CN104459523B - 10 kV vacuum circuit breaker opening time on-load automatic testing method - Google Patents

10 kV vacuum circuit breaker opening time on-load automatic testing method Download PDF

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Publication number
CN104459523B
CN104459523B CN201410308744.XA CN201410308744A CN104459523B CN 104459523 B CN104459523 B CN 104459523B CN 201410308744 A CN201410308744 A CN 201410308744A CN 104459523 B CN104459523 B CN 104459523B
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China
Prior art keywords
time
circuit breaker
opening time
normally
tester
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CN201410308744.XA
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CN104459523A (en
Inventor
李建龄
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TIANJIN NINGHE POWER SUPPLY CO Ltd
State Grid Corp of China SGCC
State Grid Tianjin Electric Power Co Ltd
Original Assignee
TIANJIN NINGHE POWER SUPPLY CO Ltd
State Grid Corp of China SGCC
State Grid Tianjin Electric Power Co Ltd
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Application filed by TIANJIN NINGHE POWER SUPPLY CO Ltd, State Grid Corp of China SGCC, State Grid Tianjin Electric Power Co Ltd filed Critical TIANJIN NINGHE POWER SUPPLY CO Ltd
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Publication of CN104459523A publication Critical patent/CN104459523A/en
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Abstract

The invention discloses a 10 kV vacuum circuit breaker opening time on-load automatic testing method. A normally-closed contact of a circuit breaker auxiliary switch is connected to one end of a time tester, a normally-opened contact of an electrified displayer is connected to the other end of the time tester to form a starting loop for measuring opening time, and the opening time of the vacuum circuit breaker is measured. When the circuit breaker is opened, the normally-closed contact of the auxiliary switch is closed (the circuit breaker is located at the closing position and the normally-opened contact of the electrified displayer is closed), the starting loop of the time tester is connected, the normally-opened contact of the electrified displayer is opened after the circuit breaker is opened, the starting loop of the time tester is disconnected, and measured time difference is the opening time of circuit breaker. After the 10 kV vacuum circuit breaker opening time on-load automatic testing method is adopted, real-time online monitoring can be performed on the circuit breaker, vacuum degree state analysis can be performed by comparing opening time parameters, and safe and reliable operation in a complete period of a device is ensured.

Description

10kV vacuum circuit breaker opening time on-load automatic test approach
Technical field
The present invention relates to power transformation switch testing field, more particularly to a kind of 10kV vacuum circuit breakers opening time on-load Automatic test approach.
Background technology
10kV breaker routine test interval times are 6 to 9 years.Breaker long-play, particularly 10kV electric capacity break The frequently division automatically of road device, being susceptible to vacuum reduces or punctures, it is impossible to correctly cut-off load current and short circuit current.If Vacuum is reduced or punctured, and separating brake actuation time must be increased when cut-offfing load current and short circuit current, can not be gone out when serious Arc causes breaker to explode.
The content of the invention
In order to realize breaker open operation time real time on-line monitoring, a kind of 10kV vacuum circuit breakers opening time band is developed Load automatic test approach, can carry out real time on-line monitoring, by opening time parameter using after this kind of method to breaker Comparison, the state analysis of vacuum can be carried out, it is ensured that equipment complete period safe and reliable operation.
The 10kV vacuum circuit breaker opening time on-load automatic test approach that the present invention is provided, uses auxiliary switch for circuit breaker Normally-closed contact is connected to one end of time tester, and electrification display normally opened contact is connected to the other end of time tester and constitutes measurement The starting-up later time of opening time, measures to vacuum circuit breaker opening time, and when breaker open operation, auxiliary switch is normally closed touches Point closure, the starting-up later time of (breaker is closed in closing position electrification display normally opened contact) turn-on time tester breaks Electrification display normally opened contact is opened after the device separating brake of road, the starting-up later time of turn-off time tester, and the time difference of this measurement is just It is the breaker open operation time.
According to the present invention, real time on-line monitoring can be carried out to breaker using after this kind of method, by joining to opening time Several comparisons, can carry out the state analysis of vacuum, it is ensured that equipment complete period safe and reliable operation.
Description of the drawings
Fig. 1 shows that 10kV vacuum circuit breakers opening time on-load automatic test approach of the invention is used The schematic diagram of the embodiment of individual system.
Specific embodiment
Specific embodiment of the invention is illustrated below in conjunction with the accompanying drawings.
Many details are elaborated in the following description in order to fully understand the present invention, but, the present invention may be used also Implemented with being different from other modes described here using other, therefore, the present invention is not limited to following public concrete reality Apply the restriction of example.
Fig. 1 shows that 10kV vacuum circuit breakers opening time on-load automatic test approach of the invention is used The schematic diagram of the embodiment of individual system.In figure, RF is capacitive divider, and K is little switch.
As illustrated, the 10kV vacuum circuit breaker opening time on-load automatic test approach that the present invention is provided, with open circuit Device auxiliary switch FZ normally-closed contacts are connected to one end of time tester SJC, and the normally opened contact of electrification display DX1, DX2, DX3 connects The other end to time tester SJC constitutes the starting-up later time of measurement opening time, and vacuum circuit breaker opening time is surveyed Amount, the auxiliary switch normally-closed contact closure when breaker open operation, (breaker is closed in closing position electrification display normally opened contact Close) starting-up later time of turn-on time tester SJC, electrification display normally opened contact is opened after breaker open operation, and turn-off time surveys The starting-up later time of examination instrument SJC, the time difference of this measurement is exactly the breaker open operation time.
According to the present invention, real time on-line monitoring can be carried out to breaker using after this kind of method, by joining to opening time Several comparisons, can carry out the state analysis of vacuum, it is ensured that equipment complete period safe and reliable operation.
The preferred embodiments of the present invention are the foregoing is only, the present invention is not limited to, for the skill of this area For art personnel, the present invention can have various modifications and variations.It is all within the spirit and principles in the present invention, made any repair Change, equivalent, improvement etc., should be included within the scope of the present invention.

