakage protection integrity
CN201610648765.5A Withdrawn CN106019031A (en) 2014-07-18 2014-07-18 Testing method of multi-way intelligent online leakage protection not-covered no-power-outage testing device with simple wiring
CN201610649004.1A Withdrawn CN106019033A (en) 2014-07-18 2014-07-18 Testing method of multi-path intelligent online leakage protection non-outage testing device
CN201610651219.7A Withdrawn CN106019142A (en) 2014-07-18 2014-07-18 Multi-way intelligent online leakage protection non-power-outage testing device with reasonable structure
CN201610651261.9A Withdrawn CN106019038A (en) 2014-07-18 2014-07-18 Multi-channel intelligent online residual current protector uninterrupted power supply testing device achieving simple wiring
CN201610653970.0A Pending CN106249026A (en) 2014-07-18 2014-07-18 One is rational in infrastructure, guarantor's uninterrupted power test method is leaked in wiring the most online
CN201610651672.8A Withdrawn CN106019144A (en) 2014-07-18 2014-07-18 Multi-channel intelligent online residual current protector uninterrupted power supply testing device with reasonable structure
CN201610654039.4A Withdrawn CN106291056A (en) 2014-07-18 2014-07-18 The method of testing of uninterrupted power test device is protected in the online leakage improving leakage guarantor's integrity
CN201610648032.1A Withdrawn CN106324387A (en) 2014-07-18 2014-07-18 Testing method for multipath intelligent on-line residual current operated protective device power cut free testing device
CN201610647950.2A Withdrawn CN106291052A (en) 2014-07-18 2014-07-18 A kind of can leak guarantor's uninterrupted power test device online by the multi-way intelligence tested respectively of multichannel
CN201610649794.3A Withdrawn CN106291053A (en) 2014-07-18 2014-07-18 The online leakage tested respectively of multichannel can protect the method for testing of uninterrupted power test device
CN201610651222.9A Withdrawn CN106291347A (en) 2014-07-18 2014-07-18 The multi-way intelligence improving power supply reliability leaks guarantor's uninterrupted power test device online
CN201410346438.5A Active CN104101765B (en) 2014-07-18 2014-07-18 Multi-way intelligence leaks guarantor's uninterrupted power test device online
CN201610648037.4A Withdrawn CN106324388A (en) 2014-07-18 2014-07-18 Test method of reliably-powered multi-channel intelligent online leakage protector power-on test device
CN201610648036.XA Withdrawn CN106019030A (en) 2014-07-18 2014-07-18 Testing method of intelligent online leakage protector non-outage testing device
CN201610648757.0A Withdrawn CN106324389A (en) 2014-07-18 2014-07-18 Online leakage protection live-line testing method capable of achieving multichannel testing independently
CN201510420539.7A Withdrawn CN105093009A (en) 2014-07-18 2014-07-18 Multi-path intelligent on-line leakage protection uninterruptible-power-supply testing apparatus capable of improving power supply reliability
CN201610654040.7A Withdrawn CN106324391A (en) 2014-07-18 2014-07-18 Simple-wiring multipath intelligent online leakage protection no-power-failure testing device
CN201610651207.4A Withdrawn CN106019036A (en) 2014-07-18 2014-07-18 Testing method of intelligent online residual current device outage-free testing device
CN201610647592.5A Withdrawn CN106291184A (en) 2014-07-18 2014-07-18 The method of testing protecting uninterrupted power test device is leaked in rational in infrastructure, wiring the most online
CN201610648768.9A Withdrawn CN106019141A (en) 2014-07-18 2014-07-18 Testing method of intelligent online residual current protector uninterrupted power supply testing device with reasonable structure
CN201610651262.3A Withdrawn CN106291054A (en) 2014-07-18 2014-07-18 A kind of multi-way intelligence leaks guarantor's uninterrupted power test device online
CN201610648033.6A Withdrawn CN106019029A (en) 2014-07-18 2014-07-18 Multi-way online leakage protection non-power-outage testing device with reasonable structure and simple wiring
CN201610650394.4A Withdrawn CN106019035A (en) 2014-07-18 2014-07-18 Multi-way intelligent on-line leakage protector uninterrupted testing device for improving leakage protector integrity
CN201610649799.6A Withdrawn CN106019034A (en) 2014-07-18 2014-07-18 Multi-way intelligent online leakage protection non-power-outage testing device capable of achieving multi-way respective testing
CN201610651221.4A Withdrawn CN106019037A (en) 2014-07-18 2014-07-18 Testing method of reliable-power-supply intelligent online leakage-protector poweroff-free testing device
CN201610651681.7A Withdrawn CN106291055A (en) 2014-07-18 2014-07-18 A kind of multi-way intelligence leaks the multi-channel test method protecting uninterrupted power test device online
CN201610651246.4A Withdrawn CN106019143A (en) 2014-07-18 2014-07-18 Multi-channel intelligent online residual current protector uninterrupted power supply testing device with reasonable and simple structure
CN201510420536.3A Withdrawn CN105044510A (en) 2014-07-18 2014-07-18 Multi-channel intelligent online leakage protection uninterruptible test device with simple wiring and rational structure
CN201610648758.5A Withdrawn CN106054007A (en) 2014-07-18 2014-07-18 Multi-channel test method of multichannel intelligent on-line leakage-protection uninterrupted power test device
CN201610648769.3A Withdrawn CN106291346A (en) 2014-07-18 2014-07-18 A kind of multi-way intelligence improving power supply reliability leaks guarantor's uninterrupted power test device online

