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Simplified hybrid PD model in voids

Simplified hybrid PD model in voids,10.1109/DEMPED.2011.6063662,G. Ala,R. Candela,P. Romano,F. Viola

Simplified hybrid PD model in voids  
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Φ Abstract - In this paper a novel approach to model partial discharges (PD) activity taking place inside a spherical void in epoxy resin system has been traced. The approach is based on a time varying conductance of the inner void, subjected to multistress conditions: voltage, temperature and pressure. A simple lumped circuit macro-model simulates the global effects of PD activity: the different parameters influencing the discharge phenomenon in the void are taking into account by using a physical approach resulting in a time varying conductance inside the circuit. The evaluated PD activity has been compared with experimental and simulated one for the accessible and inaccessible part of the system. A discussion on the observed changes in PD activity has been reported.
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