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Accelerated multistress aging of polymer nanocomposites and its condition monitoring

Preetha, P and Thomas, Joy M (2012) Accelerated multistress aging of polymer nanocomposites and its condition monitoring. In: 2012 International Conference on Condition Monitoring and Diagnosis (CMD), 23-27 Sept. 2012, Bali, Indonesia, pp. 778-781.

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Official URL: http://dx.doi.org/10.1109/CMD.2012.6416263

Abstract

In recent years, the time dependant maintenance of expensive high voltage power equipments is getting replaced by condition based maintenance so as to detect apriori an impending failure of the equipment. For condition based maintenance, most monitoring systems concentrate on the electrical quantities such as measurement and evaluation of partial discharges, tan delta, tip-up test, dielectric strength, insulation resistance, polarization and depolarization current. However, in the case of equipments being developed with novel nanodielectric insulating materials, the variation in these parameters before an impending failure is not available. Hence in this work, accelerated electrothermal aging studies have been conducted on unfilled epoxy as well as epoxy nanocomposite samples of 5 wt% filler loading, and the tan d values were continuously monitored to obtain the condition of the samples under study. It was observed that those samples whose tan d increased at a rapid rate failed first.

Item Type: Conference Proceedings
Additional Information: Copyright of this article belongs to IEEE.
Keywords: Epoxy Nanocomposites; Electrothermal Aging; Condition Monitoring; Tan
Department/Centre: Division of Electrical Sciences > Electrical Engineering
Depositing User: Francis Jayakanth
Date Deposited: 21 May 2013 11:55
Last Modified: 21 May 2013 11:55
URI: http://eprints.iisc.ac.in/id/eprint/46593

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