NDLI: The power losses calculation technique of electrical machines using the heat transfer theory

Content Provider	IEEE Xplore Digital Library
Author	Preecha, P. Dejvises, J.
Copyright Year	2007
Description	Author affiliation: Dept. of Power Eng., Univ. of Technol., Bangkok (Preecha, P.; Dejvises, J.)
Abstract	The paper proposes the estimation of power losses in electrical machines using a measurement technique based upon electrical machines ventilation wind temperature and a heat transfer equation. Three machine types are tested under various load conditions using the proposed technique. The first machine type are a three-phase 2.24 kW and a 3.73 kW induction motors. The second is a 4.5 kW synchronous generator. The last is a 5 kW dc machine which is operated as both motor and generator. The results show that the machine power losses calculated from the proposed technique has an error less than 4 % comparing with power losses from the experiment. Therefore, the technique can be acceptable for the estimation of power losses in electrical machine. The main advantage of this method is that the machines need not to stop or to be removed from their operation process in order to measure their losses.
Starting Page	297
Ending Page	301
File Size	248492
Page Count	5
File Format	PDF
ISBN	9789810594237
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-12-03
Publisher Place	Singapore
Access Restriction	Subscribed
Rights Holder	Nanyang Technological University
Subject Keyword	Temperature Induction motors DC motors Equations DC machines Measurement techniques Ventilation Synchronous generators machines power losses heat transfer Heat transfer Testing
Content Type	Text
Resource Type	Article

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