一起35kV主变内部放电故障分析  

Analysis of an Internal Discharge Fault of 35kV Main Transformer

作　　者：李舟 刘爱文 刘奇 LI Zhou;LIU Aiwen;LIU Qi(Yiyang Electric Power Branch,State Grid Hunan Electric Power Co.,Ltd.,Yiyang 413000,China)

机构地区：[1]国网湖南省电力有限公司益阳供电分公司,湖南益阳413000

出　　处：《电工技术》2023年第23期153-154,158,共3页Electric Engineering

摘　　要：某35 kV主变内部放电导致主变故障跳闸,经过现场检查、油色谱试验、电气试验、继电保护分析及返厂吊芯检查,准确定位了故障部位,并深入分析了故障原因,提供了相似主变内部故障预防及处置经验。A 35 kV main transformer tripped due to internal discharge fault.The fault location is accurately determined after conducting a series of measures including on-site inspection,chromatographic analysis,electrical test,relay protection analysis,and return-to-factory inspection.The cause of the fault was also analyzed in depth,which may provide useful experience for prevention and treatment of similar main transformer internal faults.

关 键 词：油色谱试验 电气试验 继电保护 变压器 诊断 

分 类 号：TM407[电气工程—电器]