Title :
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
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;
Conference_Titel :
Electrical Insulation, 2002. Conference Record of the 2002 IEEE International Symposium on
Print_ISBN :
0-7803-7337-5
DOI :
10.1109/ELINSL.2002.995969
