摘要
架空地线复合绝缘子连接着地线和杆塔,由复合绝缘子和金具两部分组成。受到风振的影响,地线绝缘子发生大量故障如金具磨损、绝缘子伞裙撕裂等。分析了绝缘子伞裙撕裂问题、地线金具磨损故障分布,指出故障集中的部位。提出了有针对性的改进措施,包括绝缘子伞裙优化、加大金具连接区域接触面积、改变连接方式等,并对优化后的地线绝缘子进行了模拟实验、耐磨性试验和现场试用,改进后的防风优化满足设计要求,复合绝缘子伞裙未见撕裂行为,优化结构的金具磨损损失率减少1/3,现场应用效果良好。
Ground-wires composite insulator connects ground wire and tower, which is consists of insulator and metal fittings. It is subject to large amount of fault such as the wear of hardware and com- posite insulator shed tear by wind-induced vibration. The problem of composite insulator shed tear fault as well as fault distribution of ground wire metal fittings wear are analyzed, and the location where the fault is concentrated and pointed out. The targeted improvement measures are proposed, such as optimizing insulator shed, increasing the area of contact area and changing connection mode. Then, it is carried out that simulated experiment, field test and wear resistance test of hardware in ground wire insulator optimized. Windproof optimization improved meets the design requirements ; composite insulator umbrella group tear is not happened. The wear loss rate of ground wire hardware decreases 1/3 by structural optimization. The effects on the field are well, and it has a good foreground in the application.
作者
高旭
曾文君
谢恒
刘劲松
张陵
程鹏
GAO Xu;ZENG Wenjun;XIE Heng;LIU Jinsong;ZHANG Ling;CHENG Peng(NARI Group Corporation（State Grid Electric Power Research Institute）, Nanjing 211106, China;Wuhan NARI Limited Liability Company, State Grid Electric Power Research Institute, Wuhan 430074, China;China Electric Power Research Institute, Wuhan 430074, China;State Grid Xinjiang Electric Power Company, Urumqi 830011, China)
出处
《电瓷避雷器》
CAS
北大核心
2018年第3期190-194,201,共6页
Insulators and Surge Arresters
基金
国网新疆电力公司科技项目(编号:5230DK160025)
关键词
地线绝缘子
金具
架空线路
防风优化
磨损
失效机理
风害区域
ground-wires insulator
metal fittings
overhead lines
wind prevention optimization
wear test
failure mechanism analysis
wind damage area
作者简介
高旭（1988-），男，工程师，从事输电线路运维技术工作。
