ZN12-10开关在运行中拒动的分析  

Analysis for Refused Action of Operating ZN12-10 Breaker

作　　者：黄勇[1] 肖平[1] 

机构地区：[1]宜宾电业局,四川宜宾644002

出　　处：《四川电力技术》2008年第4期58-59,共2页Sichuan Electric Power Technology

摘　　要：对一起由于10 kV出线故障而造成越级跳110 kV主变低压侧总路的事故原因进行了详细的分析,介绍了事故的检查处理过程,得出了开关机构动作时序特性和保护整定配合不协调的原因,并给出解决方法,对于防止类似ZN12-10开关在运行中拒动的事故发生具有很好的借鉴作用。A trouble of one lOkV power line caused an over - trip to the breaker of lowest voltage side of the main llOkV transformer. This paper analyzed the accident in detail, introduced the inspecting process and found the reason that the machinery features didnt correspond with the protection - settings. Solutions were summarized. This paper supplies a very good reference on avoiding the occurrence of similar accidents that ZN12 - 10 breaker may refuse to act when fault happens.

关 键 词：保护 开关 拒动 事故 

分 类 号：TM564[电气工程—电器]