摘要
某大型水电站左岸GIS开关站电压等级500 kV,自投运以来,在线监测系统发现某测点间歇性局部放电信号,近一年持续放电且超过监测系统量程。利用局部放电定位仪对该局放源进行了定位,经过分析和简单处理,在不拆卸GIS设备的情况下消除了间歇性局部放电现象。
In the500kV GIS switch station in a large-scale hydropower station,intermittent partial discharge signals are observed in a measurement point by the online monitoring system since the operation of the station.In the past year,the discharge fault is continuously observed and the occurrence frequency is beyond the range of the monitoring system.With the partial discharge location device,the discharge sources are located.Then,possible causes of this fault are analyzed and treatment measures are implemented.Without dismantling the GIS equipment,the intermittent partial discharge issue is fully resolved.
作者
徐铬
冉应兵
刘谦驰
贾敬礼
王基发
赵高利
XU Ge;RAN Yingbing;LIU Qianchi;JIA Jingli;WANG Jifa;ZHAO Gaoli(China Yangtze Power Co., Ltd., Yichang 443000, China)
出处
《水电与新能源》
2018年第12期31-35,共5页
Hydropower and New Energy
关键词
水电站
GIS
特高频法
局部放电
hydropower station
GIS
UHF method
partial discharge
