This paper built a circuit model to simulate the reignition over-voltage of phase-controlled circuit breaker's opening shunt reactor using ATP/EMTP,an electromagnetic transient simulation software.Electromagnetic transient process of opening the shunt reactor and the reignition over-voltage which happens in the circuit breaker were also been analysed.And the paper further discussed the influence of the rise rate of circuit breaker dielectric strength,power frequency peak voltage and pre-arcing time on the reignition over-voltage.This paper also gives some basic methods to calculate and determine specified parameters of circuit to avoid reignition happening.%采用电磁暂态仿真分析软件ATP/EMTP对相控切除并联电抗器的重燃过程建模,分析相控切除电抗器时产生的过电压特别是加载在断路器断口上的暂态恢复电压,讨论断路器灭弧室介质绝缘强度上升率(RRDS)、系统工频相电压峰值、相控分断电抗器预燃弧时间的设定等因素对重燃现象的影响,给出了为避免重燃3个变量的合理选择方法.所做研究对相控分断并联电抗器的实际应用有一定的指导作用.
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