一起主变压器高压绕组损坏事故检测与分析  

Detection and Analysis on HV Winding Damage of A Main Transformer

作　　者：罗杨 杨红权 刘彦琴 刘鑫 李波 周波 高峻 姜飞宇 Luo Yang;Yang Hongquan;Liu Yanqin;Liu Xin;Li Bo;Zhou Bo;Gao Jun;Jiang Feiyu(State Grid Chengdu Electric Power Supply Company, Chengdu 610041, Sichuan, China)

机构地区：[1]国网四川省电力公司成都供电公司,四川成都610041

出　　处：《四川电力技术》2021年第5期59-63,共5页Sichuan Electric Power Technology

摘　　要：对一起线路短路故障导致主变压器高压绕组损坏事故进行了分析。通过油化试验和高压电气试验,初步确定烧蚀部位位于主变压器高压侧C相主绕组靠下部位,并通过吊罩检查得以验证。A case of HV winding damage of main transformer caused by short-circuit fault of transmission line is analyzed.Through the oil test and electric test,it is demonstrated that the damaged area is located in the lower part of main winding of phase C in high voltage side of main transformer,and it is confirmed through the overhaul of transformer cover.

关 键 词：主变压器 短路冲击 绕组损坏 油中溶解气体 

分 类 号：TM406[电气工程—电器]