油中溶解气体分析在变压器故障判断中的应用  

Application of Analyzing Dissolved Gas in Oil to Fault Diagnosis of Transformers

作　　者：彭岳 PENG Yue(Shandong Shiheng Power Plant of China Energy Investment,Feicheng 271625,China)

机构地区：[1]国家能源集团山东石横热电有限公司,山东肥城271625

出　　处：《电工技术》2023年第21期194-196,共3页Electric Engineering

摘　　要：通过一起变压器故障案例,结合“三比值法”“四比值法”产气速率、温度测算等分析方法,逐一对内部故障的可能性做出判断,通过现场吊罩检修证实了溶解气体分析变压器故障的准确性。结合实际处理过程,提出了保障变压器可靠运行的预防措施及建议。With respect to a transformer′s typical fault case,through methodological combination of"three ratio method","four ratio method",gas production rate,temperature measurement,etc.,this paper makes a judgment on possibility of each internal fault,and confirms the accuracy of dissolved gas analysis for transformer faults determination through on-site hanging hood maintenance.Combined with the actual treatment process,preventive measures and suggestions to ensure reliable operation of transformers are put forward.

关 键 词：油中溶解气体 油浸式变压器 比值法 故障判断 

分 类 号：TM407[电气工程—电器]