Title :
Discharges in all-PP film model capacitors
Author :
Nemamcha, M. ; Gosse, J.P. ; Gosse, B.
Author_Institution :
Lab. d´´Electrostatique et de Materiaux Dielectriques, Univ. Joseph Fourier, Grenoble, France
fDate :
6/1/1993 12:00:00 AM
Abstract :
Discharges in model capacitors made of polypropylene impregnated with an organic liquid are studied with a digital analyzer. The effect of the nature of the liquid (aliphatic or aromatic hydrocarbon) and the influence of parameters such as voltage, pressure and temperature on the main characteristics of the discharges are investigated. Discharges were monitored during aging tests of the models. It is concluded that aging of the models tested at high electric fields (~135 V/μm) is not due to discharges but to the chemical degradation of polypropylene due electrical and thermal stresses
Keywords :
ageing; capacitors; discharges (electric); electron device testing; life testing; polymer films; thermal stresses; PP film model capacitor discharge; ageing test; aliphatic hydrocarbon; aromatic hydrocarbon; chemical degradation; computer aided equipment; digital analyzer; electrical stress; high electric fields; organic liquid impregnated polypropylene film; thermal stresses; Aging; Capacitors; Chemicals; Hydrocarbons; Monitoring; Temperature; Testing; Thermal degradation; Thermal stresses; Voltage;
Journal_Title :
Electrical Insulation, IEEE Transactions on
