高压开关防跳回路异常分析及测试方法的改进

Analysis on abnormal electric hold-down circuit of switch and the improving method of test

通过对220kV弹簧操作机构断路器防跳回路异常的测试分析,提出了解决具体工程中防跳回路异常问题的方案。指出传统防跳回路试验方法已经不适用于弹簧操作机构断路器防跳回路试验,对传统防跳回路试验方法进行分析改进后给出了确定防跳回路是否完善的系统试验方法。

According to the analysis of the abnormal hold-down circuit of the 220 kV SF6 CB spring operative, a scheme to solve the problem in hold-down circuit of concrete project is presented. Basedonit, this paper elaborates insufficiency in the normal methods of test in the hold-down circuit for the spring operative mechanic switch. It analyzes the method of normal test and brings forward a more perfect methods of test in the hold-down circuit.