Modeling of Two-phase Restrike Caused by Vacuum Breaker Switching off Capacitors Bank Based on EMTP

LIU Shenghui; LIU Wenze; WANG Keying

doi:10.13296/j.1001-1609.hva.2015.05.005

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Modeling of Two-phase Restrike Caused by Vacuum Breaker Switching off Capacitors Bank Based on EMTP

更新时间：2025-04-26

- Modeling of Two-phase Restrike Caused by Vacuum Breaker Switching off Capacitors Bank Based on EMTP
- High VoltageApparatus Vol. 51, Issue 5, Pages: 26-30(2015)
- 作者机构：
  
  1. 广东电网有限责任公司江门供电局
  2. 华南理工大学电力学院
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2015.05.005
  CLC： TM561.2
- Published：2015
- 稿件说明：
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[1]刘生辉,刘文泽,王克英.真空断路器切除电容器组导致两相重燃的EMTP建模[J].高压电器,2015,51(05):26-30.

LIU Shenghui, LIU Wenze, WANG Keying. Modeling of Two-phase Restrike Caused by Vacuum Breaker Switching off Capacitors Bank Based on EMTP[J]. High voltageapparatus, 2015, 51(5): 26-30.
[1]刘生辉,刘文泽,王克英.真空断路器切除电容器组导致两相重燃的EMTP建模[J].高压电器,2015,51(05):26-30. DOI： 10.13296/j.1001-1609.hva.2015.05.005.

LIU Shenghui, LIU Wenze, WANG Keying. Modeling of Two-phase Restrike Caused by Vacuum Breaker Switching off Capacitors Bank Based on EMTP[J]. High voltageapparatus, 2015, 51(5): 26-30. DOI： 10.13296/j.1001-1609.hva.2015.05.005.

摘要

断路器介质恢复强度不能耐受恢复电压的作用

会导致电弧重燃

产生很高的重燃电压。笔者应用EMTP对真空断路器切除并联电容器组导致两相重燃过程进行建模

并以广东电网某典型220 kV变电站为研究实例。仿真计算了重燃过电压最严重的工况

对比理论分析值

仿真结果真实可信。

Abstract

Reginition voltage is high when vacuum breakers are restriked if dielectric recovery strength is less than recovery voltage. In this paper

the model of the process two-phase restirke caused by switching off capacitors bank is built with EMTP and a 220 kV substation of Guangdong grid is researched.The most serious case is stimulated.Compared with theoretical result

simulation result is valid and practical.

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