Titlebook: Electromagnetic Fields in Electrical Engineering; A. Savini,J. Turowski Book 1988 Plenum Press, New York 1988 Metall.Motor.Phase.Potential

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Power Losses in Electrotechnical Sheet Steel under Rotational Magnetizationple 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.

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Scalar Potential Models for Magnetic Fields of Volume Current Distributionsof fictitious magnetization. The general formulation of the magnetic field problems, based on the equations and boundary conditions satisfied by this scalar potential, is presented. For practical configurations, the magnetic field due to given volume current distributions can be determined from that

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Induction

A Contribution to the Theory of Skin-Effect circuit does not mean that we know the distribution of the current density over the cross-section of the conductors. There are no convincing experiments to prove the existing theory because we cannot measure the current density distribution in the conductors.

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重力

A Method for Losses Evaluation in Large Power Transformer Tanksalculation method is firstly described: it consists in the calculation of vector potential, starting from the diffusion equation discretized by means of the Finite Elements Method, with the ferromagnetic material of the tank taken as linear; the eddy current losses are then calculated. Finally, the

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