运行中的GIS不同部位盘式绝缘子超宽频带局部放电特性试验研究  

Experimental Study on the UWF Partial Discharge Characteristics of the Disk-spacers in Different Parts of GIS in Service

作　　者：屈博 

机构地区：[1]河南平煤集团电务厂,河南平顶山467000

出　　处：《高压电器》2007年第1期43-44,48,共3页High Voltage Apparatus

摘　　要：采用超宽频带局部放电测试系统,研究了玉泉变运行中的110kV电压等级GIS各关键部位盘式绝缘子的超宽频带局部放电信号。试验结果发现,运行中的GIS不同部位的盘式绝缘子具有各不相同的局部放电特征,且放电频率主要集中在300MHz频率段以下,为今后GIS在线监测提供了数值依据。By using an ultra-wide frequency band partial discharge detecting system, the discharge signal from disk-type spacer in key part of 110kV GIS （which is used in Yuquan power supply substation） is acquired and studied. It is found that spacers in different parts of GIS have their own partial discharge characteristics, and their discharge frequencies concentrate below 300 MHz, which provide numerical reference for the on-line monitoring of GIS.

关 键 词：GIS 盘式绝缘子 局部放电 超宽频带 

分 类 号：TM216[一般工业技术—材料科学与工程]