变压器箱体螺栓异常发热的原因分析与处理方法  

Cause Analysis and Treatment of Abnormal Heating of Transformer Box Bolts

作　　者：高琦 朱叶叶 周阳 徐俊 GAO Qi;ZHU Yeye;ZHOU Yang;XV Jun(State Grid Suzhou Power Supply Company,Suzhou 215000,China)

机构地区：[1]国网江苏省电力公司苏州供电公司,江苏苏州215000

出　　处：《电工技术》2021年第6期64-65,共2页Electric Engineering

摘　　要：通过红外测温巡检发现变压器箱体多个连接螺栓发热严重。通过理论分析变压器正常运行过程中的漏磁通分布,结合现场实际经验,找出异常发热原因,提出了采用不锈钢螺栓或导流铜排进行磁通短路处理的措施。Through infrared temperature inspection,it is found that many connecting bolts of transformer box are seriously heated.Through theoretical analysis of the leakage flux distribution during the normal operation of the transformer,combined with the actual experience on the spot,the cause of abnormal heating is found out,and measures to use stainless steel bolts or diversion copper bars for magnetic flux short-circuit treatment are proposed.

关 键 词：红外测温 漏磁通 磁屏蔽措施 不锈钢螺栓 导流铜排 

分 类 号：TM407[电气工程—电器]