Influence of system geometry and bulk dielectric polarization upon PD transients

Author

Pedersen, A. ; Crichton, G.C. ; McAllister, I.W.

Author_Institution

Dept. of Phys., Tech. Univ., Lyngby, Denmark

Volume

2

fYear

1996

fDate

20-23 Oct 1996

Firstpage

545

Abstract

A physically valid theory of partial discharge transients has been developed through a field theoretical approach. The theory is based upon the concept of the charge induced upon the detecting electrode by the partial discharge. This induced charge consists of a component associated with the actual space charge in the void, and one related to changes in the polarization of the bulk dielectric. The latter is brought about by changes in the field external to the void due to the void space charge. The magnitude of the induced charge and its components are discussed with reference to a coaxial, heterogeneous dielectric-system

Keywords

dielectric polarisation; partial discharges; space charge; transient analysis; transients; voids (solid); Poissonian induced charge; bulk dielectric polarization; coaxial heterogeneous dielectric-system; detecting electrode; field theoretical approach; induced charge; partial discharge transients; space charge; system geometry; void; Dielectrics; Electrodes; Geometry; Laplace equations; Partial discharges; Permittivity; Physics; Polarization; Power engineering and energy; Space charge;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulation and Dielectric Phenomena, 1996., IEEE 1996 Annual Report of the Conference on

Conference_Location

Millbrae, CA

Print_ISBN

0-7803-3580-5

Type

conf

DOI

10.1109/CEIDP.1996.564530

Filename

564530