Dielectric response of laboratory aged PE cables

Author

Bernier, Simon ; Parpal, Jean-Luc ; David, Èric ; Jean, Daniel ; Lalancette, Daniel

Author_Institution

Ecole de Technol. Super., Montreal, QC

fYear

2008

fDate

9-12 June 2008

Firstpage

645

Lastpage

649

Abstract

A time domain spectroscopy (TDS) measuring device has been developed at the Institut de recherche d´Hydro-Quebec (IREQ) to characterize the dielectric losses of HV polymeric insulation and a diagnostic is also proposed to assess the water-tree aging of polyethylene. The results obtained on new and aged miniature polyethylene (PE) cable samples show that: (i) the depolarization losses are strongly dependant on the polarization time and on temperature and (ii) the polarization and depolarization losses show a linear dependence with water-tree polyethylene degradation.

Keywords

ageing; dielectric losses; polarisation; polyethylene insulation; power cable insulation; trees (electrical); HV polymeric insulation; Institut de recherche d´Hydro-Quebec; depolarization losses; dielectric losses; dielectric response; laboratory aged PE cables; polarization losses; polyethylene cable; time domain spectroscopy; water-tree aging; Aging; Cables; Dielectric loss measurement; Dielectric losses; Dielectric measurements; Electrochemical impedance spectroscopy; Laboratories; Loss measurement; Polarization; Polyethylene;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulation, 2008. ISEI 2008. Conference Record of the 2008 IEEE International Symposium on

Conference_Location

Vancouver, BC

ISSN

1089-084X

Print_ISBN

978-1-4244-2091-9

Electronic_ISBN

1089-084X

Type

conf

DOI

10.1109/ELINSL.2008.4570414

Filename

4570414