NDLI: Iron losses in induction motor teeth

Content Provider	IEEE Xplore Digital Library
Author	Schenk, H. Young, F.
Copyright Year	1965
Abstract	Waveforms of the flux densities occurring in the stator and rotor teeth of a 700 hp squirrel cage induction motor were measured for various stator voltage and load conditions. Harmonic analyses were made of these waveforms and the determined harmonic values were compared with the designer's predicted harmonic content. In addition, iron loss measurements determined using the Epstein test method were made on several materials using the same flux variations as existed in the stator and rotor teeth, Losses in the stator teeth were found to be as much as 100% greater, depending on the material being used and the induction level, than the losses measured using a pure 60 Hz sinusoidal flux variation with the same maximum induction. Losses in the rotor teeth were less than 0.1 watt/pound indicating little loss in the rotor teeth (neglecting rotor surfaces losses).
Sponsorship	IEEE Magnetics Society
Starting Page	3385
Ending Page	3387
Page Count	3
File Size	391011
File Format	PDF
ISSN	00189464
Volume Number	17
Issue Number	6
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1981-11-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Iron Induction motors Teeth Stators Loss measurement Rotors Density measurement Voltage Harmonic analysis Materials testing
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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