高电压技术2013，Vol.39Issue(1)：75-80,6.DOI:10.3969/j.issn.1003-6520.2013.01.011
SF6断路器预击穿引起并联电抗器合闸过电压的原因及防护措施
Overvoitage of Shunt Reactor Caused by Prebreakdown of SF6 Breaker and Protection Measures
摘要
Abstract
To ensure the safety of substation expanding and new shunt reactor operation, we researched the overvoltage of shunt reactor during switching-on process by theoretical analysis, tests and simulations, and theoretically analyzed the reasons of the overvoltage from two aspects, namely, mechanism of transient prebreakdown of SF6 breaker and reflection and refraction of wave. Moreover, we established a SF6 breaker prebreakdown model in ATP-EMTP to simulate the field tests. Tests and simulation results showed that the specific overvoltage on the reactor during process of switching-on could reach 4.0. However, simulation results showed that, with resistance and capacitance absorption equipment, the specific overvoltage could be decreased to 1. 68 in the same condition. Simulation results indicated that the absorption equipment could be an effective measure for overvoltage limitation, which not only decreased the systematic overvoltage but also restrained systematic harmonics. The pre-breakdown phenomenon introduced in this paper could be referred for protection of shunt reactor operation in substations.关键词
SF6断路器/预击穿/并联电抗器/ATP-EMTP/波的折反射/阻容吸收器Key words
SF6 breaker/ prebreakdown/ shunt reactor/ ATP-EMTP/ wave's reflection and refraction/ resistance and capacitance absorption equipment引用本文复制引用
安韵竹,文习山,张婷婷,马奎,王羽,陈小月..SF6断路器预击穿引起并联电抗器合闸过电压的原因及防护措施[J].高电压技术,2013,39(1):75-80,6.基金项目
中央高校基本科研业务费专项资金(2012207020204). （2012207020204）
