Numerical calculation of electric fields, losses and interfacial charge densities in water-treed dielectric composite structure
Artikel i vetenskaplig tidskrift, 2004

Results of the computer modeling and an analysis of electrical processes in a water-treed polyethylene (XLPE) are presented. The water-treed region is considered as a binary composite structure in frequency domain. Electric fields, energy losses and interfacial charge densities are calculated and are examined using a simplified layered model and 3D model of a real water-treed XLPE insulation. It is shown that the interfacial charges in the bulk of the composite structure build up mostly due to differences in conductive properties of the constituent phases, and the distributions of the electric fields and losses are determined also by the morphology of the water-treed region.

numerical analysis

XLPE insulation

frequency-domain analysis

electric fields

water

Författare

Yuriy Serdyuk

Institutionen för elkraftteknik, Högspänningsteknik

Alexander Podoltsev

Institute of Electrodynamics of the National Academy of Sciences of Ukraine

Stanislaw Gubanski

Institutionen för elkraftteknik, Högspänningsteknik

Journal of Electrostatics

0304-3886 (ISSN)

Vol. 61 171-187

Ämneskategorier

Elektroteknik och elektronik

DOI

10.1016/j.elstat.2004.02.005