Internal Fuse Performance of High Voltage Capacitor Unit

YAN Fei; HE Huiwen; WANG Zijian; YIN Ting; CHENG Zheng

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Internal Fuse Performance of High Voltage Capacitor Unit

更新时间：2025-12-08

- Internal Fuse Performance of High Voltage Capacitor Unit
- Vol. 42, Issue 6, Pages: 1790-1796(2016)
- 作者机构：
  
  1. 中国电力科学研究院
  2. 华北电力大学河北省输变电设备安全防御重点实验室
  3. 国网江西省电力公司
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published Online：30 June 2016，
  
  Published：2016
- 稿件说明：
移动端阅览
YAN Fei, HE Huiwen, WANG Zijian, et al. Internal Fuse Performance of High Voltage Capacitor Unit[J]. 2016, 42(6): 1790-1796.
DOI：

YAN Fei, HE Huiwen, WANG Zijian, et al. Internal Fuse Performance of High Voltage Capacitor Unit[J]. 2016, 42(6): 1790-1796. DOI：

摘要

内熔丝是高压电容器极间短路故障的重要保护措施

但是关于内熔丝分析计算目前还没有成熟的方法

内熔丝尺寸主要靠经验进行设计。为了得到电容器内熔丝的设计原则

开展了电容器元件击穿时的等值电路以及二阶电路理论分析

以特高压工程用BAM6.56-556-1W型电容器单元为例进行了计算、软件仿真和验证试验

得出了电容器元件击穿时流过击穿元件支路的暂态电流表达式和注入与击穿元件串联内熔丝能量的计算方法。利用该计算式得到的结果与EMTP-ATP软件仿真及试验结果一致

该成果解决了高压电容器单元用内熔丝能量计算和参数选择问题

研究成果可供内熔丝电容器设计参考。

Abstract

Internal fuse is an important protective device against inter-electrode short-circuit of high voltage capacitor. However

no reliable method can be used in internal fuse analysis and selection. Currently

the parameters of the internal fuse are determined according to field experience. To solve the parameters selection problem of capacitor internal fuse

according to equivalent electrical circuits of a broken-down capacitor element and the second order circuit theory

the transient current flowed through broken-down device and the energy injected into internal fuse series connected with the capacitor are derived and given when the capacitor unit is broken-down. Taking BAM6.56-556-1W capacitor for UHV project as example

we carried out theoretical calculation

simulation and verification test

and the calculation

simulation and experimental results are consistent. The results can solve the internal fuse parameters selection problem of high voltage capacitor which can be taken as a reference to capacitor internal fuse design.

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