Power Losses in Electrotechnical Sheet Steel under Rotational Magnetization

  • Jan Anuszczyk


In magnetic circuits of electric machines, as well as in nodes of three-phase transformer cores, rotational magnetization occurs. Calculations of iron losses in this kind of magnetization are based upon the knowledge of rotational field distribution in particular elements of the considered magnetic circuit. The rotational field inside the iron core was calculated by means of reluctance network method1. Calculations were carried out for a ring sample magnetic circuit and for a three-phase induction motor magnetic circuit. In this paper an idea of calculations and results of examinations of basic losses in a ring sample laminated core have been presented.


Power Loss Induction Motor Magnetic Circuit Poynting Vector Hysteresis Loss 
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  1. 1.
    J. Anuszczyk, Evaluation of rotary magnetization in stator yoke of induction motor by equivalent reluctance network, Rozpr. Elektrotech., 1:83 (1985), in Polish.Google Scholar
  2. 2.
    J. Anuszczyk, A method and a device for measurements of power losses in ferromagnetics under rotational magnetization, Polish Patent No. 127489 (1984).Google Scholar
  3. 3.
    W. Wolff, “Drehmagnetisierung in Dynamoblechen”, Darmstadt (1979).Google Scholar

Copyright information

© Plenum Press, New York 1988

Authors and Affiliations

  • Jan Anuszczyk
    • 1
  1. 1.Institute of Electrical Machines and TransformersTechnical University of LodzPoland

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