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A Phenomenological Aging Model for Combined Thermal and Electrical
Stress, by A C Gjaerde, Norw EPRI, Norway
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.
IEEE Transactions on Dielectrics and Electrical Insulation, Vol 4,
No 6, Dec 1997
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