一起OLTC储能弹簧断裂引起的故障分析及改进措施  

Fault Analysis and Improvement Measures Caused by OLTC Energy Storage Spring Breaking

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)

机构地区：[1]国网上海市电力公司松江供电公司,上海201699

出　　处：《电力与能源》2020年第1期56-61,90,共7页Power & Energy

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.

关 键 词：输配电设备 变压器 有载调压分接开关 储能弹簧 

分 类 号：TM73[电气工程—电力系统及自动化]