架空输电线路倒“V”串研究与应用  

Study and application of the inversed V shape insulator strings for overhead transmission lines

作　　者：刁志文[1] 陈泓[2] 杨自东[2] 

机构地区：[1]宁夏电力公司吴忠供电局,宁夏吴忠751100 [2]宁夏电力公司,宁夏银川750001

出　　处：《宁夏电力》2011年第2期11-14,50,共5页Ningxia Electric Power

摘　　要：对2002年以来,宁夏电网110 kV～330 kV架空输电线路频繁发生污闪进行分析,得出绝缘配置偏低是造成污闪的根本原因,找出防污闪工作中存在的问题,提出相应的解决方法。重点介绍了在宁夏电网110 kV～330 kV架空输电线路重污区采用倒"V"型串调整绝缘子爬距的安装方法及注意事项。Analyzes the pollution flashover often happening in Ningxia Power Grid（110～330） kV overhead transmission line since 2002,concluded that the cause of the pollution flashover is lower insulation allocation,finds out the existing problems of preventing pollution flashover,brings forward the relevant solutions.Emphatically introduces the installation method and attentive items of using inversed V shape insulator strings to adjust insulator creepage length for preventing pollution flashover in the serious pollution area of Ningxia Power Grid（110～330） kV overhead transmission lines.

关 键 词：污闪 污区分布图 外绝缘 盐密 爬电比距有效系数 

分 类 号：TM751[电气工程—电力系统及自动化]