一起500kV自耦变压器故障分析  

Fault Analysis of A 500kV Auto-Transformer

作　　者：徐德增 熊锦州 李士杰 陆海 袁瑞敏 张秋实 XU De-zeng;XIONG Jin-zhou;LI Shi-jie;LU Hai;YUAN Rui-min;ZHANG Qiu-shi(EHV Power Transmission Company Maintenance&Test Center,CSG,Guangzhou 510663,China)

机构地区：[1]南方电网超高压输电公司检修试验中心,广东广州510663

出　　处：《变压器》2020年第11期69-73,共5页Transformer

摘　　要：本文中作者基于自耦变压器的基本原理和录波装置记录的电压、电流变化情况,判断了一起500kV自耦变压器故障的形成原因,并通过解体检查验证了故障分析结果的正确性,并给出相应的运维建议。Based on the basic principle of auto-transformer and the change of recorded voltage and current by the recording device,the fault cause of a 500 kV auto-transformer is judged,and the correctness of fault analysis results is verified by disassembly inspection,and the corresponding operation and maintenance suggestions are given.

关 键 词：自耦变压器 匝间短路 串联绕组 绝缘围屏 

分 类 号：TM406[电气工程—电器]