Analysis and Study on Internal Insulation Fault of 35 kV Shunt Capacitor

FENG Ruming; ZHAO Jianli; YANG Bo; ZHAO Lei; ZHAO Xiayao

doi:10.14044/j.1674-1757.pcrpc.2021.05.003

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Analysis and Study on Internal Insulation Fault of 35 kV Shunt Capacitor

更新时间：2024-09-14

- Analysis and Study on Internal Insulation Fault of 35 kV Shunt Capacitor
- POWER CAPACITOR & REACTIVE POWER COMPENSATION Vol. 42, Issue 5, Pages: 14-20(2021)
- 作者机构：
  
  内蒙古电力科学研究院
- 作者简介：
- 基金信息：
- DOI：10.14044/j.1674-1757.pcrpc.2021.05.003
  CLC： TM53
- Published：2021，
- 稿件说明：
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FENG RUMING, ZHAO JIANLI, YANG BO, et al. Analysis and Study on Internal Insulation Fault of 35 kV Shunt Capacitor. [J]. Power capacitor & reactive power compensation, 2021, 42(5): 14-20.
DOI：

FENG RUMING, ZHAO JIANLI, YANG BO, et al. Analysis and Study on Internal Insulation Fault of 35 kV Shunt Capacitor. [J]. Power capacitor & reactive power compensation, 2021, 42(5): 14-20. DOI： 10.14044/j.1674-1757.pcrpc.2021.05.003.

摘要

本文对某500 kV变电站35 kV 314电容器组在AVC系统投入314断路器时发生爆炸事故进行调查

根据现场设备检查和故障录波情况

从电容器的内部结构、工作原理、不平衡保护特点及耐爆能量等多个角度出发

分析总结故障的发展过程、产生的直接和间接原因

最后给出了相应的建议措施

将对提高该类型电容器运行可靠性具有积极的指导作用。

Abstract

The explosion of 35 kV 314 capacitor bank at one 500 k V substation

in the case of operation of 314 circuit breaker in the AVC system

is investigated. According to the inspection of the equipment and fault recording at site

the development process of the fault and the direct as well as indirect causes are analyzed and summarized from such aspects as internal structure

working principle

unbalanced protection feature and bursting energy resistance of the capacitor. Finally

the corresponding recommendation and measures are given

which have positive guidance in improving reliable operation of such type of capacitor.

关键词

电容器组内熔丝断路器过电压故障分析措施

Keywords

capacitor bankinternal fusecircuit breakerovervoltagefault analysismeasures

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