摘要
对２２０ｋＶ双回同杆并架输电线路采用氧化锌避雷器以提高耐雷水平进行了计算分析。具体地比较了雷直击杆塔时安装不同支数避雷器的防雷效果，分析了接地电阻、线路档距等因素对耐雷水平的影响，同时计算了线路避雷器吸收的雷电放电能量。文章指出，采用线路避雷器，可以显著提高输电线路的耐雷水平；杆塔接地电阻对线路的耐雷水平影响很大，线路的耐雷水平基本上随接地电阻的增加而减小。
The study on adopting ZnO arrestor to increase lightning withstanding level of 220kV double circuit transmission line on the same tower was presented in this paper. The impact of some factors, such as number of arresters, ground resistance of tower and span of line, on lightning withstand level were analysed. The lightning discharge energy absorbed by ZnO arrester is also considered.
出处
《电网技术》
EI
CSCD
北大核心
1998年第9期13-16,共4页
Power System Technology
关键词
氧化锌
避雷器
双回同杆并架
输电线路
防雷
ZnO arrester Double circuit transmission line on the same tower Lightning withstand level Discharge energy
