开断电容器组的过电压和真空断路器的应用

Overvoltage of Interrupting Capacitor Set and Application of Vaccum C.B.

本文从断路器的灭弧过程概要分析和论述了在开断电容电路时,可能会出现重燃和重击穿现象导致很高过电压的原因,其过电压的大小与选用断路器的灭弧能力有关.同时论述了真空断路器的特点和应用.

Starting from the arc extinction process of C.B., here is given a general analysis about the causes of the possible presentation of extremely high overvoltage, resulting from the re-burning and re-breaking-down phenomena when capacitive circuits are interrupted. The magnitude of overvoltage depends on the extinction capacity of the selected C.B.. The paper also describes both characteristics and applications of vaccum C.B..