Live detection and analysis of internal parts looseness of 550kV gas insulated switchgear
Song Dongbo1, Huang Jie2, Yang Wei1, Qin Shaorui1, Zhang Guobao1
1. State Grid Anhui Electric Power Company Limited Research Institute, Hefei 230022; 2. State Grid Anhui Electric Power Company Limited Training Center, Hefei 230022
Abstract:Live detection can detect potential defects of equipment in time. It is one of the important means to evaluate the running state of equipment. Detection and analysis of some internal parts looseness defects in 550kV gas insulated switchgear (GIS) are introduced. The defects are diagnosed and located by ultrasonic method, ultra-high frequency method partial discharge technology and X-ray imaging technology. Disassembly inspection confirms that the defects are caused by the loosening or falling off of the fastening bolt of the particle trap in GIS.
宋东波, 黄洁, 杨为, 秦少瑞, 张国宝. 550kV气体绝缘金属封闭开关内部部件松动的带电检测分析[J]. 电气技术, 2019, 20(11): 112-116.
Song Dongbo, Huang Jie, Yang Wei, Qin Shaorui, Zhang Guobao. Live detection and analysis of internal parts looseness of 550kV gas insulated switchgear. Electrical Engineering, 2019, 20(11): 112-116.