摘要
对一起水电站110kV线路保护连续误动事故进行了详细的分析,并通过反复模拟故障和对PT二次回路进行检测等方法,查找出因电压互感器二次回路两点接地造成110kV线路保护连续误动事故,同时给出了事故的检查分析过程,对落实电力系统继电保护及安全自动装置反事故措施具有良好的借鉴作用。
This paper analyzes some one line protection maloperation trip continously for a hydro electric station, searches for the reason on 110kV line relay maloperation by simulating breakdown and examining the PT secondary circuit at the same time.The paper discusses the process of checking the accident. The result shows that it is good for ensuring the anti-accident methods of relay protection and safety automatic unit in power system.
出处
《继电器》
CSCD
北大核心
2008年第7期86-87,91,共3页
Relay
关键词
电压互感器
保护
事故
分析
voltage transducer
protection
accident
analysis
