摘要
针对一起220 kV变电站GIS隔离开关气室放电故障,通过检查现场一次设备、查阅保护录波图、解体GIS隔离开关气室,得出隔离开关C相气室地刀动触头屏蔽罩对筒壁放电应为异物引发所致,而主刀静触头屏蔽罩对筒体放电是本起故障的重要原因。
In view of a discharge fault in the GIS isolating switch air chamber of a in a 220 kV substation,by checking the on-site primary equipment,reviewing the protection recording diagram,and dismantling the GIS isolation gas chamber,it is concluded that the discharge of the knife moving contact shielding cover of the disconnector C phase gas chamber to the cylinder wall should be caused by foreign matter,and the discharge of the cylinder by the main knife static contact shielding cover is an important cause of this failure.
作者
黄亚艺
HUANG Yayi(Fujian Zhongshisuo Electric Power Testing&Commissioning Co.,Ltd.,Fuzhou 350007,China)
出处
《电工技术》
2023年第16期176-178,共3页
Electric Engineering
关键词
GIS
放电
异物
GIS
discharge
foreign matter