CN102033181A - Portable spare power automatic switching calibrator - Google Patents
Portable spare power automatic switching calibrator Download PDFInfo
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- CN102033181A CN102033181A CN2010105588079A CN201010558807A CN102033181A CN 102033181 A CN102033181 A CN 102033181A CN 2010105588079 A CN2010105588079 A CN 2010105588079A CN 201010558807 A CN201010558807 A CN 201010558807A CN 102033181 A CN102033181 A CN 102033181A
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Abstract
The invention relates to the technical field of substation equipment detection, disclosing a portable spare power automatic switching calibrator. The portable spare power automatic switching calibrator is provided with a transmission and distribution circuit of a primary system pipe network of an analog substation, and comprises two analog high-voltage bus circuits, two analog low-voltage user circuits and a power supply, wherein the contacts of a high-voltage DL (delay line) module connected with the two analog high-voltage bus circuits are connected with a direct-current power supply respectively by a vacuum switch; the high-voltage DL module is connected with the analog low-voltage user circuits by a low-voltage DL module and a vacuum switch; and a low-voltage sectioned DL module is arranged between two analog low-voltage user circuits. The portable spare power automatic switching calibrator provided by the invention can accurately and reliably detect the function of a spare power automatic switching automatic device, is convenient in use and low in maintenance and manufacture cost, and ensures that power failure accident hidden danger brought by practical belt switch driving is avoided and the power supply reliability is enhanced, thereby providing convenient conditions for detecting the spare power automatic switching device and having strong economical benefit and social benefit.
Description
Technical field
The present invention relates to substation equipment inspection technology field, be particularly useful at primary equipment not under the power-off condition, a kind of portable prepared auto restart tester that power supply backup auto-activating device logic function is tested.
Background technology
Along with The application of new technique, social life is more and more strong to the dependence of electric power supply, and the power system power supply reliability has become an important indicator weighing the quality of power supply.In order to improve power supply reliability, usually adopt the standby each other power supply mode of dual power supply, standby power supply automatic switching device importance has some idea of.Yet the reliability that how to make things convenient for, reliably and efficiently tests backup auto-activating device for a long time becomes comparison stubborn problem in the secondary equipment in power system verification.Because the acquisition system parameter is various during backup auto-activating device work, action relates to wide, the actual belt switch drive experiments of isolating switch scope risk and suffers from big.At present, general tester and mimic-disconnecting switch are independent device, wiring complexity when doing the backup auto-activating device test, and human factor influences greatly during test, and test findings is unreliable.
Summary of the invention
For solving the problems of the technologies described above, the object of the invention provides a kind of portable prepared auto restart tester, can realize aut.eq. prepared auto restart function is made things convenient for accurately and check reliably.Help simplifying the step and the wiring of prepared auto restart test, help the accurate and reliable of prepared auto restart test findings.
For achieving the above object, the present invention adopts following technical scheme:
A kind of portable prepared auto restart tester, power transmission path with simulation transforming plant primary system pipe network, comprise: two-way simulated high-pressure bus circuit, two-way simulation low-voltage customer circuit and power supply, the high pressure DL module contact that described two-way simulated high-pressure bus circuit connects is opened with direct supply by sky respectively and is connected; Described high pressure DL module by low pressure DL module, sky is opened with simulate the low-voltage customer circuit is connected; Be provided with low pressure segmentation DL module between the two-way simulation low-voltage customer circuit.
A kind of portable prepared auto restart tester, the simulated high-pressure bus circuit is made of high pressure P T module, high pressure P T module is made up of one group of auxiliary reclay and signal lamp, the coils from parallel connection of coils one termination dc power cathode of two auxiliary reclays, the other end is PT link YCDY, the group normally opened contact one termination A phase of two auxiliary reclays, B phase, C phase three-phase alternating-current supply, another termination simulated high-pressure bus circuit A phase, B phase, C phase three-phase alternating-current supply.
