基于各次谐波法的MOA阻性电流检测方法探讨  

Discussion on Resistive Current Detection of MOA Based on Harmonic Analysis Method

作　　者：陈楠[1] 

机构地区：[1]武汉供电公司徐东营业所,湖北武汉430077

出　　处：《华中电力》2009年第6期60-63,共4页Central China Electric Power

摘　　要：金属氧化物避雷器(MOA)的小电流特性决定了它的工频稳定性,其阻性电流的变化能反映MOA老化或受潮的状态。介绍了MOA检测原理及常用检测方法,利用各次谐波法对ZnO阀片阻性电流进行了测试,取得了较好的效果。The working stability of MOA depends on the electric characteristics in small current region.The variation of the resistive current reflects aging or internal moisture of MOA.In this paper,the common used detecting methods of MOA are first reviewed,a ZnO varistor is tested,and the resistive current is detected by harmonic analysis method.

关 键 词：MOA 阻性电流 各次谐波法 

分 类 号：TM862[电气工程—高电压与绝缘技术]