Title :
Influence of aging on electrical properties of polyethylene naphthalate-2,6 dicarboxylate films
Author :
Guastavino, J. ; Krause, E. ; Mayoux, C.
Author_Institution :
Lab. de Genie Electr., Univ. Paul Sabatier, Toulouse, France
fDate :
12/1/1999 12:00:00 AM
Abstract :
Poly(ethylene naphthalate 2,6 dicarboxylate), thanks to its heat resistance, may be used as insulating material in motors and laminated chip capacitors. In these specific applications the occurrence of partial or corona discharges leads to insulation aging and possible breakdown. An experimental investigation has been carried out to determine the changes in dielectric properties as function of the aging conditions, e.g. the temperature of irradiation. Dielectric loss values have been determined in the 102 to 106 Hz frequency range from 150 to 200°C. Three relaxation peaks were found α,β*,β, in the order of decreasing temperature
Keywords :
ageing; corona; dielectric losses; dielectric relaxation; electric breakdown; organic insulating materials; partial discharges; polymer films; 150 to 200 C; 1E2 to 1E6 Hz; PEN film; aging; corona discharge; dielectric breakdown; dielectric loss; dielectric relaxation; electrical properties; heat resistance; insulating material; irradiation temperature; partial discharge; polyethylene naphthalate-2,6 dicarboxylate; Aging; Capacitors; Corona; Dielectric losses; Dielectric materials; Dielectrics and electrical insulation; Electric resistance; Polyethylene; Resistance heating; Temperature;
Journal_Title :
Dielectrics and Electrical Insulation, IEEE Transactions on