A kind of portable prepared auto restart tester, simulation low-voltage customer circuit is made of low pressure PT module, low pressure PT module is made up of one group of auxiliary reclay and signal lamp, the coils from parallel connection of coils one termination dc power cathode of two auxiliary reclays, the other end is PT link YCDY, the group normally opened contact one termination A phase of two auxiliary reclays, B phase, C phase three-phase alternating-current supply, another termination simulation low-voltage customer circuit A phase, B phase, C phase three-phase alternating-current supply.
A kind of portable prepared auto restart tester, high pressure DL module is made of two-position relay and auxiliary reclay, pushbutton switch and pilot lamp, the twin coil one termination dc power cathode of two-position relay, the actuation coil other end by normally closed contact, close a pushbutton switch HC and connect a dc power anode, the involution coil other end is connected to branch position pushbutton switch FC and power selection switch DL33 end by normally opened contact, and power selection switch DL33 end is connected to prepared auto restart DL33 end; Two auxiliary reclay coil one termination dc power cathodes, the other end connects dc power anode by the normally opened contact of two-position relay; The red pilot lamp of group normally-open normally-close contact one termination of auxiliary reclay DL-K I, the green pilot lamp of another termination, the other end of red pilot lamp, green pilot lamp connects direct supply; Organize the Chang Kaiduan one termination GY1 of normally-open normally-close contact separately, another termination GY2; The group normally-open normally-close of auxiliary reclay DL-K II touches the connection prepared auto restart.
A kind of portable prepared auto restart tester, low pressure DL module is made of two-position relay and auxiliary reclay, pushbutton switch and pilot lamp, the twin coil one termination dc power cathode of two-position relay, the actuation coil other end by normally closed contact, close a pushbutton switch HC and connect a dc power anode, the involution coil other end is connected to branch position pushbutton switch FC and power selection switch DL33 end by normally opened contact, and power selection switch DL33 end is connected to prepared auto restart DL33 end; Two auxiliary reclay coil one termination dc power cathodes, the other end connects dc power anode by the normally opened contact of two-position relay; The red pilot lamp of group normally-open normally-close contact one termination of auxiliary reclay DL-K I, the green pilot lamp of another termination, the other end of red pilot lamp, green pilot lamp connects direct supply; Organize the Chang Kaiduan one termination GY1 of normally-open normally-close contact separately, another termination GY2; The group normally-open normally-close of auxiliary reclay DL-K II touches the connection prepared auto restart.
A kind of portable prepared auto restart tester, low pressure segmentation DL module is made of a two-position relay and two auxiliary reclays, the twin coil one termination dc power cathode of two-position relay, the actuation coil other end by normally closed contact, close bit switch HC and connect dc power anode, the involution coil other end is connected to prepared auto restart DL33 end by normally opened contact, power selection switch; Two auxiliary reclay coil one termination dc power cathodes, the other end connects dc power anode by the normally opened contact of two-position relay; The group normally-open normally-close contact one termination red light of auxiliary reclay DL-K I, another termination green light, the positive pole of common port wiring circle; Organize the common port one termination GY1 of normally-open normally-close contact separately, Chang Kaiduan meets GY2; The common port of two groups of normally-open normally-close contacts of auxiliary reclay DL-K II, Chang Kaiduan, normal-closed end connect prepared auto restart.
A kind of portable prepared auto restart tester, the power transmission path of simulation transforming plant primary system pipe network by a pair of normal opened contact in the isolating switch auxiliary contact of DL module, is connected in series according to the high and low pressure side order:
The isolating switch 1DL of high pressure---the isolating switch 2DL2 of low pressure---the isolating switch 5DL of low pressure segmentation---isolating switch 4DL of low pressure---the isolating switch 3DL of high pressure;
Insert a direct current sky on the isolating switch 1DL of high pressure and the 3DL10 respectively and open K1, K2, sky is opened the 220V air switch positive terminal of K1, K2 opposite side access direct current; The two ends of the isolating switch 5DL of low pressure segmentation respectively and between the isolating switch 2DL of low pressure and the 4DL2 direct current sky is set and opens K3, K4;
The isolating switch 1DL11 of high pressure incorporates on high-tension side PT module respectively into the isolating switch 2DL of air switch K1 contact and high pressure and air switch K2 contact; The isolating switch 2DL of low pressure and the isolating switch 4DL of air switch K3 contact and low pressure and air switch K4 contact are incorporated the PT module of low-pressure side respectively into.
