1000kV交流输电线路带电作业组合间隙研究  

Research on Live Working Complex Gap for 1000kV AC Transmission Lines

作　　者：胡毅[1] 王力农[1] 刘凯[1] 邵瑰玮[1] 郑传广[1] 徐莹[1] 胡建勋[1] 刘庭[1] 

机构地区：[1]国网武汉高压研究院,湖北省武汉市430074

出　　处：《电力设备》2007年第8期1-5,共5页Electrical Equipment

摘　　要：1000kV特高压交流输电工程已开工建设,为保证其投运后线路带电作业能安全进行,需进行1000kV交流输电线路带电作业组合间隙研究。文章结合晋东南—南阳—荆门1000kV特高压交流试验示范工程的实际,计算分析了线路带电作业时的过电压水平;通过试验得出了1000kV交流输电线路直线塔边相、中相、耐张串带电作业组合间隙的操作冲击放电特性。并在此基础上进行了带电作业危险率的计算分析,研究确定了1000kV交流输电线路带电作业最小组合间隙。1 000 kV AC transmission lines are the latest and highest voltage grade transmission lines in China. To ensure the safety of living working on 1 000 kV AC transmission lines, the live working complex gap should be researched. According to the practical conditions of Jindongnan-Nanyang-Jinmen 1 000 kV ACUHV pilot project, the over-voltage level while live working was calculated and analyzed, and then the switching impulse flashover characteristics of complex gaps on side phase, middle phase and tension string of 1 000 kV transmission lines were obtained by experiments. Based on these, the risk rate of live working was calculated and analyzed, and then live working complex gap of 1 000 kV AC transmission lines was determined.

关 键 词：电网 交流 1000kV 特高压 输电线路 带电作业 组合间隙 带电作业危险率 

分 类 号：TM726.1[电气工程—电力系统及自动化] TM755