Failure and Preventive Measures Analysis on Grading Capacitor for 500 kV Circuit Breaker

WANG Guishan; LI Yinghong

doi:10.14044/j.1674-1757.pcrpc.2015.04.011

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Failure and Preventive Measures Analysis on Grading Capacitor for 500 kV Circuit Breaker

更新时间：2024-09-14

- Failure and Preventive Measures Analysis on Grading Capacitor for 500 kV Circuit Breaker
- POWER CAPACITOR & REACTIVE POWER COMPENSATION Vol. 36, Issue 4, Pages: 51-56(2015)
- 作者机构：
  
  南方电网超高压输电公司柳州局
- 作者简介：
- 基金信息：
- DOI：10.14044/j.1674-1757.pcrpc.2015.04.011
  CLC： TM561
- Published：2015，
- 稿件说明：
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[1]王贵山,李应宏.500kV断路器均压电容器故障与防护措施分析[J].电力电容器与无功补偿,2015,36(04):51-56.

WANG GUISHAN, LI YINGHONG. Failure and Preventive Measures Analysis on Grading Capacitor for 500 kV Circuit Breaker. [J]. Power capacitor & reactive power compensation, 2015, 36(4): 51-56.
[1]王贵山,李应宏.500kV断路器均压电容器故障与防护措施分析[J].电力电容器与无功补偿,2015,36(04):51-56. DOI： 10.14044/j.1674-1757.pcrpc.2015.04.011.

WANG GUISHAN, LI YINGHONG. Failure and Preventive Measures Analysis on Grading Capacitor for 500 kV Circuit Breaker. [J]. Power capacitor & reactive power compensation, 2015, 36(4): 51-56. DOI： 10.14044/j.1674-1757.pcrpc.2015.04.011.

摘要

针对主网内500 k V断路器均压电容器频繁故障的问题

文章对500 k V断路器均压电容器的作用、热损耗机理进行了研究

并结合近期发生的多起故障分析了瓷外套充SF6陶瓷均压电容器、复合外套油浸全膜介质均压电容器、瓷外套油浸膜纸介质均压电容器的故障特征及原因

最后以此为基础

从设备安全运行维护、人身安全角度对500 k V断路器均压电容器的故障提出了有效的防护措施。

Abstract

As for the issue of frequent fault of grading capacitor for the 500 k V circuit breaker in the main power network

in this paper

the function and thermal loss mechanism of the grading capacitor for the500 k V circuit breaker is studied. The fault features of such grading capacitors as ceramic filled with SF6

oil immersed and oil-paper capacitor are analyzed with combination of recently occurred several faults and

on the basis of which

effective preventive measures on the capacitor for the 500 k V circuit breaker is proposed from the perspective of equipment safety

operation and maintenance and personnel security.

关键词

均压电容器故障分析热损耗防护措施

Keywords

grading capacitorfailure analysisthermal losspreventive measures

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Related Author

ZHANG Zongxi

ZHANG Zhi-yong

GUO Rui

TAN Wei

CHENG An-ming

XU Qiang

YANG Yang

LI Yinghong

Related Institution

State Grid Sichuan Electric Power Research Institute

Sichuan Electric Power Corporation Extra

Liuzhou Bureau of China Southern Power Grid Transmission Company

High Voltage Switchgear Co.,Ltd.,New Northeast Electric Group

Maintenance & Test Center of EHV Power Transmission Company,China Southern Power Grid

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