Title :
Impact of Water Content on the Electrical Behavior of Epoxy Insulators
Author :
Mboungou, E. ; Mavon, C. ; Friedt, J. -M ; Bergeon, C. ; Fromm, M.
Author_Institution :
Univ. de Franche-Comte, Besancon
fDate :
4/1/2008 12:00:00 AM
Abstract :
Polymers are widely used in indoor insulation. We analyze three epoxy samples with varying matrix and filler properties to determine the influence of water on their insulating properties. We observed a strong dependency of the leakage current and the sample temperature, under electrical stress, on the amount of absorbed water. Tri- hydrated alumina filler reduced the leakage current and temperature rise under electrical stress.
Keywords :
alumina; epoxy insulators; insulator testing; leakage currents; stress effects; electrical stress; electrical test; epoxy insulators; filler properties; insulating properties; leakage current; tri-hydrated alumina filler; water content influence; Accelerated aging; Degradation; Dielectrics and electrical insulation; Humidity; Leakage current; Mechanical factors; Stress; Surface discharges; Temperature; Water;
Journal_Title :
Dielectrics and Electrical Insulation, IEEE Transactions on
DOI :
10.1109/TDEI.2008.4483447
