Effects of short-time voltage drops and polarity reversals on breakdown behaviour of cross-linked polyethylene

Author

Riechert, Uwe ; Kindersberger, Josef ; Speck, Joachim

Author_Institution

Inst. fur Hochspannungs- und Hochstromtech., Tech. Univ. Dresden, Germany

Volume

4

fYear

1999

fDate

6/21/1905 12:00:00 AM

Firstpage

216

Abstract

This paper deals with breakdown voltage characteristics of cross-linked polyethylene (XLPE) in homogeneous electric fields. The breakdown behaviour is measured with foils in a sphere-sphere arrangement under the influence of short-time voltage drops. The influence both of fall time and of rise time of DC recovery voltage is discussed in connection with the space charge effect. Moreover, the breakdown voltage was measured in fast polarity reversal experiments. The electrical strength was found to depend mainly on the rise time of DC recovery voltage. Secondly, with respect to service conditions, the influence of temperature on the DC breakdown behaviour was investigated

Keywords

XLPE insulation; XLPE; breakdown voltage; cross-linked polyethylene; fall time; fast polarity reversal experiments; foils; homogeneous electric fields; insulation breakdown voltage characteristics; rise time; short-time voltage drops; space charge effect; sphere-sphere arrangement;

fLanguage

English

Publisher

iet

Conference_Titel

High Voltage Engineering, 1999. Eleventh International Symposium on (Conf. Publ. No. 467)

Conference_Location

London

ISSN

0537-9989

Print_ISBN

0-85296-719-5

Type

conf

DOI

10.1049/cp:19990831

Filename

821259