220 kV电容式电压互感器介损试验不拆一次引线分析  

Non-Removing Primary Leading Wire Analysis of 220 kV Capacitor Voltage Transformer Dielectric Loss Test

作　　者：戴钦来[1] 刘小波[1] 熊华维[1] 杨帆[1] DAI Qin-lai;LIU Xiao-bo;XIONG Hua-wei;YANG Fan(Jiangxi Electric Power Corporation Maintenance Branch, Nanchang 333000, China)

机构地区：[1]国网江西省电力公司检修分公司,江西南昌333000

出　　处：《电工电气》2017年第7期59-61,共3页Electrotechnics Electric

摘　　要：对于220kV电容式电压互感器(CVT)上节介损试验时,需要登高攀爬瓷瓶拆除电容式电压互感器一次引线,而反接法则无需拆除一次引线。介绍了反接法误差屏蔽原理及接线实现,通过现场试验证明新方法行之有效。同时对下节自激法不拆除一次引线误差进行了试验分析,分析结果表明自激法试验不拆除一次引线所引起的误差可以忽略不计。As testing for220kV capacitor voltage transformer upper segment capacitor dielectric loss,it is necessary to ascend a heightand climb the china bottle to remove the capacitor voltage transformer(CVT)primary leading wire,on the other hand,the reversed connectionneedn’t remove the primary leading wire.Introduction was made to the error shielding principle of the reversed connection and connectionimplement.The field test verified the effectiveness of this new method.At the same time this paper carried out experimental analysis forthe error of lower segment self-excited method without removing the primary leading wire.The analysis result shows that the error caused bythe self-excited test without removing the primary leading wire can be ignored.

关 键 词：220KV电容式电压互感器 介损试验 不拆除一次引线 

分 类 号：TM451.2[电气工程—电器]