Frequency spectrum of dielectric strength of PET

authored by

O. S. Gefle, S. M. Lebedev, Y. P. Pokholkov, E. Gockenbach, H. Borsi, C. D. Ritschel, Lars Hoppe

Abstract

It is a well-known fact that the breakdown voltage of a dielectric at the same thickness depends on a rate of increase of the applied voltage. At some rate of increase of voltage a minimum of either the voltage-time characteristic or the dielectric strength are usually observed. This effect is very important from the practice for the choice of the optimal frequency range of dielectrics being used in HV designs. In this work the testing results of the voltage-time characteristic study for PET film are represented. PET is usually used as HV insulation of various electrical engineering equipment. The role of the frequency dispersion of the complex permittivity in the appearance of minimum in the voltage-time characteristic or the dielectric strength of PET films was discussed.

Organisation(s)

High Voltage Engineering and Asset Management Section (Schering Institute)

External Organisation(s)

Tomsk Polytechnic University

Type

Conference contribution

Volume

1

Pages

64-66

No. of pages

3

Publication date

2004

Publication status

Published

Peer reviewed

Yes

ASJC Scopus subject areas

General Engineering