摘要
介绍了穿零序电流互感器电缆接地线接线错误,导致单相接地故障时,小电流接地选线装置不选线,综保后台不报警的故障案例,并对接地故障现象进行了分析、判断和处理。
The fault example that when the grounding connection error of the zero sequence current transformer cable results in single phase grouding fault, the small current grounding wire selection device does not select wire and the comprehensive protection backstage does not give an alarm is introduced, and the grounding fault phenomenon is analyzed, diagnosed and treated.
出处
《建筑电气》
2008年第11期40-42,共3页
Building Electricity
关键词
小电流接地系统
接线
零序电流互感器
选线装置
Small current grouding system Connection Zero sequence current transformer Wire selection device
