作者: Supriyo Das , Nandini Gupta
DOI: 10.1002/ETEP.1876
关键词:
摘要: Summary Polymeric dielectrics are prone to space charge trapping within their volume. This in turn affects many of dielectric properties including breakdown strength and transport. In the current paper, we attempt characterise accumulation transport polymeric under application DC field. Epoxy (EP) resin polyethylene (PE) chosen as materials be investigated on account prevalence high voltage industry. Pulsed electro-acoustic measurements performed EP PE specimens. Further, effect ageing is studied for both PE, by thermally controlled conditions. addition, exposed a humid environment over long periods prolonged exposure moisture studied. From experimental results, density trapped obtained different cases. Fourier transform infrared spectroscopy carried out identify chemical changes due ageing, with an aim relating physicochemical material trapping. Copyright © 2014 John Wiley & Sons, Ltd.