Title :
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
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;
Conference_Titel :
Electrical Insulation, 2008. ISEI 2008. Conference Record of the 2008 IEEE International Symposium on
Conference_Location :
Vancouver, BC
Print_ISBN :
978-1-4244-2091-9
Electronic_ISBN :
1089-084X
DOI :
10.1109/ELINSL.2008.4570414
