Lightning flashover rate of an overhead transmission line protected by surge arresters

被引:0
|
作者
Martinez, J. A. [1 ]
Castro-Aranda, F. [2 ]
机构
[1] Univ Politecn Cataluna, Dept Elect Engn, Barcelona, Spain
[2] Univ Valle, Escuela Ingn Elect Electron, Grp Invest Alta Tens, Cali, Colombia
关键词
surge arresters; overvoltages; modeling; Monte Carlo method; power system lightning effects;
D O I
暂无
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Surge arresters can improve the lightning performance of transmission lines. The flashover rate of a shielded transmission line protected by surge arresters can be negligible when arresters are installed at all phases and all towers. But even if arresters are not installed at all phases, some improvement can be achieved. However, arrester failure can be caused when the energy discharged exceeds the maximum absorption capacity. Therefore, arresters must be selected taking also into account energy discharge stresses. This paper is aimed at analyzing the lightning performance improvement of a shielded transmission line that can be achieved by installing surge arresters and the energy capability to be selected for arresters as a function of the number of phases at which they are installed.
引用
收藏
页码:1240 / 1245
页数:6
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