Effect of Arc-gap Resistance on Transient Recovery Voltage of Generator Circuit Breaker

DAN Shuheng; YU Xiaohan

doi:10.13296/j.1001-1609.hva.2018.12.006

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Effect of Arc-gap Resistance on Transient Recovery Voltage of Generator Circuit Breaker

更新时间：2025-04-26

- Effect of Arc-gap Resistance on Transient Recovery Voltage of Generator Circuit Breaker
- High VoltageApparatus Vol. 54, Issue 12, Pages: 36-42(2018)
- 作者机构：
  
  上海电力学院
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2018.12.006
  CLC： TM31;TM561
- Published：2018
- 稿件说明：
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[1]淡淑恒,余潇寒.弧隙电阻对发电机断路器瞬态恢复电压的影响研究[J].高压电器,2018,54(12):36-42.

DAN Shuheng, YU Xiaohan. Effect of Arc-gap Resistance on Transient Recovery Voltage of Generator Circuit Breaker[J]. High voltageapparatus, 2018, 54(12): 36-42.
[1]淡淑恒,余潇寒.弧隙电阻对发电机断路器瞬态恢复电压的影响研究[J].高压电器,2018,54(12):36-42. DOI： 10.13296/j.1001-1609.hva.2018.12.006.

DAN Shuheng, YU Xiaohan. Effect of Arc-gap Resistance on Transient Recovery Voltage of Generator Circuit Breaker[J]. High voltageapparatus, 2018, 54(12): 36-42. DOI： 10.13296/j.1001-1609.hva.2018.12.006.

摘要

瞬态恢复电压是发电机断路器的一项重要指标

在开断短路故障时具有决定性意义。弧隙电阻作为发电机断路器开断过程中的内部因素

是否对瞬态恢复电压产生影响并未有人进行过研究。文中利用电磁暂态仿真软件ATP-EMTP计算分析系统开断三相短路故障时

不同弧隙电阻发电机断路器的瞬态恢复电压（transient recovery voltage

TRV）

并研究了弧隙电阻与瞬态恢复电压波形之间联系。仿真结果表明:发电机断路器在开断故障过程中TRV的上升率与弧隙电阻的上升率成正相关关系

通过降低弧隙电阻上升率可以降低TRV的上升率;发电机断路器开断过程中

电流过零后弧隙电阻阻值大的断路器产生的瞬态恢复电压峰值小

提高电流过零后弧隙电阻的阻值可以降低产生的瞬态恢复电压峰值。

Abstract

To reveal the effect of arc-gap resistance on transient recovery voltage of a generator circuit breaker during breaking process

the electromagnetic transient simulation software ATP-EMTP is employed to analyze the transient recovery voltage of the generator circuit breaker with different arc-gap resistance during breaking a three-phase short circuit fault

and obtain the relationship between the transient recovery voltage and the arc-gap resistance.Simulation shows that the rise rate of the transient recovery voltage positively relates to the climb rate of the arc-gap resistance

so the reduction of the climb rate of arc-gap resistance results in a decrease of the rise rate of transient recovery voltage;and in the breaking process

the generator circuit breaker with higher arc-gap resistance generates smaller peak value of the transient recovery voltage.

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