摘要
结合向家坝水电站一起厂用电保护越级跳闸事件,分析了厂用电保护配置、保护整定计算及400 V备自投逻辑中存在的风险,提出了改进措施,可为厂用电保护的可靠运行提供参考。
An override tripping accident of the auxiliary power protection in Xiangjiaba Hydropower Station is analyzed. The protection configuration and setting calculation of the auxiliary power, and the possible risks in the operation logic of the 400 V automatic switchover backup power system are discussed. Treatment measures are proposed correspondingly. It could be a useful reference for the reliable operation of auxiliary power protection systems.
出处
《水电与新能源》
2016年第8期63-65,74,共4页
Hydropower and New Energy
关键词
越级跳闸
保护配置
整定计算
风险分析
override tripping
protection configuration
setting calculation
risk analysis
