6533b83afe1ef96bd12a7a10

RESEARCH PRODUCT

Simplified Hybrid PD Model in Voids

Roberto CandelaGuido AlaFabio ViolaPietro Romano

subject

Void (astronomy)Engineeringbusiness.industryPhysical approachConductanceProbability density functionMechanicsEpoxyPD model Partial discharge (PD) Weibull function electrical insulation probability function voidSettore ING-IND/31 - ElettrotecnicaTemperature and pressurevisual_artElectronic engineeringvisual_art.visual_art_mediumbusinessVoltageWeibull distribution

description

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.

yearjournalcountryeditionlanguage
2011-09-01
10.1109/demped.2011.6063662http://hdl.handle.net/10447/60463