±1100 kV特高压直流线路避雷器高空不拆卸试验技术及应用  

High Altitude Non-Disassembly Test Technology and Application of±1100 kV UHV DC Transmission Line Surge Arrester

作　　者：伍弘 郝金鹏 丁培 刘世涛 杨凯 王玄 陈炜 庞小龙 WU Hong;HAO Jinpeng;DING Pei;LIU Shitao;YANG Kai;WANG Xuan;CHEN Wei;PANG Xiaolong(Electric Power Research Institute of State Grid Ningxia Electric Power Co.,Ltd.,Yinchuan 750011,China;State Grid Ningxia Electric Power Co.,Ltd.,Yinchuan 750001,China;Maintenance Company of State Grid Ningxia Electric Power Co.,Ltd.,Yinchuan 750022,China)

机构地区：[1]国网宁夏电力有限公司电力科学研究院,银川750011 [2]国网宁夏电力有限公司,银川750001 [3]国网宁夏电力有限公司检修公司,银川750022

出　　处：《电瓷避雷器》2023年第3期31-37,共7页Insulators and Surge Arresters

基　　金：国家电网公司总部科技项目(编号:5200-201920077A-0-0-00)。

摘　　要：针对±1100 kV特高压直流线路避雷器因安装位置高、拆卸风险大等原因导致例行试验工作量大、成本高、风险隐患多的问题,从特型化试验装备和现场试验方法入手,提出了一种用于特高压直流线路避雷器的高空不拆线、不拆卸试验技术,并在±1100 kV吉泉线3380号塔的避雷器例行试验中进行了应用。结果表明,采用一体式直流高压发生器并通过预先接线方式对避雷器进行高空不拆卸试验可有效提高检修效率,且试验结果准确性满足相关要求。Aiming at the problems of heavy workload,high cost and many potential risks of routine test caused by high installation position and high disassembly risk of±1100 kV UHV DC line arrester,a non-disassembly test technology for UHV DC line arrester installed high is proposed based on special test equipment and field test method.This kind of new test technology had been applied to the outage routine tests of surge arresters of±1100 kV Jiquan line No.3380 tower.The results showed that the maintenance efficiency of the arrester could be improved effectively by using an integrated DC high voltage generator and pre-wiring,and the accuracy of the test results could comply with the relevant requirements.

关 键 词：特高压直流线路 避雷器 不拆卸试验 直流高压发生器 例行试验 

分 类 号：TM863[电气工程—高电压与绝缘技术]