110kV XLPE电缆GIS终端局部放电检测技术综合应用  

The Integrated Application of Partial Discharge Detection Techniques in 110 kV XLPE Cable GIS Terminal

作　　者：邓世聪 朱正国 陈腾彪 罗杰 钟建灵 邬韬 

机构地区：[1]深圳供电局,广东深圳518001

出　　处：《南方电网技术》2012年第3期38-42,共5页Southern Power System Technology

摘　　要：对深圳电网一起典型的110 kV XLPE电缆GIS终端局部放电异常,通过综合采用基于超高频-超声波术的GIS局部放电检测技术和基于电磁耦合分离诊断的高压电缆局部放电检测技术,精确定位该电缆GIS终端局部放电是由内锥绝缘子缺陷所致,并指出此缺陷是产品质量问题,且由于出厂试验时局部放电项目漏检而成为隐患。因此,对高压交联电缆终端产品出厂检测提出了改进建议。To a typical case occurred in Shenzhen Power Grid in which 110 kV XLPE cable GIS terminal partially abnormally discharges,by using the comprehensive partial discharge detection technique based on ultra-high frequency/ultrasonic and electromagnetic coupling separation,this paper locates accurately the fault position and discovers that the cone insulator defect caused the discharging,pointing out that the defect is a product quality problem and becomes a hidden trouble due to missing partial discharge test of products,and thus proposing suggestions for improving the products test of high pressure cross linking cable terminal.

关 键 词：高压电缆 GIS终端 局部放电检测 内锥绝缘子 

分 类 号：TM835[电气工程—高电压与绝缘技术]