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.
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)
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)。
关键词
变压器
油色谱
验证分析
潜伏性故障
Transformer
Oil Chromatography
Validation analysis
Latent fault
