一起基于油色谱分析的变压器潜伏性故障分析  

Analysis of Tran sformer Late nt Fault Based on Oil Chromatogram Analysis

作　　者：伊锋 朱庆东 许伟 高志新 马国庆 孙承海 Yl Feng;ZHU Qing-dong;XU Wei;GAO Zhi-xin;MA Guo-qing;SUN Cheng-hai(State Grid Shandong Electric Power Research Institute,Ji'nan 250003,China)

机构地区：[1]国网山东省电力公司电力科学研究院,山东济南250003

出　　处：《变压器》2022年第2期61-67,共7页Transformer

基　　金：变压器综合监测智能预警和远程诊断关键技术研究及应用课题2:变压器状态的在线多参量智能预警技术研究(项目号:520626200070)。

摘　　要：针对某500kV变压器油色谱数据异常情况,采用改良的特征气体法、三比值法进行分析判断,结合局部放电试验进行验证分析,发现了一起变压器绝缘件受潮的潜伏性故障,通过后期返厂解体检查,查明了故障点,分析了故障原因,并提出了相关建议。According to the abnormal condition of oil chromatographic data of a 500kV transformer,the improved characteristic gas method and ratio method were used to analyze and judge,and the partial discharge test is used to verify and analyze,and a latent fault of transformer insulation is found out.Through the inspection,the fault point is found out,the cause of the fault is analyzed,and the relevant suggestions are are presen ted.

关 键 词：变压器 油色谱 验证分析 潜伏性故障 

分 类 号：TM406[电气工程—电器]