Flashover voltage of epoxy-resin surfaces in carbonized transformer oil

authored by

M. Krins, H. Borsi, Ernst Gockenbach

Abstract

This paper reports on experimental investigations dealing with the influence of carbon particles on the flashover voltage of the interface between epoxy resin rods and mineral based transformer oil in a homogeneous as well as in an inhomogeneous electrode configuration. The obtained results reveal that in an uniform field the flashover voltage under carbonized oil for long gap distances is slightly higher than under new oil. In case of a non-uniform electrode arrangement an increase of the carbon content is combined with a significant improvement of the breakdown and the flashover voltage.

Organisation(s)

High Voltage Engineering and Asset Management Section (Schering Institute)

Type

Paper

Pages

368-371

No. of pages

4

Publication date

1997

Publication status

Published

Peer reviewed

Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials, Condensed Matter Physics, Materials Chemistry