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Multistress aging of epoxy-mica insulation system

Srinivas, MB and Ramu, TS (1992) Multistress aging of epoxy-mica insulation system. In: of IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP), 18-21 Oct. 1992, Victoria, BC, Canada, pp. 778-783.

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Proposes a novel empirical multifactor stress model which involves an additional mechanical (vibrational or fatigue) stress. The model is based on data obtained on epoxy-mica-insulated high-voltage generator coils. The possible degradation mechanisms under combined stress are discussed, highlighting those under fatigue stress based on Miner's cumulative damage concept. It is concluded that the empirical model presented here can be employed to estimate the insulation life under service conditions with a reasonable degree of accuracy.

Item Type: Conference Paper
Publisher: IEEE
Additional Information: 1992 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE
Keywords: ageing;coils;composite insulating materials;insulation testing;life testing;machine insulation
Department/Centre: Division of Electrical Sciences > High Voltage Engineering (merged with EE)
Date Deposited: 11 Jan 2008
Last Modified: 19 Sep 2010 04:38
URI: http://eprints.iisc.ac.in/id/eprint/11136

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