Title :
PPS electrical properties for power transformers
Author :
Fatmi, M.-B. ; Bui, A. ; Boisdon, C. ; Vuarchex, P.
Author_Institution :
Lab. de Genie Electr., Univ. Paul Sabatier, Toulouse, France
fDate :
8/1/1998 12:00:00 AM
Abstract :
In order to find a material that can be used as wrapped insulating film in the power transformer industry, we have tested polyphenylene sulfone which is film characterized by a high thermal resistance, a high chemical resistance and an outstanding mechanical strength. The thermal degradation study is of major importance in this application, so thermal aging test in the presence of silicone oil at 160°C was carried out in reactor. Dielectric breakdown, partial discharges, conductivity, permittivity and dielectric loss measurement were studied in the investigation
Keywords :
ageing; dielectric losses; electric breakdown; electrical conductivity; organic insulating materials; partial discharges; permittivity; polymer films; power transformer insulation; 160 C; PPS; chemical resistance; conductivity; dielectric breakdown; dielectric loss; electrical properties; mechanical strength; partial discharge; permittivity; polyphenylene sulfone; power transformer; silicone oil; thermal aging; thermal resistance; wrapped insulating film; Aging; Chemical industry; Dielectric loss measurement; Electric resistance; Electrical equipment industry; Materials testing; Power transformer insulation; Power transformers; Thermal degradation; Thermal resistance;
Journal_Title :
Dielectrics and Electrical Insulation, IEEE Transactions on
