摘要
六氟化硫封闭式组合电器(GIS)设备在电力系统中得到广泛运用。但是由于GIS在电流互感器(TA)布置方面的特殊性及GIS设备故障的隐蔽性,往往给事故分析带来一定的难度,因此提高GIS设备故障的二次分析能力,对于快速判断故障点,保障系统安全运行有重要意义。文中通过一起220 kV GIS设备内部故障引起的保护动作实例,结合故障录波分析了保护动作的全过程,提出了对于GIS设备内部故障的二次分析方法。
Sulphur hexafluoride gas insulated switchgear（GIS） equipment is used widely in power system.However,due to the special set of current transformer（TA） and the imperceptibility of fault in GIS,it is more difficult in the GIS fault analysis.Thus,improving the failure analysis of GIS is very important for fast fault spot judging and the security of system operation.In the paper,through studying relay action caused a case of fault in 220 kV GIS equipment,the whole protection process was analyzed combined with the fault recording.And the secondary analysis method for GIS internal fault was put forward,which could be used for reference.
出处
《江苏电机工程》
2011年第4期18-20,共3页
Jiangsu Electrical Engineering