Family Applications Before (13)

Application Number Title Priority Date Filing Date
CN201610647963.XA Withdrawn CN106324386A (en) 2014-07-18 2014-07-18 Testing method for multipath intelligent on-line residual current operated protective device power cut free testing device
CN201610649008.XA Withdrawn CN106291185A (en) 2014-07-18 2014-07-18 Multi-way intelligence rational in infrastructure leaks the method for testing protecting uninterrupted power test device online
CN201610648916.7A Withdrawn CN106019032A (en) 2014-07-18 2014-07-18 Testing method of intelligent online residual current protector uninterrupted power supply testing device achieving simple wiring
CN201610651217.8A Withdrawn CN106324390A (en) 2014-07-18 2014-07-18 Multi-channel intelligent on-line leakage protection power-on test system for improving leakage protection integrity
CN201610648765.5A Withdrawn CN106019031A (en) 2014-07-18 2014-07-18 Testing method of multi-way intelligent online leakage protection not-covered no-power-outage testing device with simple wiring
CN201610649004.1A Withdrawn CN106019033A (en) 2014-07-18 2014-07-18 Testing method of multi-path intelligent online leakage protection non-outage testing device
CN201610651219.7A Withdrawn CN106019142A (en) 2014-07-18 2014-07-18 Multi-way intelligent online leakage protection non-power-outage testing device with reasonable structure
CN201610651261.9A Withdrawn CN106019038A (en) 2014-07-18 2014-07-18 Multi-channel intelligent online residual current protector uninterrupted power supply testing device achieving simple wiring
CN201610653970.0A Pending CN106249026A (en) 2014-07-18 2014-07-18 One is rational in infrastructure, guarantor's uninterrupted power test method is leaked in wiring the most online
CN201610651672.8A Withdrawn CN106019144A (en) 2014-07-18 2014-07-18 Multi-channel intelligent online residual current protector uninterrupted power supply testing device with reasonable structure
CN201610654039.4A Withdrawn CN106291056A (en) 2014-07-18 2014-07-18 The method of testing of uninterrupted power test device is protected in the online leakage improving leakage guarantor's integrity
CN201610648032.1A Withdrawn CN106324387A (en) 2014-07-18 2014-07-18 Testing method for multipath intelligent on-line residual current operated protective device power cut free testing device
CN201610647950.2A Withdrawn CN106291052A (en) 2014-07-18 2014-07-18 A kind of can leak guarantor's uninterrupted power test device online by the multi-way intelligence tested respectively of multichannel

