Modeling the treeing growth in solid electrical insulations

Author

Rouha, N. ; Bercual, A. ; Brosseau, C.

Author_Institution

Dept. d´´Electrotechnique, Bejaia Univ., Bejaia, Algeria

Volume

2

fYear

1996

fDate

20-23 Oct 1996

Firstpage

750

Abstract

This paper presents an attempt of modelling the treeing structures expanding in an insulating polymer. By assuming the treeing shapes to simple geometries and by considering the polymer/tree interface with or without charge, we establish a mathematical expression describing the dynamics of the propagation. This shows the treeing length dependency on many parameters such as the amplitude, the duration and the shape of the applied voltage, the frequency, the electrode gap, the density of the polymer, the permittivities and conductivities of both polymer and tree. We also discuss the time-lag to breakdown

Keywords

electric breakdown; electrical conductivity; modelling; organic insulating materials; permittivity; polymers; trees (electrical); electrode gap; insulating polymer; polymer conductivity; polymer density; polymer permittivity; polymer/tree interface; propagation dynamics; solid electrical insulation; time-lag to breakdown; treeing growth modeling; treeing length; treeing shapes; Dielectrics and electrical insulation; Electrodes; Frequency; Geometry; Plastic insulation; Polymers; Shape; Solid modeling; Trees - insulation; Voltage;

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.1996.564607

Filename

564607