Electric field computation on an insulating surface with discrete water droplets

Author

El-Kishky, H. ; Gorur, R.S.

Author_Institution

Dept. of Electr. Eng., Arizona State Univ., Tempe, AZ, USA

Volume

3

Issue

3

fYear

1996

fDate

6/1/1996 12:00:00 AM

Firstpage

450

Lastpage

456

Abstract

Knowledge of the electric field along the external surface is a fundamental requirement for reliable assessment of electric discharge produced surface changes, degradation and flashover of outdoor insulation. Presented in this paper is a method of electric field computation on an insulating surface in the presence of discrete water droplets. The computational method is based on the charge simulation technique. The electric field intensification produced by water droplets is calculated and correlated with electric discharge activity that occurs on outdoor insulators under contaminated conditions. The results are useful for analyzing the performance of outdoor insulating devices, especially non-ceramic insulators, under contaminated conditions

Keywords

electric fields; flashover; insulator contamination; insulator testing; moisture; surface discharges; charge simulation technique; contaminated conditions; degradation; discrete water droplets; electric discharge produced surface changes; electric field computation; external surface; flashover; insulating surface; nonceramic insulators; outdoor insulators; Ceramics; Dielectrics and electrical insulation; Electric fields; Electrodes; Geometry; Shape; Solid modeling; Stress; Surface discharges; Voltage;

fLanguage

English

Journal_Title

Dielectrics and Electrical Insulation, IEEE Transactions on

Publisher

ieee

ISSN

1070-9878

Type

jour

DOI

10.1109/94.506220

Filename

506220