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CN201610651222.9A Withdrawn CN106291347A (en) 2014-07-18 2014-07-18 The multi-way intelligence improving power supply reliability leaks guarantor's uninterrupted power test device online
CN201410346438.5A Active CN104101765B (en) 2014-07-18 2014-07-18 Multi-way intelligence leaks guarantor's uninterrupted power test device online
CN201610648037.4A Withdrawn CN106324388A (en) 2014-07-18 2014-07-18 Test method of reliably-powered multi-channel intelligent online leakage protector power-on test device
CN201610648036.XA Withdrawn CN106019030A (en) 2014-07-18 2014-07-18 Testing method of intelligent online leakage protector non-outage testing device
CN201610648757.0A Withdrawn CN106324389A (en) 2014-07-18 2014-07-18 Online leakage protection live-line testing method capable of achieving multichannel testing independently
CN201510420539.7A Withdrawn CN105093009A (en) 2014-07-18 2014-07-18 Multi-path intelligent on-line leakage protection uninterruptible-power-supply testing apparatus capable of improving power supply reliability
CN201610654040.7A Withdrawn CN106324391A (en) 2014-07-18 2014-07-18 Simple-wiring multipath intelligent online leakage protection no-power-failure testing device
CN201610651207.4A Withdrawn CN106019036A (en) 2014-07-18 2014-07-18 Testing method of intelligent online residual current device outage-free testing device
CN201610647592.5A Withdrawn CN106291184A (en) 2014-07-18 2014-07-18 The method of testing protecting uninterrupted power test device is leaked in rational in infrastructure, wiring the most online
CN201610648768.9A Withdrawn CN106019141A (en) 2014-07-18 2014-07-18 Testing method of intelligent online residual current protector uninterrupted power supply testing device with reasonable structure
CN201610651262.3A Withdrawn CN106291054A (en) 2014-07-18 2014-07-18 A kind of multi-way intelligence leaks guarantor's uninterrupted power test device online
CN201610648033.6A Withdrawn CN106019029A (en) 2014-07-18 2014-07-18 Multi-way online leakage protection non-power-outage testing device with reasonable structure and simple wiring
CN201610650394.4A Withdrawn CN106019035A (en) 2014-07-18 2014-07-18 Multi-way intelligent on-line leakage protector uninterrupted testing device for improving leakage protector integrity
CN201610649799.6A Withdrawn CN106019034A (en) 2014-07-18 2014-07-18 Multi-way intelligent online leakage protection non-power-outage testing device capable of achieving multi-way respective testing
CN201610651221.4A Withdrawn CN106019037A (en) 2014-07-18 2014-07-18 Testing method of reliable-power-supply intelligent online leakage-protector poweroff-free testing device
CN201610651681.7A Withdrawn CN106291055A (en) 2014-07-18 2014-07-18 A kind of multi-way intelligence leaks the multi-channel test method protecting uninterrupted power test device online
CN201610651246.4A Withdrawn CN106019143A (en) 2014-07-18 2014-07-18 Multi-channel intelligent online residual current protector uninterrupted power supply testing device with reasonable and simple structure
CN201510420536.3A Withdrawn CN105044510A (en) 2014-07-18 2014-07-18 Multi-channel intelligent online leakage protection uninterruptible test device with simple wiring and rational structure
CN201610648758.5A Withdrawn CN106054007A (en) 2014-07-18 2014-07-18 Multi-channel test method of multichannel intelligent on-line leakage-protection uninterrupted power test device
CN201610648769.3A Withdrawn CN106291346A (en) 2014-07-18 2014-07-18 A kind of multi-way intelligence improving power supply reliability leaks guarantor's uninterrupted power test device online

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CN107727982A (en) * 2017-11-29 2018-02-23 国家电网公司 It is a kind of to realize that the device and method for the experiment that do not have a power failure is protected in leakage by bypass circuit afterflow
CN110246727B (en) * 2019-06-29 2024-05-24 广东利元亨智能装备股份有限公司 Direct current contactor production line

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