Results 251 to 260 of about 82,272 (307)

Eddy Current Losses in Conducting Slabs

IEEE Transactions on Power Apparatus and Systems, 1971
This paper considers the problem of calculating the eddy current losses in a rectangular conducting slab in a magnetic field which would be uniform if the slab were not present. The length axis is perpendicular to the uniform field, but there may be an angular displacement' about this axis.
J. McWhirter, M. Thomas
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Eddy current losses at cryogenic temperatures

IEEE Transactions on Magnetics, 1993
The effect of thermal processes on eddy-current losses in the structural elements of cryogenic and superconducting devices are analyzed. Maxwell's equations coupled with the heat-conduction equation are solved, taking into account the dependence of resistivity, heat capacity, and heat-transfer coefficient on temperature.
V. Sokolovsky, V. Meerovich, M. Slonim
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Intersheet eddy-current loss in laminated cores

Electrical Engineering, 1937
CORE LOSS in laminated structures subjected to an alternating magnetomotive force is made up of a hysteresis loss and an eddy-current loss. In modern power transformers the eddy-current loss is approximately 1/4 to 1/3 of the total loss.
L. V. Bewley, Hillel Poritsky
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Tooth-frequency eddy-current loss

Electrical Engineering, 1937
A method of recording, by means of an oscillograph, the eddy currents in various parts of the cross section of a squirrel-cage-rotor bar is presented in this paper. From such records the magnitude of the power loss caused by eddy currents, and its variation with load, may be determined. A series of tests of this nature has been made; the results, which
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Eddy Current Losses in Armature Conductors

Transactions of the American Institute of Electrical Engineers, 1920
This paper is an extension to the author's paper in Vo. XXXIX Pages 997 to 1047 on Eddy Current Losses in Armature Conductors. In this present paper additional formulas are given for the cases where transposed coils are used and also methods given for quickly estimating the increased loss due to eddy currents.
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Eddy current and hysteresis losses in ferromagnetic media

IEEE Transactions on Magnetics, 1998
This paper is a contribution to the evaluation of losses in ferromagnetic media, due to eddy currents and magnetic hysteresis, the field source being the time harmonic induced e.m.f. The fundamental field equations are solved numerically by using a finite element formulation, corresponding to the space discretization, and a second order trapezoidal ...
V.M. Machado, A.L. Ribeiro
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Eddy-current losses in saturated cylinders

IEEE Transactions on Communication and Electronics, 1964
This paper discusses the process of magnetization and the eddy-current losses in saturated cylinders subjected to a sinusoidal magnetic field. Maxwell's equations are solved in cylindrical co-ordinates for an assumed magnetization curve B = B s sign H.
B. Béland, J. Robert
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Eddy current iron losses in axially laminated brushless motors

IEE Proceedings - Electric Power Applications, 1995
The paper presents an analytical procedure for the evaluation of iron losses produced by eddy currents in the rotor sheets of axially laminated VR motors. These losses cannot be neglected especially in inverter fed closed loop operations. To simplify the eddy currents computation, the magnetic field in iron sheets is obtained by separately considering ...
MARIGNETTI, Fabrizio, S. BOBBIO, A. DEL PIZZO, E. PAGANO   +3 more
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Eddy-current losses in unbonded tubes

Proceedings of the Institution of Electrical Engineers, 1975
A series solution for the eddy-current loss in thin isolated cable sheaths, busbar enclosures, water cooling pipes etc. has been developed using Carter's method. The theory, which takes into account the magnetic field set up by the tube eddy currents themselves, can be applied to any system where the primary conductor current within a tube is coaxial ...
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Large signal eddy current losses beyond 100kHz

IEEE Transactions on Magnetics, 1984
Eddy current losses under large flux excitation in Mn-Zn ferrite cores and both polycrystalline and amorphous metallic cape cores of thickness 4μm to 28μm are measured in the frequency range up to 1MHz. Beyond 100kHz, the complex behaviors of magnetization in metallic cores as seen in the lower frequency range disappear and eddy current losses are only
null Yo Sakaki, T. Sato
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