Fault Analysis of External Fuse Group Blowing in Capacitor Banks

HU Hai-an

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Fault Analysis of External Fuse Group Blowing in Capacitor Banks

更新时间：2024-09-14

- Fault Analysis of External Fuse Group Blowing in Capacitor Banks
- POWER CAPACITOR & REACTIVE POWER COMPENSATION Vol. 30, Issue 4, Pages: 55-58(2009)
- 作者机构：
  
  苏州供电公司
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM531.4
- Published：2009，
- 稿件说明：
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[1]胡海安.运行中发生电容器组熔断器全爆的故障分析[J].电力电容器与无功补偿,2009,30(04):55-58.

HU HAI-AN. Fault Analysis of External Fuse Group Blowing in Capacitor Banks. [J]. Power capacitor & reactive power compensation, 2009, 30(4): 55-58.
[1]胡海安.运行中发生电容器组熔断器全爆的故障分析[J].电力电容器与无功补偿,2009,30(04):55-58. DOI：

HU HAI-AN. Fault Analysis of External Fuse Group Blowing in Capacitor Banks. [J]. Power capacitor & reactive power compensation, 2009, 30(4): 55-58. DOI：

摘要

从市区某变电站发生一起运行中的35 kV电容器组外熔断器群爆入手

根据现场该电容器组外熔断器全部熔断的事实

分析了故障发生时保护装置动作的波形图、故障后的电气试验结果和电容器现场安装情况

从电容器组和外熔断器安装的角度分析了导致外熔断器全部熔断的暂态过电压产生原因

最后得出电容器组及熔断器安装不当

在特殊情况下有可能发生暂态过电压导致熔断器群爆的结论。

Abstract

This paper describes the fault

external fuse group blowing in an operating 35 kV capacitor banks

occurred at certain substation of urban area.According to the facts that all the external fuses were blown

the digital waveform replayed from the fault protection system

the electrical test results and the field installation of the capacitor banks in the fault are analyzed.The cause of transient over-voltage leading to complete fusing of external fuse is analyzed from the point of view of the installation of the capacitor bank and external fuse.And the final conclusion is made that inappropriate installation between the capacitor banks and the external fuses would

in case of special condition

induce fuse group blowing due to by over-voltage.

关键词

熔丝群爆电容器组暂态过电压故障分析

Keywords

Fuse group blowingcapacitor banksTransient over-voltagefault analysis

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