Title :
A phenomenological aging model for combined thermal and electrical stress
Author_Institution :
Norwegian Electr. Power Res. Inst., Trondheim, Norway
fDate :
12/1/1997 12:00:00 AM
Abstract :
A new aging model for thermal-electrical aging is proposed. The combined effect of temperature and partial discharges was investigated using epoxy samples. The new model is based on measurements of void gas pressure and time-to-breakdown experiments. This approach is quite opposite to other aging models in that the new model is based on measurements of a physical parameter which is a function of the aging rate itself
Keywords :
ageing; electric breakdown; epoxy insulation; partial discharges; voids (solid); aging; electrical stress; epoxy insulation; partial discharge; phenomenological model; temperature effect; thermal stress; time-to-breakdown; void gas pressure; Accelerated aging; Degradation; Dielectrics and electrical insulation; Energy barrier; Partial discharges; Particle measurements; Pressure measurement; Tellurium; Thermal stresses; Thermodynamics;
Journal_Title :
Dielectrics and Electrical Insulation, IEEE Transactions on
