Research on characteristics of surface electric field on transmission lines under lightning stroke

Author

Li, Qian ; Yu, Zhanqing ; Zeng, Rong ; Zhang, Yong ; Li, Zhizhao ; Zhuang, Chijie ; Liao, Yongli

Author_Institution

Dept. of Electr. Eng., Tsinghua Univ., Beijing, China

fYear

2011

fDate

1-4 Nov. 2011

Firstpage

868

Lastpage

873

Abstract

Lightning is a major cause of power interruptions in power transmission lines. Nowadays the Leader Progression Model is an advanced method to evaluate the shielding failure probability of transmission lines. Calculating the surface electric field on phase conductors and ground wires precisely is important, because the surface electric field has great effect on the upward leader inception. In this paper, the influence of lightning current and some other factors on surface electric field were analyzed.

Keywords

failure analysis; lightning protection; power overhead lines; power transmission faults; probability; ground wire; leader progression model; lightning current; lightning stroke; phase conductor; power interruption; power transmission line; shielding failure probability; surface electric field; upward leader inception; Conductors; Electric fields; Lead; Lightning; Mathematical model; Power transmission lines; Wires; UHVAC; leader progression model; surface electric field; transmission lines;

fLanguage

English

Publisher

ieee

Conference_Titel

Lightning (APL), 2011 7th Asia-Pacific International Conference on

Conference_Location

Chengdu

Print_ISBN

978-1-4577-1467-2

Type

conf

DOI

10.1109/APL.2011.6110250

Filename

6110250