220kV变压器油中溶解气体异常原因及处理  

Abnormality of Dissolved Gas in Oil of a 220 kV Transformer and Its Treatment

作　　者：褚建华[1] 朱凤弟[1] 王秋娥[1] 

机构地区：[1]中国长江电力股份有限公司检修厂,湖北宜昌443002

出　　处：《水电与新能源》2014年第11期59-61,64,共4页Hydropower and New Energy

摘　　要：介绍了葛洲坝水电站1台220 kV变压器油中溶解气体异常的情况,通过气相色谱法、故障产气速率计算、热点温度估算分析故障产生的原因,用比值法判断故障类型,查明了故障的原因,提出了处理措施。Abnormality of dissolved gas in the oil of a 220 kV transformer in Gezhouba hydropower station is described . The causes for such problem is analyzed with gas chromatography , abnormal aerogenesis speed calculation , estimation of hotspot temperature .With the ratio method , the type of such fault is determined .Treatment measures are then pro-posed .

关 键 词：变压器 油中溶解气体 分析 

分 类 号：TM407[电气工程—电器]