Modelling of partial discharge development in electrical tree channels

Author

Noskov, M.D. ; Malinovski, A.S. ; Sack, M. ; Schwab, A.J.

Author_Institution

High-Voltage Res. Inst., Polytech. Univ. of Tomsk, Russia

Volume

10

Issue

3

fYear

2003

fDate

6/1/2003 12:00:00 AM

Firstpage

425

Lastpage

434

Abstract

A model of partial discharge development in electrical tree structures is presented. The model considers channel conductivity, charge transport, and electric field redistribution during propagation of the discharge along the channels. It has been used for numerical investigation of temporal-spatial and electric characteristics of the partial discharges in capillaries and electrical trees exposed to AC voltage in a needle-plane geometry. The simulation results have been compared with experimental data given in the literature.

Keywords

electric charge; electric fields; electrical conductivity; organic insulating materials; partial discharges; polymers; trees (electrical); AC voltage; capillaries; channel conductivity; charge transport; discharge propagation; electric field redistribution; electrical tree channels; electrical trees; needle-plane geometry; partial discharge modelling; partial discharges; polymeric insulation; temporal-spatial characteristics; Conductivity; Dielectrics and electrical insulation; Electric variables; Electrons; Mathematical model; Partial discharges; Poisson equations; Tree data structures; Trees - insulation; Voltage;

fLanguage

English

Journal_Title

Dielectrics and Electrical Insulation, IEEE Transactions on

Publisher

ieee

ISSN

1070-9878

Type

jour

DOI

10.1109/TDEI.2003.1207468

Filename

1207468