Title :
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
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;
Conference_Titel :
Lightning (APL), 2011 7th Asia-Pacific International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4577-1467-2
DOI :
10.1109/APL.2011.6110250
