Title :
Lightning shielding of transmission line and lightning stroke simulation model
Author :
Zhan, Huamao ; Lin, Fuchang ; Wang, Xiaoyu
Author_Institution :
Dept. of Electr. Power Eng., Huazhong Univ. of Sci. & Technol., Wuhan, China
Abstract :
In view of the insufficiencies of present lightning shielding theory (electrogeometric model and leader propagation model), the physical process of lightning stroke and the scatter of shielding failure on transmission line were studied. Some new knowledge of lightning shielding of transmission line and the simulation theory is proposed. A lightning stroke simulation model of transmission line, which is based on the probability of discharge, is proposed. The model was applied to calculate the rate of shielding failure of 500 kV ZM1-39 transmission line. Calculated results using the proposed model show good agreement with field experiences
Keywords :
cable shielding; failure analysis; lightning; power overhead lines; 500 kV; EHV; UHV; lightning shielding; lightning stroke; power transmission line; shielding failure; simulation model; simulation theory; Air gaps; Clouds; Environmentally friendly manufacturing techniques; Laboratories; Lightning; Optical propagation; Power transmission lines; Shape; Transmission line theory; Transmission lines;
Conference_Titel :
Electrical Insulation and Dielectric Phenomena, 2001 Annual Report. Conference on
Conference_Location :
Kitchener, Ont.
Print_ISBN :
0-7803-7053-8
DOI :
10.1109/CEIDP.2001.963630