The present invention adopts technique scheme, compared with prior art has following advantage:
The present invention can realize the function of prepared auto restart aut.eq. is made things convenient for accurately, checks reliably.Have low, the easy making of the cost of manufacture of maintenance, easily use, the power outage hidden danger of effectively avoiding actual belt switch transmission to bring improves power supply reliability, is the backup auto-activating device periodic inspection condition of providing convenience.The present invention has stronger economic benefit and social benefit, simultaneously, implements the permanent mechanism of cost efficiency for promoting State Grid Corporation of China, builds a conservation-minded society, economizing type enterprise makes due contribution.Advantage is as follows:
1, avoided complicated wiring, made simple and clear that the wiring of prepared auto restart calibration equipment becomes.
2, special control program is arranged, can simulate all prepared auto restart modes of prepared auto restart
3, can test the protection definite value of prepared auto restart protective device easily by control section, easy to operate, reliable results.
Description of drawings
Fig. 1 is the power transmission path panel figure of the primary system pipe network of portable prepared auto restart tester:
Fig. 2 is the principle of work block scheme of portable prepared auto restart tester;
Fig. 3 is the principle of work circuit diagram of mimic-disconnecting switch DL module;
Fig. 4 is the principle of work circuit diagram of mimic-disconnecting switch PT module.
Embodiment
Shown in Fig. 1,2,3,4: a kind of portable prepared auto restart tester, power transmission path with simulation transforming plant primary system pipe network, comprise: two-way simulated high-pressure bus circuit, two-way simulation low-voltage customer circuit and power supply, the high pressure DL module contact that described two-way simulated high-pressure bus circuit connects is opened with direct supply by sky respectively and is connected; Described high pressure DL module by low pressure DL module, sky is opened with simulate the low-voltage customer circuit is connected; Be provided with low pressure segmentation DL module between the two-way simulation low-voltage customer circuit.
Described simulated high-pressure bus circuit is made of high pressure P T module, high pressure P T module is made up of one group of auxiliary reclay and signal lamp, the coils from parallel connection of coils one termination dc power cathode of two auxiliary reclays, the other end is PT link YCDY, the group normally opened contact one termination A phase of two auxiliary reclays, B phase, C phase three-phase alternating-current supply, another termination simulated high-pressure bus circuit A phase, B phase, C phase three-phase alternating-current supply.
Described simulation low-voltage customer circuit is made of low pressure PT module, low pressure PT module is made up of one group of auxiliary reclay and signal lamp, the coils from parallel connection of coils one termination dc power cathode of two auxiliary reclays, the other end is PT link YCDY, the group normally opened contact one termination A phase of two auxiliary reclays, B phase, C phase three-phase alternating-current supply, another termination simulation low-voltage customer circuit A phase, B phase, C phase three-phase alternating-current supply.
Described high pressure DL module is made of two-position relay and auxiliary reclay, pushbutton switch and pilot lamp, the twin coil one termination dc power cathode of two-position relay, the actuation coil other end by normally closed contact, close a pushbutton switch HC and connect a dc power anode, the involution coil other end is connected to branch position pushbutton switch FC and power selection switch DL33 end by normally opened contact, and power selection switch DL33 end is connected to prepared auto restart DL33 end; Two auxiliary reclay coil one termination dc power cathodes, the other end connects dc power anode by the normally opened contact of two-position relay; The red pilot lamp of group normally-open normally-close contact one termination of auxiliary reclay DL-K I, the green pilot lamp of another termination, the other end of red pilot lamp, green pilot lamp connects direct supply; Organize the Chang Kaiduan one termination GY1 of normally-open normally-close contact separately, another termination GY2; The group normally-open normally-close of auxiliary reclay DL-K II touches the connection prepared auto restart.
