河北南网500kV输电线路差异化防雷的可行性和必要性分析  

Feasibility and Necessity Analysis on Differentiated Lightning Protection of 500 kV Transmission Lines in the South of Hebei Power Grid

作　　者：赵莹[1] 李永刚[1] 雷胜华[1] 郑雄伟 

机构地区：[1]华北电力大学电力工程系,河北保定071003 [2]国网河北省电力科学研究院,石家庄050000

出　　处：《电瓷避雷器》2016年第1期91-94,100,共5页Insulators and Surge Arresters

摘　　要：雷击作为最具破坏了的自然灾害之一已经是公认的对输电线路造成损失最大的自然灾害。虽然已经实施了很多防雷措施也改进了防雷技术,但是输电线路雷击跳闸率依然没有很好的改观,对河北南网500 kV输电线路近几年的雷电活动情况、地闪密度、雷电流累计幅值以及雷击事故的分析,得出差异化防雷思想有助于降低河北南网500 kV输电线路雷击跳闸率。As the most destructive natural disaster, lightning has been recognized as the biggest natural disaster for transmission lines. Although many lightning protection measures have been implemented to improve the lightning protection technology, lightning trip rate is still high in the transmission lines. In recent years, the lightning activity, lightning current density, lightning current amplitude and lightning accident of 500 kV transmission lines in the south of Hebei are analyzed, the differentiated lightning protection idea is obtained, which is beneficial to reduce the lightning trip-out rate of the area.

关 键 词：雷击 输电线路 雷击跳闸率 差异化 

分 类 号：TM863[电气工程—高电压与绝缘技术]