摘要
近年来,雷电活动引起的输电线路跳闸事故频繁发生,因此针对输电线路防雷技术开展相应研究工作。在统计江苏雷电活动的基础上,分别从杆塔塔型、高度、回数及档距等多个方面分析了跳闸原因和雷击特性。完成2012至2016年江苏电网输电线路雷击跳闸统计,并结合电网生产实际,从输电线路差异化评估、运维、新技术等方面提出合理化防雷措施和建议。
In recent years,the transmission line tripping accidents caused by lightning activity occur frequently.The corresponding research work is carried out aiming at the transmission line lightning protection technology.Based on the analysis of the lightning activity in Jiangsu,the tripping reasons and lightning characteristics are analyzed in many aspects including the style,height,circuit number and span of tower.The statistics of tripping times of Jiangsu power gird transmission lines from2012to2016are completed.Then,in combination with the actual production of power grid,the rationalization of lightning protection measures and suggestions are proposed from the aspects of transmission line differential evaluation,operation and maintenance and new technology.
作者
徐伟
路永玲
唐梦颖
钟丹
胡成博
XU Wei;LU Yonglin;TANG Mengying;ZHONG Dan;HU Chengbo(State Grid Jiangsu Electric Power Company Research Institute, Nanjing 211103, China)
出处
《电力工程技术》
2017年第6期106-110,共5页
Electric Power Engineering Technology
关键词
输电线路
雷电活动
线路跳闸
落雷密度
防雷策略
transmission line
lightning activity
line tripping
flash density
lighting protection strategy