Described low pressure DL module is made of two-position relay and auxiliary reclay, pushbutton switch and pilot lamp, the twin coil one termination dc power cathode of two-position relay, the actuation coil other end by normally closed contact, close a pushbutton switch HC and connect a dc power anode, the involution coil other end is connected to branch position pushbutton switch FC and power selection switch DL33 end by normally opened contact, and power selection switch DL33 end is connected to prepared auto restart DL33 end; Two auxiliary reclay coil one termination dc power cathodes, the other end connects dc power anode by the normally opened contact of two-position relay; The red pilot lamp of group normally-open normally-close contact one termination of auxiliary reclay DL-K I, the green pilot lamp of another termination, the other end of red pilot lamp, green pilot lamp connects direct supply; Organize the Chang Kaiduan one termination GY1 of normally-open normally-close contact separately, another termination GY2; The group normally-open normally-close of auxiliary reclay DL-K II touches the connection prepared auto restart.
Described low pressure segmentation DL module is made of a two-position relay and two auxiliary reclays, the twin coil one termination dc power cathode of two-position relay, the actuation coil other end by normally closed contact, close bit switch HC and connect dc power anode, the involution coil other end is connected to prepared auto restart DL33 end by normally opened contact, power selection switch; Two auxiliary reclay coil one termination dc power cathodes, the other end connects dc power anode by the normally opened contact of two-position relay; The group normally-open normally-close contact one termination red light of auxiliary reclay DL-K I, another termination green light, the positive pole of common port wiring circle; Organize the common port one termination GY1 of normally-open normally-close contact separately, Chang Kaiduan meets GY2; The common port of two groups of normally-open normally-close contacts of auxiliary reclay DL-K II, Chang Kaiduan, normal-closed end connect prepared auto restart.
During use, a kind of portable prepared auto restart tester, the power transmission and transformation circuit of simulation transforming plant primary system pipe network, the output voltage of prepared auto restart tester is all provided by system, not additional in addition alternating voltage input equipment; The prepared auto restart tester does not relate to current element, and prepared auto restart tester electric current criterion withdraws from when experimentizing; The prepared auto restart tester provides the mimic-disconnecting switch nodes of locations a pair of, comprises a normal opened contact and a normally closed contact; The circuit breaker closing lock signal is provided.
The present invention simulates the power transmission path of transforming plant primary system pipe network, by a pair of normal opened contact in the isolating switch auxiliary contact of DL module, is connected in series according to the high and low pressure side order:
The isolating switch 1DL of high pressure---the isolating switch 2DL2 of low pressure---the isolating switch 5DL of low pressure segmentation---isolating switch 4DL of low pressure---the isolating switch 3DL of high pressure;
Insert a direct current sky on the isolating switch 1DL of high pressure and the 3DL10 respectively and open K1, K2, sky is opened the 220V air switch positive terminal of K1, K2 opposite side access direct current; The two ends of the isolating switch 5DL of low pressure segmentation respectively and between the isolating switch 2DL of low pressure and the 4DL2 direct current sky is set and opens K3, K4; The isolating switch 1DL11 of high pressure incorporates on high-tension side PT module respectively into the isolating switch 2DL of air switch K1 contact and high pressure and air switch K2 contact; The isolating switch 2DL of low pressure and the isolating switch 4DL of air switch K3 contact and low pressure and air switch K4 contact are incorporated the PT module of low-pressure side respectively into.
