Title :
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
fDate :
6/21/1905 12:00:00 AM
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;
Conference_Titel :
High Voltage Engineering, 1999. Eleventh International Symposium on (Conf. Publ. No. 467)
Conference_Location :
London
Print_ISBN :
0-85296-719-5
DOI :
10.1049/cp:19990840
