基于超高频法的典型GIS局部放电检测  

Detection of Typical GIS Partial Discharge Based on UHF Method

作　　者：孙曙光[1,2] 陆俭国[1] 俞慧忠 沈建位 金少华[1] 

机构地区：[1]河北工业大学,天津300130 [2]浙江开关厂有限公司,衢州324000

出　　处：《高压电器》2012年第4期7-12,共6页High Voltage Apparatus

基　　金：浙江省科技计划项目(2010C31098);河北省应用基础研究计划重点基础研究项目(10962126D)~~

摘　　要：GIS局部放电检测是GIS绝缘状态监测的一种科学有效的方法。笔者构建了GIS实验模型以及基于超高频法的局部放电在线检测系统,对GIS中典型的几种局部放电特征进行了研究,采用基于相位的分析模式详细分析了不同放电类型在不同电压条件下的放电特征,并结合常规局部放电测试仪,对UHF信号的放电量进行估计,为进一步进行放电类型的智能模式识别及研究超高频信号与放电量关系提供了试验依据,以提高UHF局部放电检测的工程实用性。GIS partial discharge detection is a scientific and effective way for insulation condition monitoring.A GIS model and the detection system based on UHF method has been set up.Several typical GIS partial discharge is studied and using power phase analysis a detailed analysis of characteristics under different voltage is made;Combined with conventional partial discharge detection method,the partial discharge quantity estimation of UHF signal is also made.All of these lay a foundation for the study of partial discharge intelligent recognition and the relationship between UHF signal and partial discharge quantity to improve the engineering utility of UHF partial discharge detection.

关 键 词：GIS 局部放电 超高频 相位分析 放电量 

分 类 号：TM835[电气工程—高电压与绝缘技术]