One, the tester test wire inserts: the aviation plug side classification of tester being tested cable is inserted in " operation " and " signal " jack of each isolating switch analogue unit.Opposite side is connected to " DL1 ", " DL3 ", " DL33 " of mimic-disconnecting switch module 1DL respectively " common port ", " closing ", " branch " of backup auto-activating device 1# main transformer high-pressure side breaker operator terminal; " 801 I ", " 802 I ", " 803 I " are connected to " common port ", " closing signal ", " sub-signal " of backup auto-activating device 1# main transformer high-pressure side breaker signal terminal respectively.All the other 4 breaker modules are the same, corresponding relation is the corresponding 1# main transformer of a mimic-disconnecting switch module 1DL high-pressure side isolating switch, the corresponding 1# main transformer of mimic-disconnecting switch module 2DL low-pressure side isolating switch, the corresponding 2# main transformer of mimic-disconnecting switch module 3DL high-pressure side isolating switch, the corresponding 2# main transformer of mimic-disconnecting switch module 4DL low-pressure side isolating switch, the corresponding main transformer low-pressure side of mimic-disconnecting switch module 5DL section switch.
Two, experiment original state: power supply is switched handle beat to " device power supply " gear, the direct supply that the use test instrument provides in the test.And the direct current sky that will install is opened " ZLKK " and is exchanged sky and open " JLKK " and be pushed into conduction position.
To test switch " AN1 ", " AN2 ", " AN3 ", " AN4 " and be pushed into conduction position.
As: the verification main transformer is thrown the prepared auto restart logic of mode mutually, and experiment need be adjusted to closing position by pushbutton switch HC with mimic-disconnecting switch module 1DL, mimic-disconnecting switch module 2DL, mimic-disconnecting switch module 5DL.
Three, trystate: will test switch " AN3 " and be pushed into open position.Experiment switch " AN3 " is through " 4DL-GY2 " positive electricity disappearance to the mimic-disconnecting switch module 4DL of contact between " 5DL-GY1 " and " 5DL-GY2 " among the mimic-disconnecting switch module 5DL, experiment switch " AN4 ".Make the PT module of two low-pressure sides not have A phase, B phase, C phase three-phase alternating current.
Four, backup auto-activating device action: backup auto-activating device divides mimic-disconnecting switch module 1DL, and backup auto-activating device divides mimic-disconnecting switch module 2DL, and the backup auto-activating device matched moulds is intended breaker module 3DL, and the backup auto-activating device matched moulds is intended breaker module 4DL
,The action of simulation mutual inductor module makes the PT module of two low-pressure sides that A phase, B phase, C phase three-phase alternating current be arranged.
Five, the prepared auto restart logic function correctly meets the requirements, and tested device can add operation.
Claims (7)
1. portable prepared auto restart tester, it is characterized in that: power transmission path with simulation transforming plant primary system pipe network, comprise: two-way simulated high-pressure bus circuit, two-way simulation low-voltage customer circuit and power supply, the high pressure DL module contact that described two-way simulated high-pressure bus circuit connects is opened with direct supply by sky respectively and is connected; Described high pressure DL module by low pressure DL module, sky is opened with simulate the low-voltage customer circuit is connected; Be provided with low pressure segmentation DL module between the two-way simulation low-voltage customer circuit.
2. a kind of portable prepared auto restart tester as claimed in claim 1, it is characterized in that: the simulated high-pressure bus circuit is made of high pressure P T module, high pressure P T module is made up of one group of auxiliary reclay and signal lamp, the coils from parallel connection of coils one termination dc power cathode of two auxiliary reclays, the other end is PT link YCDY, the group normally opened contact one termination A phase of two auxiliary reclays, B phase, C phase three-phase alternating-current supply, another termination simulated high-pressure bus circuit A phase, B phase, C phase three-phase alternating-current supply.
