Investigations on the effect of ageing on charge de-trapping processes of epoxy–alumina nanocomposites based on isothermal relaxation current measurements

Investigations on the effect of ageing on charge de-trapping processes of epoxy–alumina nanocomposites based on isothermal relaxation current measurements

In this study, the relationship between thermal ageing and charge trapping properties of epoxy-based nanocomposites has been investigated. With ageing, any dielectric material undergoes thorough degradation. This degradation significantly affects the space charge accumulation and charge trapping beh...

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Bibliographic Details
Main Authors:	Subhajit Maur, Nasirul Haque, Preetha Pottekat, Biswajit Chakraborty, Sovan Dalai, Biswendu Chatterjee
Format:	Article
Language:	English
Published:	Wiley 2020-10-01
Series:	IET Nanodielectrics
Subjects:	space charge electric current measurement alumina nanocomposites nanoparticles ageing dielectric materials epoxy insulation thermal degradation shallow traps epoxy-alumina nanocomposites trapped charge accumulation isothermal relaxation current measurements thermal ageing epoxy-based nanocomposites dielectric material space charge accumulation insulation health high-voltage direct current environment ageing conditions polarisation-depolarisation current measurements dipolar relaxation trap distribution characteristics charge formation irc measurements pdc measurements hvdc environment al(2)o(3)
Online Access:	https://digital-library.theiet.org/content/journals/10.1049/iet-nde.2020.0020

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