摘要
运行情况统计表明，输电线路故障大多与季节有关，其中雷击故障占有很大比例。基于对保定供电公司110～500kV输电线路历年雷击闪络故障的分析，详细分析了雷云放电机理，雷击闪络与接地装置的关系，合成绝缘子不利因素以及雷击的选择性。并有针对性地提出了防止雷击闪络事故发生的技术措施。
From the running state, the transmission line failures are the connected With seasons, thereinto the lightning failures are in great proportion. Through analysis on the lightning strike accidents of 110-500 kV transmission lines at Baoding Power Supply Company, the article sets forth the lightning strike mechanism, the relationship of lightning flashover and the ground device, the unfavorable factors of insulator chain and lightning selections, then proposes the technology measures on preventing lightning flashover accidents.
出处
《河北电力技术》
2006年第6期30-33,共4页
Hebei Electric Power
关键词
输电线路
雷击闪络
防雷措施
transmission line
lightning stroke researeh
lightning protection measures