3. a kind of portable prepared auto restart tester as claimed in claim 1, it is characterized in that: simulation low-voltage customer circuit is made of low pressure PT module, low pressure PT module is made up of one group of auxiliary reclay and signal lamp, the coils from parallel connection of coils one termination dc power cathode of two auxiliary reclays, the other end is PT link YCDY, the group normally opened contact one termination A phase of two auxiliary reclays, B phase, C phase three-phase alternating-current supply, another termination simulation low-voltage customer circuit A phase, B phase, C phase three-phase alternating-current supply.
4. a kind of portable prepared auto restart tester as claimed in claim 1, it is characterized in that: high pressure DL module is made of two-position relay and auxiliary reclay, pushbutton switch and pilot lamp, the twin coil one termination dc power cathode of two-position relay, the actuation coil other end by normally closed contact, close a pushbutton switch HC and connect a dc power anode, the involution coil other end is connected to branch position pushbutton switch FC and power selection switch DL33 end by normally opened contact, and power selection switch DL33 end is connected to prepared auto restart DL33 end; Two auxiliary reclay coil one termination dc power cathodes, the other end connects dc power anode by the normally opened contact of two-position relay; The red pilot lamp of group normally-open normally-close contact one termination of auxiliary reclay DL-K I, the green pilot lamp of another termination, the other end of red pilot lamp, green pilot lamp connects direct supply; Organize the Chang Kaiduan one termination GY1 of normally-open normally-close contact separately, another termination GY2; The group normally-open normally-close of auxiliary reclay DL-K II touches the connection prepared auto restart.
5. a kind of portable prepared auto restart tester as claimed in claim 1, it is characterized in that: low pressure DL module is made of two-position relay and auxiliary reclay, pushbutton switch and pilot lamp, the twin coil one termination dc power cathode of two-position relay, the actuation coil other end by normally closed contact, close a pushbutton switch HC and connect a dc power anode, the involution coil other end is connected to branch position pushbutton switch FC and power selection switch DL33 end by normally opened contact, and power selection switch DL33 end is connected to prepared auto restart DL33 end; Two auxiliary reclay coil one termination dc power cathodes, the other end connects dc power anode by the normally opened contact of two-position relay; The red pilot lamp of group normally-open normally-close contact one termination of auxiliary reclay DL-K I, the green pilot lamp of another termination, the other end of red pilot lamp, green pilot lamp connects direct supply; Organize the Chang Kaiduan one termination GY1 of normally-open normally-close contact separately, another termination GY2; The group normally-open normally-close of auxiliary reclay DL-K II touches the connection prepared auto restart.
6. a kind of portable prepared auto restart tester as claimed in claim 1, it is characterized in that: low pressure segmentation DL module is made of a two-position relay and two auxiliary reclays, the twin coil one termination dc power cathode of two-position relay, the actuation coil other end by normally closed contact, close bit switch HC and connect dc power anode, the involution coil other end is connected to prepared auto restart DL33 end by normally opened contact, power selection switch; Two auxiliary reclay coil one termination dc power cathodes, the other end connects dc power anode by the normally opened contact of two-position relay; The group normally-open normally-close contact one termination red light of auxiliary reclay DL-K I, another termination green light, the positive pole of common port wiring circle; Organize the common port one termination GY1 of normally-open normally-close contact separately, Chang Kaiduan meets GY2; The common port of two groups of normally-open normally-close contacts of auxiliary reclay DL-K II, Chang Kaiduan, normal-closed end connect prepared auto restart.
