Corona Effect Produced by Lightning Strokes on Distribution Feeders

Anane, Zahira; Morales Garcia ,, John Armando; Cabral, Roberto José; Bayadi, Abdelhafid

International journal of electronic and electrical engineering systems
Volume 1, Numéro 3, Pages 16-22
2018-09-30

Corona Effect Produced By Lightning Strokes On Distribution Feeders

Authors : Anane Zahira . Morales Garcia , John Armando . Cabral Roberto José . Bayadi Abdelhafid .

Abstract

Distribution feeder usually is built without shielding conductors. Hence, these elements can be greater affected by overvoltages produced by lightning strokes. These phenomena generate overvoltages that depending of its characteristic could result in the Corona effect, which retarding and decreasing the portion of the wave front above Corona inception voltage while the voltages are greater than the Corona threshold. Corona effect has usually been omitted in studies and analysis on distribution feeders. In this paper, an analysis of the influence of Corona effect on real distribution feeder is presented.Various conditions simulated with ATPDraw to study the influence of effect Corona on overvoltages due to lightning on shielding-feeders and unshielding-feeders. Simulation results demonstrate that the influence of Corona on overvoltages due to lightning strike is significant.