Electric field modelling around an ice-covered insulator using boundary element method

Author

Farzaneh, Masoud ; Volat, C. ; Gakwaya, A.

Author_Institution

NSERC, Hydro-Quebec, Montreal, Que., Canada

fYear

2000

fDate

2000

Firstpage

349

Lastpage

355

Abstract

The presence of a thick ice layer on a post insulator can change considerably the distribution of the electric field along this equipment, and that especially when a water film flows on the accumulated ice surface. The main objective of this paper is the modelling of electric field distribution along a post insulator covered with atmospheric ice with air gaps, using the boundary element method (BEM). Moreover, the influence of the presence of a highly conductive water film at the ice surface on the field distribution is also studied. The results contribute to the prediction of flashover on industrial ice-covered insulators

Keywords

boundary-elements methods; electric fields; flashover; ice; insulator contamination; air gap; boundary element method; electric field distribution; flashover; ice covered insulator; numerical model; post insulator; water film; Air gaps; Atmospheric modeling; Boundary conditions; Boundary element methods; Dielectrics and electrical insulation; Electrical equipment industry; Flashover; Ice surface; Integral equations; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulation, 2000. Conference Record of the 2000 IEEE International Symposium on

Conference_Location

Anaheim, CA

ISSN

1089-084X

Print_ISBN

0-7803-5931-3

Type

conf

DOI

10.1109/ELINSL.2000.845524

Filename

845524