Research on live working of tower with V-type insulator extending to tower body for ±800kV UHVDC transmission line

For the specific 4 towers with V-type insulator extending to tower body for Hami-Zhengzhou ± 800kV UHVDC transmission project, live working security analysis is carried out, the required minimum safe distance and the minimum combined gap distance under various working conditions are calculated, whic...

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Bibliographic Details
Published in2014 International Conference on Power System Technology pp. 2134 - 2140
Main Authors Ding Yu-jian, Sun Hui, Zhao Jiang-tao, Zhou Jun, Liao Wei-ming, Mao Yan
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.10.2014
Subjects
800kV UHVDC transmission line
Conductors
Discharges (electric)
Insulators
live working
operation in reduced voltage
Poles and towers
Power transmission lines
protective gap
Safety
safety distance
V-type insulator extending to tower body
Voltage control
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Summary:For the specific 4 towers with V-type insulator extending to tower body for Hami-Zhengzhou ± 800kV UHVDC transmission project, live working security analysis is carried out, the required minimum safe distance and the minimum combined gap distance under various working conditions are calculated, which determines the way to getting in and out of the equipotential of the tower with V-type insulator extending to tower body, in addition, the safety distance is also checked under the condition of different working locations, according to the checked results, appropriate measures are proposed to take when the air gap distance does not meet the risk rate requirement, which makes a great significance for the operation, maintenance and spreading of tower with V-type insulator extending to tower body.
DOI:10.1109/POWERCON.2014.6993595