110 kV复合绝缘横担结构设计及工程应用研究  

Structural Design and Application of 110 kV Composite Insulating Crossarm

作　　者：沈帆 李健 何昌林[1,2,3,4] 梅端 朱晓东[1,2,3,4] 吴峰 柯锐[1,2,3,4] 吴雄 SHEN Fan;LI Jian;HE Changlin;MEI Duan;ZHU Xiaodong;WU Feng;KE Rui;WU Xiong(NARI Group Corporation Ltd.,Nanjing 211106,China;Wuhan NARI Limited Liability Company,State Grid Electric Power Research Institute,Wuhan 430074,China;Hubei Key Laboratory of Power Grid Lightning Risk Prevention,Wuhan 430074,China;National Energy Key Laboratory of Lightning Disaster Detection,Early Warning and Safety Protection,Wuhan 430074,China)

机构地区：[1]南瑞集团(国网电力科学研究院)有限公司,江苏南京211106 [2]国网电力科学研究院武汉南瑞有限责任公司,湖北武汉430074 [3]电网雷击风险预防湖北省重点实验室,湖北武汉430074 [4]国家能源雷电灾害监测预警与安全防护重点实验室,湖北武汉430074

出　　处：《电工技术》2024年第7期81-86,共6页Electric Engineering

基　　金：湖北省中科院科技合作专项项目(编号20220104)。

摘　　要：为在输电线路中推广复合绝缘横担,以110 kV输电线路改造工程为背景,提出了一种线路用复合绝缘横担设计方法。从复合绝缘横担的大风、覆冰、安装及断线四种工况荷载计算着手,对复合绝缘横担开展结构设计。采用有限元软件建立两拉-两压结构形式的力学分析模型,在四种工况下对横担进行力学计算,通过力学真型实验验证了复合绝缘横担结构的稳定性和安全性。该方法设计的复合绝缘横担满足该线路安全运行要求,并成功挂网多条110 kV输电线路;针对不同线路塔型设计工作量大、生产周期长的问题,开展典型化设计工作是未来发展的趋势。In order to promote the application of composite insulating crossarm in transmission lines,a design method of composite insulating crossarm for 110 kV transmission lines is proposed in this paper.The structural design is carried out based on the load calculation of strong wind,icing,installation and line breaking.The mechanical model of two-pull and two-pressure is established by finite element software,and mechanical calculation of the crossarm is carried out under four loading conditions of strong wind,icing,installation and line breaking.Stability and safety of the composite insulating crossarm are verified by actual tests.The composite insulating crossarm designed by this method meets safety requirements and has been successfully applied to many 110 kV transmission lines.In view of the problems of large workload and long production cycle in the design of different line towers,it is the trend of future development to carry out typical design work.

关 键 词：复合绝缘横担 有限元 真型实验 大风 覆冰 安装 断线 

分 类 号：TM726[电气工程—电力系统及自动化]