中文摘要：

针对40．5kV真空断路器开断并联电抗器的工况．为了消除现有仿真模型的不足，笔者简单综述了真空断路器开断感性小电流的仿真研究的现状，对一种型号的40．5kV真空断路器进行了试验，得到其触头间介质动态绝缘强度曲线、高频电流熄灭判据和截流数据，并建立了断路器开断并联电抗器的三相仿真模型，同时考虑了三相间的耦合。应用ATP—EMTP软件进行了该型号真空断路器开断并联电抗器的三相仿真研究，并与现场试验结果进行了比对，仿真结果与试验结果大致相符。

英文摘要：

Aiming at the operating conditions of 40.5 kV vacuum circuit breaker switching off shunt reactors, and in order to eliminate deficiencies in the existing simulation model, a general review of simulating researches on vacuum circuit breakers switching off small reactive current is given. A three-phase model of 40.5 kV circuit breakers switching off shunt reactors is set up based on the experimental results of a type of 4.5 kV vacuum circuit breaker, including the dielectric strength characteristics, high-frequency current quenching criteria and chopping current. And the interphase coupling is considered in the model. A three-phase simulation is conducted for the transient process of the vacuum circuit breaker switching off shunt reactors via ATP-EMTP, and the simulation results coincide almost with experimental results.