摘要
继电保护装置正确动作是保证电网安全稳定运行的关键,尤其是特殊原因导致母线失灵保护动作,更需要准确快速地查清动作原因,以最快的速度恢复电网运行。介绍了太平湾发电厂长甸电站一起因220 kV线路遭受雷击导致母线失灵保护动作跳闸的故障原因的分析及处理经过,查明了故障原因并提出了防范措施。因雷击线路而引起母线失灵保护动作跳闸的先例并不多见,这一故障的分析处理可为类似的保护动作分析提供借鉴。
Relay protection device acting correctly is the key to ensure the power grid operating safely and steadily, especially the bus failure protection action for special causes, needs to find out accurate reasons and recover normal operation quickly. The paper introduces a 220kV bus failure protection action caused by lightning stroke in Taipinwang power plant and its treatment process and methods, puts forward the preventive measures.
出处
《水电站机电技术》
2011年第2期31-34,64,共4页
Mechanical & Electrical Technique of Hydropower Station
关键词
雷电
失灵保护
动作
分析
lightning stroke
failure protection
action
analysis
