摘要
基于一起35 kV变压器的有载调压分接开关故障,对其进行油色谱分析、短路阻抗、绕组变形、绕组直流电阻和有载调压分接开关切换时间和动作顺序试验,结合解体检查,分析出了事故原因及过程,并提出了整改措施。
Based on the on-load voltage regulating tap changer fault of a 35 kV transformer, the test were carried out for the oil chromatographic analysis, short-circuit impedance, winding deformation, winding DC resistance and on-load voltage regulating tap changer switching time and action sequence. Combined with disassembly inspection, the cause and process of the fault were analyzed, and improvement measures were proposed.
作者
李小萌
周炳华
王晓程
LI Xiaomeng;ZHOU Binghua;WANG Xiaocheng(State Grid Songjiang Power Supply Company,SMEPC,Shanghai 201699,China)
出处
《电力与能源》
2020年第1期56-61,90,共7页
Power & Energy
关键词
输配电设备
变压器
有载调压分接开关
储能弹簧
transmission and distribution equipment
transformer
on-load pressure regulating tap changer
energy storage spring
