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Impact of lightning impulse voltage waveshape front time between 1.2/50 μs and 4/50 μs on back-flashover voltage across insulator of 230 KV transmission tower
Date Issued
February 4, 2014
Type
Article
Abstract
This paper is a study of the behavior of back-ashover on the insulators with various lightning voltage waveshapes. The simulated lightning strikes on high voltage 230 kV transmission towers using Alternative Transients Program/Electromagnetic Transients Program (ATP/EMTP) to consider back-ashover voltage across insulators. The standard of lightning voltage waveshape (1.2/50 μs) will be compared with the other lightning voltage waveshape front time (4/50 μs) in this paper. The results are shown that the lightning voltage waveshape plays an important role for the back-ashover voltage across insulators as well as the tower footing resistance and the lightning stroke current. © 2014 ICIC International.
Citation
Icic Express Letters, 8(3), 765-770, 2014