摘要
介绍了一起国产化9FA机组并网后发变组保护开入量装置掉电,导致发电机低频过流保护误动跳机的事件;分析掉电后保护动作过程,提出了整改方案。
This paper introduces an event that the binary input device of generator-transformer-group protection of a demestication 9FA unit losted power after synchronization,the low-frequency over-current protection misoperated and thus caused the unit trip.The paper analyzes the process of protection after the power falled down,and presents rectification measures
出处
《电力与电工》
2010年第3期44-45,共2页
Electric Power and Electrical Engineering
关键词
9FA机组
发变组保护
开入量装置
低频过流保护
9FA-unit
generator-transformer-group protection
binary input device
low-frequency over-current protection
