摘要
架空输电线路作为电网的重要组成部分,其分布广且线路长,大部分输电线路处于野外环境中.所以在雷雨季节受到雷击的可能性非常大。线路受到雷击,不仅对线路造成严重的损坏,同时威胁变电站的安全运行,以及整个电力系统供电的可靠性。现就我局新建220 k V景黎线一起雷击跳闸故障,结合输电线路的实际运行与防雷现状进行原因分析,在此基础上探索有效的防雷保护措施,以提高我局架空输电线路的防雷能力。
As an important part of China Southern Power Grid, the over-head transmission lines, most of which lie in wild environ-ment, are widely distributed so that it is likely to be struck by lightning tripping in the thunderstorm reason. If so, the over-head transmission lines are not only badly damaged, but also threaten the safe operation of the transformer substations, even the power supply reliability of the power system. Combining with the actual operation of the over-head transmission lines and the lightning proof situation, the thesis is aimed at analyzing the reasons of a lightning tripping fault about 220 kV Jungli over-head transmission lines and exploring effective measures to improve the lightning proof.
出处
《云南电力技术》
2015年第4期48-51,共4页
Yunnan Electric Power
关键词
架空输电线路
雷击跳闸
思考与探索
over-head transmission lines
lightning tripping
reflection and exploration
