Title :
Determination of aging-model constants under high frequency and high electric fields
Author :
Khachen, W. ; Laghari, J.R.
Author_Institution :
Dept. of Electr. & Comput. Eng., State Univ. of New York, Buffalo, NY, USA
fDate :
12/1/1994 12:00:00 AM
Abstract :
Polypropylene film is tested for life under HV, frequencies up to 30 kHz, and aging and breakdown studies are conducted. The life data obtained is applied to three different aging models relating electric stress to time to failure: the inverse power, the exponential and the thermodynamic model. The dependency of the constants of these models on the frequency of the applied voltage is determined. The results show that the aging model constants are dependent on applied voltage and frequency
Keywords :
ageing; electric breakdown; electric strength; insulation testing; life testing; organic insulating materials; polymer films; 50 Hz to 30 kHz; aging-model constants; applied frequency; applied voltage; breakdown studies; electric fields; electric stress; exponential model; inverse power; polypropylene film; thermodynamic model; time to failure; Aging; Dielectrics and electrical insulation; Electronics industry; Equations; Frequency; Inverse problems; Life testing; Thermal stresses; Thermodynamics; Voltage;
Journal_Title :
Dielectrics and Electrical Insulation, IEEE Transactions on
