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Low-frequency eddy-current loss estimation in long conductors by using the moment of inertia of cross sections

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2 Author(s)
Namjoshi, K.V. ; Dept. of Electr. Eng., Toronto Univ., Ont., Canada ; Biringer, P.P.

A simple method is presented to estimate low-frequency eddy-current losses in long nonmagnetic conductors of uniform cross section when subjected to axial or transverse magnetic field. The method involves calculation of the moment of inertia of the conductor cross section. In the case of transverse fields, the relationship obtained agrees with analytical results for cross sections which have a symmetry axis parallel to the incident field. For axial fields the proposed relationship agrees with the analytical expressions for circular and elliptical cross sections and gives results with reasonable accuracy for rectangular cross sections

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Magnetics, IEEE Transactions on  (Volume:24 ,  Issue: 5 )