断路器保护需注意的问题

Several Important Issues on Breaker Protection

以南瑞继保电气有限公司生产的RCS-921A型断路器保护为例,详细介绍了断路器保护反措要求,着重论述了断路器保护不同于线路保护的起动元件特点,归纳了自动重合闸需引起注意的主要放电条件,分析了实现先重和后重的方式,对比了沟三接点和沟通三跳的特点和区别,最后总结了断路器保护测试技巧。

Take RCS-921A Breaker Protection of Nari-Relays Electric CO,LTD as an example,this paper introduces,in detail,the demand of anti-accident measures about the Breaker Protection,particularly discusses the characteristics of the starting element,in which the difference between Breaker Protection and Line Protection lies,sums up the main discharge conditions related to auto-reclosing,analyses the manners of early or late reclosure and finally summarizes the testing skills about the Breaker Protection.