一台220kV主变磁屏蔽缺陷的查找及处理  

Analysis and Treatment of Magnetic Shielding Fault about a 220kV Main Transformer

作　　者：杜岩伟[1] 夏中原 郑卫东[1] 罗道军[1] 

机构地区：[1]南阳供电公司,河南南阳473000 [2]河南电力试验研究院,河南郑州450052

出　　处：《河南电力》2009年第4期31-33,共3页Henan Electric Power

摘　　要：某变电站一台220kV主变色谱分析呈过热特征,通过色谱跟踪分析、红外测温、电气试验等多种手段,最后吊罩检查确认是由于油箱内壁上的磁屏蔽板安装缺陷而引起的;提出了将磁屏蔽板用引线接地的改进建议。The chromatographic analysis of a 220kV main transformer revealed its overheating fault in a transformer substation.The reason for the overheating fault was all that fault installing of the magnetic shielding in the internal wall of the transformer tank by the means of the chromatographic analysis, infrared temperature measure,electricity test and suspending tank.The improvement advice that the magnetic shielding plate should be grounded through the ground lead is brought forward.

关 键 词：变压器 磁屏蔽 缺陷 色谱分析 处理 

分 类 号：TM407[电气工程—电器]