Numerical model describing the effect(s) of a barrier and the space charge fields on the electrical strength of a point-plane air gap using the finite elements

In this paper, we have computed fields of the positive ions and electrons created at the head of avalanche in a positive point-barrier-plane air gap. The polarisation field effect of the dielectric is taken into account. The general problem will be formulated with finite elements and it is focussed...

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Published in2000 Annual Report Conference on Electrical Insulation and Dielectric Phenomena (Cat. No.00CH37132) Vol. 2; pp. 466 - 469 vol.2
Main Authors Mokhnache, L., Boubakeur, A., Boukhthache, S.
Format Conference Proceeding
LanguageEnglish
Published IEEE 2000
Subjects
Calculus
Clouds
Dielectrics
Electrodes
Electrons
Erbium
Numerical models
Polarization
Space charge
Stress
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Summary:In this paper, we have computed fields of the positive ions and electrons created at the head of avalanche in a positive point-barrier-plane air gap. The polarisation field effect of the dielectric is taken into account. The general problem will be formulated with finite elements and it is focussed on the polarisation field formulation. It was found that the effect of the two space charge fields is to reduce the breakdown voltage.
ISBN:9780780364134
0780364139
DOI:10.1109/CEIDP.2000.883999