接触器栅片灭弧室介质恢复强度及重燃过程的分析

Analysis of Dielectric Recovery Strength and Reignition Process in Iron Splitters Chambers of AC Contactor

交流接触器的电寿命与其过零时期的介质强度恢复过程有密切的关系，测量了几种栅片灭弧室的介质恢复强度，分析了栅片灭弧室介质强度的恢复过程和重燃过程。通过对栅片水平放置和竖直放置灭弧室中电弧运动状况的分析，比较了它们对重燃过程及介质恢复过程的影响。

The process of dielectric recovery in the period of current zero has a close relation with the electric life in AC contactors.In this paper,the recovery strength of several arc chambers with iron splitters differently placed is measured.Based on the experimental results and the characteristics of the arc movement in the chambers with iron splitters horizontally and vertically placed,the different influences on the process of reignition and the dielectric recovery are analyzed.