1000kV同塔双回输电线路带电作业技术试验研究  

Experimental Research of Live Working on 1000 kV Double Circuit AC Transmission Line on the Same Tower

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

机构地区：[1]国网电力科学研究院,武汉430074

出　　处：《高电压技术》2010年第11期2668-2673,共6页High Voltage Engineering

基　　金：国家电网公司科技项目(SGKJ[2007]89)~~

摘　　要：为配合1000 kV同塔双回输电线路的建设,提高输电线路带电作业的安全性和可行性,结合华东淮南-上海1000 kV输变电工程塔型、导线布置、人在塔上的作业位置等实际情况,对其带电作业方式进行了研究。在1:1的模拟杆塔上进行了带电作业典型位置的安全距离和组合间隙试验;同时,使用有限元方法对线路杆塔空间电场分布进行了仿真计算,并在真型塔上对带电作业人员处于地电位和等电位时人体的体表场强进行了测量。根据试验及计算结果,得到了在各种典型作业位置进行带电作业时的最小安全距离和组合间隙,总结了电场的分布特点并制定了相应防护措施。研究结果表明,1000 kV同塔双回输电线路的带电作业是安全的、可行的。In order to coordinate with the construction of the 1000 kV AC double circuit transmission line on the same tower,and to improve the safety and feasibility in live working on transmission line,according to the practice of the tower model,conductors arrangements,live working position in the 1000 kV AC Transmission Demonstration Project of East China,live line work for the line is researched.The safety distance and complex gap of typical locations in live working position were tested at 1：1 ratio scale simulated tower.Meanwhile,the electric field distribution in the space near the line and towers was simulated by the methods of FEM,and the electric field intensity on human-body surface at earth working and potential working two operations were measured through simulated tower.Based on the results of the test and calculation,the minimum safety distance and complex gap of different typical working positions in live working were determined;the distribution of the electric field was summarized and the appropriate protective measures were established.The research result proved the safety and feasibility of live working on 1000 kV double circuit AC transmission line on the same tower.

关 键 词：1000kV 同塔双回 带电作业 安全距离 组合间隙 安全防护 

分 类 号：TM723[电气工程—电力系统及自动化]