500kV油浸式变压器典型故障的分析与处理  

Analysis and Treatment of Typical Faults of 500kV Oil Immersed Transformer

作　　者：毕磊 BI Lei(Yunnan Huadian Jinsha River Midstream Hydropower Development Co.,Ltd.,Ahai Power Generation Branch,Diqing 674100,China)

机构地区：[1]云南华电金沙江中游水电开发有限公司阿海发电分公司,云南迪庆674100

出　　处：《云南水力发电》2022年第4期205-209,共5页Yunnan Water Power

摘　　要：主要介绍阿海水电厂多台油浸式主变压器、电抗器运行过程中出现的胶囊破损造成油中含气量升高、油箱本体结合缝定位销孔持续渗油、高压套管介损突增、油色谱在线监测装置载气进入主变引起离线色谱检测油中H2含量升高等问题的分析及处理过程。This paper mainly describes the capsule breakage occurring during the operation of several oilimmersed main transformers and reactors in Ahai Power Plant.It causes the increase of gas content in the oil and continuous oil seepage through the locating pin hole of the combination joint of the tank body.At the same time,it also causes problems such as abrupt increase of dielectric loss of high-pressure sleeve,increase of H2 content in off-line chromatographic detection oil caused by carrier gas of oil chromatographic on-line monitoring device entering main transformer.These problems are analyzed and dealt with in this paper.

关 键 词：油浸式变压器 含气量升高处理 高压套管介损 特征气体异常 

分 类 号：TM407[电气工程—电器] TM411.1