Title :
Dynamic model of discharge propagation on discontinuous pollution layers under AC voltages and experimental validation
Author :
Beroual, A. ; Dhahbi-Megriche, N.
Author_Institution :
Centre de Genie Electrique de Lyon, Ecole Centrale de Lyon, Ecully, France
Abstract :
This paper deals with the determination of the leakage current and the flashover voltage of non uniform polluted insulators submitted to ac voltages, using a predictive flashover dynamic model. The influence of the width and the conductivity of polluted layers is investigated. The simulated results are validated experimentally on a plane insulator model using electrolytic solutions of different conductivities. It is found that the simulated results are in a good agreement with the experimental ones.
Keywords :
flashover; insulator contamination; leakage currents; AC voltage; discharge propagation; discontinuous pollution layer; electrolytic solution; flashover voltage; leakage current; outdoor insulator; plane model; predictive dynamic model; surface conductivity; Conductivity; Electromagnetic propagation; Flashover; Insulation; Pollution; Predictive models; Surface cleaning; Surface contamination; Surface discharges; Voltage;
Conference_Titel :
Electrical Insulation and Dielectric Phenomena, 2002 Annual Report Conference on
Print_ISBN :
0-7803-7502-5
DOI :
10.1109/CEIDP.2002.1048802
