110kV变压器绕组直流电阻不平衡原因与应对措施分析  

Causes and Countermeasures of DC Resistance Unbalance of 110 kV Transformer Winding

作　　者：马华 MA Hua(Zhongwei Power Supply Company of State Grid Ningxia Electric Power Co.,Ltd.,Ningxia 755000,China)

机构地区：[1]国网宁夏电力有限公司中卫供电公司,宁夏755000

出　　处：《集成电路应用》2023年第6期104-105,共2页Application of IC

摘　　要：阐述变压器各档位高压绕组直流电阻测试数据的分析、变更测试方法、绝缘油色谱试验、解体检修方法,探讨分接开关筒壁触头接触不良引起绕组直流电阻不平衡超标的原因。This paper expounds the analysis of the DC resistance test data of the highvoltage winding at each gear of the transformer,the change of the test method,the insulation oil chromatography test,and the disassembly maintenance method,and probes into the causes of the imbalance of the winding DC resistance caused by the poor contact of the tap changer wall contact.

关 键 词：变压器 绕组电阻 不平衡 

分 类 号：TM407[电气工程—电器]