IRC-analysis: destruction free dielectric diagnosis of mechanical and service aged polymeric insulation

Author

Hofmann, R. ; Kranz, H.-G. ; Steinbrink, D.

Author_Institution

Bergische Univ., Wuppertal, Germany

Volume

4

fYear

1999

fDate

6/21/1905 12:00:00 AM

Firstpage

253

Abstract

Studies have shown that there is a strong correlation between the mechanical and electrical ageing and the microdielectric behaviour of insulation. The isothermal relaxation current from a polymeric volume correlates with the intensity and the duration of the stress. Therefore the method of the isothermal relaxation current-analysis (IRC-analysis) offers a destruction free possibility to investigate the degradation processes of polymeric composites, which are the base materials in modern insulation. In this paper results of the mechanical and microdielectric analysis of polymeric specimens are discussed

Keywords

ageing; XLPE cable insulation; composite insulators; destruction free dielectric diagnosis; electrical ageing; isothermal relaxation current-analysis; mechanical aged polymeric insulation; mechanical ageing; microdielectric behaviour; polyamide composite insulation; polymeric composites; polymeric volume; service aged polymeric insulation; stress duration; stress intensity;

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:19990840

Filename

821268