Analysis of the temporal electric fields in lossy dielectric media

Author

McAllister, I.W. ; Crichton, G.C.

Author_Institution

Phys. Lab. II, Tech. Univ. of Denmark, Lyngby, Denmark

Volume

26

Issue

3

fYear

1991

fDate

6/1/1991 12:00:00 AM

Firstpage

513

Lastpage

528

Abstract

The time-dependent electric fields associated with lossy dielectric media are examined. The analysis illustrates that, with respect to the basic time constant, these lossy media can take a considerable time to attain a steady-state condition. Time-dependent field enhancement factors are considered, and inherent surface-charge densities quantified. The calculation of electrostatic forces on a free, lossy dielectric particle is illustrated. An extension to the basic analysis demonstrates that, on reversal of polarity, the resultant tangential field at the interface could play a decisive role in the insulation integrity of a system

Keywords

dielectric losses; electric fields; electrostatics; insulation; electrostatic forces; insulation integrity; lossy dielectric media; steady-state condition; surface-charge densities; tangential field; temporal electric fields; time-dependent electric fields; Conductivity; Dielectric losses; Dielectrics and electrical insulation; Electrostatics; Equations; Laboratories; Permittivity; Physics; Space charge; Steady-state;

fLanguage

English

Journal_Title

Electrical Insulation, IEEE Transactions on

Publisher

ieee

ISSN

0018-9367

Type

jour

DOI

10.1109/14.85125

Filename

85125