Claims (1)

1. a kind of 10kV vacuum circuit breakers opening time on-load automatic test approach, it is characterised in that opened with breaker auxiliary One end that normally-closed contact is connected to time tester is closed, electrification display normally opened contact is connected to the other end of time tester and constitutes survey The starting-up later time of amount opening time, measures to vacuum circuit breaker opening time, and when breaker open operation, auxiliary switch is normally closed The closing of contact, the starting-up later time of turn-on time tester, electrification display normally opened contact is opened after breaker open operation, turn-off time The starting-up later time of tester, the time difference of this measurement is exactly the breaker open operation time.
CN201410308744.XA 2014-06-30 2014-06-30 10 kV vacuum circuit breaker opening time on-load automatic testing method Active CN104459523B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410308744.XA CN104459523B (en) 2014-06-30 2014-06-30 10 kV vacuum circuit breaker opening time on-load automatic testing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410308744.XA CN104459523B (en) 2014-06-30 2014-06-30 10 kV vacuum circuit breaker opening time on-load automatic testing method

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CN104459523A CN104459523A (en) 2015-03-25
CN104459523B true CN104459523B (en) 2017-04-19

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107887224B (en) * 2017-10-24 2023-09-01 山东泰开高压开关有限公司 Switching-on and switching-off speed measuring device and measuring method of vacuum circuit breaker

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2266144Y (en) * 1996-04-27 1997-10-29 张永祥 Off and on time metering device for portable circuit breaker
US6472877B1 (en) * 1997-06-25 2002-10-29 Chevron U.S.A., Inc. Method and apparatus for measuring the opening time of a medium voltage air circuit breaker
CN101118275A (en) * 2007-07-30 2008-02-06 国网南京自动化研究院 On-line monitoring methods for high-voltage circuit-breaker switching on-off time
CN203587767U (en) * 2013-11-28 2014-05-07 国家电网公司 Circuit breaker time testing device

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56158966A (en) * 1980-05-13 1981-12-08 Hitachi Ltd Method and circuit for measuring opening time difference of breaker

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2266144Y (en) * 1996-04-27 1997-10-29 张永祥 Off and on time metering device for portable circuit breaker
US6472877B1 (en) * 1997-06-25 2002-10-29 Chevron U.S.A., Inc. Method and apparatus for measuring the opening time of a medium voltage air circuit breaker
CN101118275A (en) * 2007-07-30 2008-02-06 国网南京自动化研究院 On-line monitoring methods for high-voltage circuit-breaker switching on-off time
CN203587767U (en) * 2013-11-28 2014-05-07 国家电网公司 Circuit breaker time testing device

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
真空断路器行程及分合闸速度的测量;钱毅;《上海电力》;20080430(第4期);第390-391、405页 *
高压断路器的分闸控制电路及分闸时间的测量方法;苏东青 等;《电世界》;20070731(第7期);第371-373页 *

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