Analysing on characteristics of lightning shielding failure of UHVAC double circuit transmission line based on leader progression method

Author

Wang, Zhiyong ; Wang, Shaoan ; Yu, Zhanqing ; Geng, Yinan ; Zeng, Rong ; He, Jinliang ; Li, Zhizhao

Author_Institution

Guangzhou Power Supply Bur., China Southern Power Grid Co., Ltd., Guangzhou, China

fYear

2010

fDate

12-16 April 2010

Firstpage

1582

Lastpage

1585

Abstract

Shielding failure of lightning is the key problem for safe operation of UHV transmission lines. Taking the feature of 1000KV AC double circuit transmission lines into account, the leader progression method with proper criterion was employed. The lightning shielding failure rate of top phase, middle phase and bottom phase of two different transmission line tower types were compute, in three different geography conditions. The research work is helpful for improving the lightning performance of UHV transmission lines.

Keywords

electromagnetic shielding; failure analysis; lightning protection; power transmission lines; power transmission reliability; UHVAC double circuit transmission line; leader progression method; lightning shielding failure; Conductors; Corona; Distributed parameter circuits; Failure analysis; Lightning; Poles and towers; Power system simulation; Power transmission lines; Transmission line theory; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetic Compatibility (APEMC), 2010 Asia-Pacific Symposium on

Conference_Location

Beijing

Print_ISBN

978-1-4244-5621-5

Type

conf

DOI

10.1109/APEMC.2010.5475688

Filename

5475688