7. a kind of portable prepared auto restart tester as claimed in claim 1 is characterized in that: the power transmission path of simulation transforming plant primary system pipe network by a pair of normal opened contact in the isolating switch auxiliary contact of DL module, is connected in series according to the high and low pressure side order:
The isolating switch 1DL of high pressure---the isolating switch 2DL2 of low pressure---the isolating switch 5DL of low pressure segmentation---isolating switch 4DL of low pressure---the isolating switch 3DL of high pressure;
Insert a direct current sky on the isolating switch 1DL of high pressure and the 3DL10 respectively and open K1, K2, sky is opened the 220V air switch positive terminal of K1, K2 opposite side access direct current; The two ends of the isolating switch 5DL of low pressure segmentation respectively and between the isolating switch 2DL of low pressure and the 4DL2 direct current sky is set and opens K3, K4;
The isolating switch 1DL11 of high pressure incorporates on high-tension side PT module respectively into the isolating switch 2DL of air switch K1 contact and high pressure and air switch K2 contact; The isolating switch 2DL of low pressure and the isolating switch 4DL of air switch K3 contact and low pressure and air switch K4 contact are incorporated the PT module of low-pressure side respectively into.
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| CN201010558807.9A CN102033181B (en) | 2010-11-25 | 2010-11-25 | Portable spare power automatic switching calibrator |
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| CN201010558807.9A CN102033181B (en) | 2010-11-25 | 2010-11-25 | Portable spare power automatic switching calibrator |
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| CN103675554A (en) * | 2013-12-26 | 2014-03-26 | 国网河南省电力公司南阳供电公司 | Standby power source automatic switching device tester |
| CN104198832A (en) * | 2014-07-09 | 2014-12-10 | 中冶建工集团有限公司 | Comprehensive inspecting and testing method for high voltage power transformer and distribution substation |
| CN104360181A (en) * | 2014-10-08 | 2015-02-18 | 成都交大许继电气有限责任公司 | Method for quick fault diagnosis when spare power automatic switching of traction substation fails |
| CN104569802A (en) * | 2015-01-19 | 2015-04-29 | 国家电网公司 | Intelligent substation debugging system and primary isolating switch analog equipment |
| CN104898048A (en) * | 2013-05-22 | 2015-09-09 | 江苏省电力公司常州供电公司 | Backup power automatic switching device intelligent calibration system with high detection efficiency |
| CN105866566A (en) * | 2016-03-23 | 2016-08-17 | 国家电网公司 | Auxiliary device for automatic switching test of standby power supply |
| CN105954626A (en) * | 2016-06-22 | 2016-09-21 | 国网山东省电力公司莱芜供电公司 | Portable microcomputer bus protection apparatus tester |
| CN107942228A (en) * | 2017-11-20 | 2018-04-20 | 国网山东省电力公司泗水县供电公司 | Backup auto-activating device laboratory apparatus and experimental method based on mimic-disconnecting switch |
| CN112904134A (en) * | 2020-10-16 | 2021-06-04 | 国网山东省电力公司金乡县供电公司 | Uninterrupted power verification device for spare power automatic switching device, spare power automatic switching device and method |
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| CN104569802B (en) * | 2015-01-19 | 2018-01-09 | 国家电网公司 | A kind of intelligent substation debugging system and a disconnecting switch analog machine |
| CN104569802A (en) * | 2015-01-19 | 2015-04-29 | 国家电网公司 | Intelligent substation debugging system and primary isolating switch analog equipment |
| CN105866566A (en) * | 2016-03-23 | 2016-08-17 | 国家电网公司 | Auxiliary device for automatic switching test of standby power supply |
| CN105954626A (en) * | 2016-06-22 | 2016-09-21 | 国网山东省电力公司莱芜供电公司 | Portable microcomputer bus protection apparatus tester |
| CN107942228A (en) * | 2017-11-20 | 2018-04-20 | 国网山东省电力公司泗水县供电公司 | Backup auto-activating device laboratory apparatus and experimental method based on mimic-disconnecting switch |
| CN112904134A (en) * | 2020-10-16 | 2021-06-04 | 国网山东省电力公司金乡县供电公司 | Uninterrupted power verification device for spare power automatic switching device, spare power automatic switching device and method |
| CN112904134B (en) * | 2020-10-16 | 2023-06-13 | 国网山东省电力公司金乡县供电公司 | Backup automatic switching device uninterrupted power check device, backup automatic switching device and backup automatic switching method |
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