Open AccessDevelopment and application of lightning flashover limited equipment for 220 kV AC transmission line
Author(s) -
Cao Wei,
Wan Shuai,
Gu Shanqiang,
Xu Heng,
Chen Jiahong,
Wang Jian,
Lv Jun
Publication year - 2019
Publication title -
the journal of engineering
Language(s) - English
Resource type - Journals
ISSN - 2051-3305
DOI - 10.1049/joe.2018.8357
Subject(s) - arc flash , lightning (connector) , transmission line , electrical engineering , line (geometry) , electric power transmission , transmission (telecommunications) , materials science , computer science , automotive engineering , voltage , engineering , physics , power (physics) , mathematics , geometry , quantum mechanics
In order to solve the operation problems of traditional lightning protection equipment (for example, line arrester and parallel gap) for 220 kV AC transmission line, a novel lightning protection equipment – lightning flashover limited equipment for 220 kV AC transmission line – has been developed successfully, which owns the advantages of line arrester and parallel gap. Technical parameters, and electrical and mechanical performances are researched through theoretical calculation and experimental verification, and an installation structure of new split type is designed. The results show that the lightning flashover limited equipment has good electrical and mechanical performance and meets insulation, tensile, and bending requirements. By now, more than 200 sets of lightning flashover limited equipment for 220 kV AC transmission line have been applied on lines in four provinces of China. About 2 years of operating experience show that all the sets of lightning flashover limited equipment work safely and reliably.