The influence of dielectric surface charge distribution upon the partial discharge behavior in short air gaps

Author

Nikonov, Vladimir ; Bartnikas, Ray ; Wertheimer, Michael R.

Author_Institution

Dept. of Eng. Phys., Ecole Polytech. de Montreal, Que., Canada

Volume

29

Issue

6

fYear

2001

fDate

12/1/2001 12:00:00 AM

Firstpage

866

Lastpage

874

Abstract

A two-dimensional breakdown model based upon the continuity equations for electrons and ions and the Poisson equation is employed to examine the influence of surface charges upon the partial discharge behavior of a short metallic-dielectric plane-parallel electrode gap of 0.05 cm in an air-like mixture at atmospheric pressure. The form of charge distribution at the dielectric electrode surface is found to significantly affect a number of important discharge parameters, such as the uniformity of the electric field, the charge density and its radial distribution within the gap, as well as the discharge propagation time

Keywords

Poisson equation; air gaps; electrodes; electron density; partial discharges; plasma properties; plasma simulation; surface charging; surface discharges; 0.05 cm; 1 atm; Poisson equation; air-like mixture; atmospheric pressure; charge density; charge distribution; continuity equations; dielectric electrode surface; dielectric surface charge distribution; discharge parameters; discharge propagation time; electric field; electrons; ions; partial discharge behavior; radial distribution; short air gaps; short metallic-dielectric plane-parallel electrode gap; surface charges; two-dimensional breakdown model; uniformity; Dielectrics and electrical insulation; Electrodes; Fault location; Partial discharges; Plastic insulation; Poisson equations; Polymers; Sparks; Surface discharges; Surface treatment;

fLanguage

English

Journal_Title

Plasma Science, IEEE Transactions on

Publisher

ieee

ISSN

0093-3813

Type

jour

DOI

10.1109/27.974972

Filename

974972