摘要
对某电厂一起380 V辅机动配箱电机接地故障引发辅机双路电源失电、机组停运的事故进行分析,并提出了改进措施,以防止今后同类型事故的再次发生。
A 380 V auxiliary motor box motor ground fault occurred in a power plant,causing the power loss of the auxiliary unit′s dual power supply and the unit to stop operation.Improvements are proposed to prevent the recurrence of similar accidents in the future.
作者
彭荣
PENG Rong(Guangzhou Development Power Technology Co.,Ltd.,Guangzhou 511458,China)
出处
《电工技术》
2022年第23期279-280,283,共3页
Electric Engineering
关键词
接地保护
选择性
越级跳闸
双电源切换
零序保护定值
ground protection
selectivity
skipping the level
dual power switching
zero-order protection fixed values
