一起220kV变压器过热故障分析  

Analysis of a 220kV transformer overheat fault

作　　者：王吉庆 李培豪 刘爱丽 满凯凯 刘立群 WANG Ji-qing;LI Pei-hao;LIU Ai-li;MAN Kai-kai;LIU Li-qun(State Grid Binzhou Power Supply Company,Binzhou 256600,China)

机构地区：[1]国网滨州市供电公司,山东滨州256600

出　　处：《电气传动自动化》2020年第1期62-64,共3页Electric Drive Automation

摘　　要：对一起220kV变压器过热故障进行了分析。首先通过油样色谱分析判断该变压器故障的类型,然后逐一排查变压器油箱内部各构件,最后诊断出故障原因为构件环流问题造成了变压器局部温度过高。An overheat fault of 220 kV transformer is analyzed. Firstly,the type of the transformer fault is determined by oil chromatography analysis. Then,the internal components of the transformer tank are checked one by one. Finally,the fault cause is diagnosed as the circulation problem of the components,which causes the transformer with too high local temperature.

关 键 词：变压器油 特征气体 紧固螺杆 绝缘套裂纹 环流 

分 类 号：TM42[电气工程—电器]