The influence of local environmental conditions on surface discharge behaviour

Author

Sam, Y.L. ; Lewin, P.L. ; Davies, A.E. ; Wilkinson, J.S. ; Sutton, S.J. ; Swingler, S.G.

Author_Institution

Dept. of Electron. & Comput. Sci., Southampton Univ., UK

fYear

2002

fDate

7-10 Apr 2002

Firstpage

439

Lastpage

443

Abstract

The measurement of surface charge is important in determining the electrical performance of high voltage insulation materials. This paper is concerned with surface charge measurements utilising Pockels effect. The method proposed allows on-line measurement of charge and can generate two-dimensional images that represent the charge behaviour on a material surface. The system has been used to investigate the influence of local environment on surface charge distribution.

Keywords

Pockels effect; charge measurement; gas insulated switchgear; insulating materials; insulation testing; surface discharges; Pockels effect; SF₆ pressure variation; charge behaviour; electrical performance; electro-negative gases; electronegative SF₆; gas insulated switchgear; high voltage insulation materials; local environment; local environmental conditions; material surface; on-line measurement; surface charge distribution; surface charge measurements; surface discharge behaviour; two-dimensional images; varying atmospheric pressure; Charge measurement; Current measurement; Dielectric losses; Electrodes; Needles; Optical films; Optical modulation; Optical polarization; Optical surface waves; Surface discharges;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulation, 2002. Conference Record of the 2002 IEEE International Symposium on

Print_ISBN

0-7803-7337-5

Type

conf

DOI

10.1109/ELINSL.2002.995969

Filename

995969