Analysis on Repeatedly Multiphase Restrike Fault of Shunt Capacitor during Opening Operations

WANG Qing-jun1; LIU Jing1; HU Xue-bin1; FU Zhong1; NIE Shi-guang1

doi:10.14044/j.1674-1757.pcrpc.2012.04.014

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Analysis on Repeatedly Multiphase Restrike Fault of Shunt Capacitor during Opening Operations

更新时间：2024-09-14

- Analysis on Repeatedly Multiphase Restrike Fault of Shunt Capacitor during Opening Operations
- POWER CAPACITOR & REACTIVE POWER COMPENSATION Vol. 33, Issue 4, Pages: 70-73(2012)
- 作者机构：
  
  1. 安徽省电力科学研究院
  2. 电力工业电力电容器质量检验中心
  3. 安徽六安供电公司
- 作者简介：
- 基金信息：
- DOI：10.14044/j.1674-1757.pcrpc.2012.04.014
  CLC： TM531.4
- Published：2012，
- 稿件说明：
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[1]王庆军,刘静,胡学斌,傅中,聂士广.一起并联电容器分闸多次多相重击穿故障分析[J].电力电容器与无功补偿,2012,33(04):70-73.

WANG QING-JUN1, LIU JING1, HU XUE-BIN1, et al. Analysis on Repeatedly Multiphase Restrike Fault of Shunt Capacitor during Opening Operations. [J]. Power capacitor & reactive power compensation, 2012, 33(4): 70-73.
[1]王庆军,刘静,胡学斌,傅中,聂士广.一起并联电容器分闸多次多相重击穿故障分析[J].电力电容器与无功补偿,2012,33(04):70-73. DOI： 10.14044/j.1674-1757.pcrpc.2012.04.014.

WANG QING-JUN1, LIU JING1, HU XUE-BIN1, et al. Analysis on Repeatedly Multiphase Restrike Fault of Shunt Capacitor during Opening Operations. [J]. Power capacitor & reactive power compensation, 2012, 33(4): 70-73. DOI： 10.14044/j.1674-1757.pcrpc.2012.04.014.

摘要

在变电站补偿电容器损坏经常发生

特别是在使用真空断路器切除无功补偿用并联电容器时

这严重影响了并联电容器的安全运行。本文针对一起较为少见的并联电容器组分闸多次多相重击穿故障

结合故障录波数据及对故障电容器的解体检查

用ATPDraw仿真程序模拟了这一过程

分析认为电容器用真空断路器分闸时多次重击穿产生的过电压及涌流是电容器绝缘击穿故障的主要原因

降低投切电容器用真空断路器的重燃率对于减少并联电容器故障至关重要。

Abstract

Capacitor damage is a frequent occurrence in the substation

which

especially in switching shunt capacitor by vacuum circuit breaker

affects seriously safe operation of shunt capacitor.For repeatedly multi-phase restrike fault of shunt capacitor during opening operation in this paper

the process is simulated by ATPDraw simulation procedure based on data of wave recorder and disassembly inspection of capacitor.The analysis results indicate that the main reason of the capacitor dielectric breakdown is the overvoltage and inrush current which caused by multiple restrikes during the vacuum circuit breaker opening;and reduce reignition rate of vacuum circuit breaker switching capacitor is crucial to reduce the fault of shunt capacitor.

关键词

并联电容器真空断路器ATPDraw仿真重燃过电压

Keywords

shunt capacitorvacuum breakerATPDraw simulationreignitionovervoltage

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