Title :
Dependence of overhead line tower geometric constructions to the lightning shielding failure
Author :
Li, Zhen ; He, Jinliang ; Peng, Xiangyang ; Li, Zhifeng
Author_Institution :
Dept. of Electr. Eng., Tsinghua Univ., Beijing, China
Abstract :
A numerical calculation method is proceeded to investigate the effect of overhead line tower geometric constructions to the lightning shielding failure. This numerical calculation is based on the Leader Development Model of lightening [1-8] and the charge distribution in the leader channel is set as literature [6]. In this paper, the height and the separation distance of the ground wire was changed to study the shielding effectiveness of different tower constructions. As the conclusion, an efficient layout scheme of ground wire and phase wire was proposed.
Keywords :
earthing; lightning protection; poles and towers; power overhead lines; power transmission protection; ground wire height distance; ground wire separation distance; leader channel charge distribution; leader development model; lightning shielding failure; numerical calculation method; overhead line tower geometric construction; phase wire; Conductors; Layout; Lightning; Numerical models; Poles and towers; Wires; LPM; shielding failure trip rate; tower geometric construction;
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.2011.6110157
