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Relation of influential parameters to back-flashover on the insulators in transmission tower
Author(s)
Bunjongjit, Sulee
Date Issued
April 1, 2015
Type
Article
Abstract
This paper focuses on behavior of over-voltage across the cross arm and back-flashover on the insulators with different front times of lightning waveshape. The simulations and analysis are performed using Alternative Transients Program/Electromagnetic Transients Program (ATP/EMTP) to investigate both over-voltage across the cross arm and insulators. The scheme under investigations is a part of Thailand electricity transmission and distribution system. 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 indicate that the front time of lightning waveshape plays an important role for the back-flashover voltage across insulator as well as the tower footing resistance and the lightning current.
Citation
International Review of Electrical Engineering, 10(2), 244-256, 2015