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

Volume

6

Issue

6

fYear

1999

fDate

12/1/1999 12:00:00 AM

Firstpage

792

Lastpage

797

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;

fLanguage

English

Journal_Title

Dielectrics and Electrical Insulation, IEEE Transactions on

Publisher

ieee

ISSN

1070-9878

Type

jour

DOI

10.1109/94.822016

Filename

822016