High Voltage Dielectric Loss Diagnosis and Analysis of Shunt Capacitors between Breaks of 500 kV Circuit Breaker

YANG Yang; XU Qiang; CHEN An-ming; QIN Wei; GUO Rui; ZHANG Zhi-yong

doi:10.14044/j.1674-1757.pcrpc.2011.05.014

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High Voltage Dielectric Loss Diagnosis and Analysis of Shunt Capacitors between Breaks of 500 kV Circuit Breaker

更新时间：2024-09-14

- High Voltage Dielectric Loss Diagnosis and Analysis of Shunt Capacitors between Breaks of 500 kV Circuit Breaker
- POWER CAPACITOR & REACTIVE POWER COMPENSATION Vol. 32, Issue 5, Pages: 64-67(2011)
- 作者机构：
  
  四川省电力公司超(特)高压运行检修公司成都中心
- 作者简介：
- 基金信息：
- DOI：10.14044/j.1674-1757.pcrpc.2011.05.014
  CLC： TM531
- Published：2011，
- 稿件说明：
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[1]杨洋,许强,陈安明,覃伟,郭锐,张智勇.对某500kV开关断口间并联电容器的高压介损诊断及分析[J].电力电容器与无功补偿,2011,32(05):64-67.

YANG YANG, XU QIANG, CHEN AN-MING, et al. High Voltage Dielectric Loss Diagnosis and Analysis of Shunt Capacitors between Breaks of 500 kV Circuit Breaker. [J]. Power capacitor & reactive power compensation, 2011, 32(5): 64-67.
[1]杨洋,许强,陈安明,覃伟,郭锐,张智勇.对某500kV开关断口间并联电容器的高压介损诊断及分析[J].电力电容器与无功补偿,2011,32(05):64-67. DOI： 10.14044/j.1674-1757.pcrpc.2011.05.014.

YANG YANG, XU QIANG, CHEN AN-MING, et al. High Voltage Dielectric Loss Diagnosis and Analysis of Shunt Capacitors between Breaks of 500 kV Circuit Breaker. [J]. Power capacitor & reactive power compensation, 2011, 32(5): 64-67. DOI： 10.14044/j.1674-1757.pcrpc.2011.05.014.

摘要

通过对某500 kV开关断口间并联电容器的高压介损试验结果分析

指出此500 kV开关断口间并联电容器在例行试验所采用的10 kV测试电压下介损测得值超标

这是由于Gart-on效应的干扰使得测得值远远高于实际工作电压下的介损值。通过高压介损试验可以有效避免Garton效应的干扰

得到更能反映实际工作状态的测量结果

从而为状态诊断提供准确的判断依据。

Abstract

In this paper

through analyzing high voltage dielectric loss test result of shunt capacitors between breaks of certain 500 kV circuit breaker

the results show that the measured dielectric loss value exceeded the standard under 10 kV voltage during the routine test

this is due to the interference of Garton effect keeps the measured value much higher than the dielectric loss under actual operating voltage.The interference of Garton effect can be effectively avoided through high voltage dielectric test

the measured result of actual operating condition can be more reflected

and thus correct criteria evidence for condition diagnosis is provided.

关键词

开关断口间并联电容器介损Garton效应状态诊断

Keywords

shunt capacitor between open contacts of circuit breakerdielectric lossGarton effectcondition diagnosis

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