Multistress Aging of Stator Bars in a Three-Phase Model Stator Under Load Cycling Conditions

The aging characteristics and the life expectancy of stator bar insulating systems are examined under load cycling conditions in a three-phase model stator, such as can arise with frequent start/stops of generators in service. It is demonstrated that the rate of stator bar insulation deterioration,...

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Veröffentlicht in:	IEEE transactions on energy conversion 2012-06, Vol.27 (2), p.374-381
Hauptverfasser:	Morin, R. A., Bartnikas, R.
Format:	Artikel
Sprache:	eng
Schlagworte:	Accelerated aging Bars Cycles Deterioration Direct power generation Insulation Life expectancy Load cycling effects model stator multistress aging Plugs Stator bars Stators Stress
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creator	Morin, R. A. Bartnikas, R.
description	The aging characteristics and the life expectancy of stator bar insulating systems are examined under load cycling conditions in a three-phase model stator, such as can arise with frequent start/stops of generators in service. It is demonstrated that the rate of stator bar insulation deterioration, when subjected simultaneously to electrical, mechanical, and thermal stresses, is influenced by the number of load cycles and magnitude of the temperature swings between the full- and zero-load conditions.
doi_str_mv	10.1109/TEC.2012.2187902
format	Article
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A. ; Bartnikas, R.</creator><creatorcontrib>Morin, R. A. ; Bartnikas, R.</creatorcontrib><description>The aging characteristics and the life expectancy of stator bar insulating systems are examined under load cycling conditions in a three-phase model stator, such as can arise with frequent start/stops of generators in service. 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It is demonstrated that the rate of stator bar insulation deterioration, when subjected simultaneously to electrical, mechanical, and thermal stresses, is influenced by the number of load cycles and magnitude of the temperature swings between the full- and zero-load conditions.</description><subject>Accelerated aging</subject><subject>Bars</subject><subject>Cycles</subject><subject>Deterioration</subject><subject>Direct power generation</subject><subject>Insulation</subject><subject>Life expectancy</subject><subject>Load cycling effects</subject><subject>model stator</subject><subject>multistress aging</subject><subject>Plugs</subject><subject>Stator bars</subject><subject>Stators</subject><subject>Stress</subject><issn>0885-8969</issn><issn>1558-0059</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNqF0T1v2zAQBmCiSIE6TvYCXQh06SLnjhQpanQE9wOwkQKxtwICQ54SBbKYkvKQfx8aTjN0ycQbnveA48vYZ4QFItRX21WzEIBiIdBUNYgPbIZKmQJA1WdsBsaowtS6_sTOU3oEwFIJnLE_m8Mw9WmKlBJf3vfjPQ8dv53sFCK_tjHxfuSWbx8iUfH7wSbim-Bp-Ed2o6fI18F63jy74Zhvwuj7qQ9jumAfOzskunx952z3fbVtfhbrmx-_muW6cFJVU-FBICGA01CC78o72_k7Y8gK8ggk0eWhFtpW2teGXOU7LVVnrNOoLTk5Z99Oe59i-HugNLX7PjkaBjtSOKQWtcIS83eI9ylIlFjWlcz063_0MRzimA_JChUYCbLKCk7KxZBSpK59iv3exueM2mMzbW6mPTbTvjaTI19OkZ6I3rhGIxWU8gXoioiE</recordid><startdate>20120601</startdate><enddate>20120601</enddate><creator>Morin, R. 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subjects	Accelerated aging Bars Cycles Deterioration Direct power generation Insulation Life expectancy Load cycling effects model stator multistress aging Plugs Stator bars Stators Stress
title	Multistress Aging of Stator Bars in a Three-Phase Model Stator Under Load Cycling Conditions
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