Journal ArticleDOI
Effective resistance to alternating currents of multilayer windings
Edward Bennett,Sidney C. Larson +1 more
TLDR
In this article, a multilayer winding carrying an alternating current, such as the windings illustrated in figures 1, 2, and 3, each layer of copper lies in the alternating magnetic field set up by the current in all the other layers.Abstract:
IN any multilayer winding carrying an alternating current, such as the windings illustrated in figures 1, 2, and 3, each layer of copper lies in the alternating magnetic field set up by the current in all the other layers. Eddy currents are set up in each layer in a direction to partly neutralize the magnetic intensities in the interior of the copper wire in each layer. As a result of the eddy-current losses in the copper, the effective resistance of the winding to the alternating current it carries may be many times its resistance to continuous currents.read more
Citations
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Dissertation
High performance DC-AC conversion techniques for the more electric aircraft
TL;DR: In this article, the authors identify the semiconductor losses and the weight of the AC filter as two key design aspects that significantly affect the power density of DC-AC converters.
References
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Journal ArticleDOI
Eddy Currents in Large Slot-Wound Conductors
TL;DR: In this article, the authors discuss the more important causes of eddy currents in heavy conductors carrying alternating currents and surrounded on three sides by iron, and propose a method to identify the most important causes.
Journal ArticleDOI
Eddy Current Losses in Armature Conductors
TL;DR: In this paper, an extension to the author's paper in Vo. XXXIX Pages 997 to 1047 on Eddy Current Losses in Armature Conductors is presented. And in this extension, 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.
Journal ArticleDOI
Heat Losses in Stranded Armature Conductors
TL;DR: In this article, the authors extended the method of complex hyperbolic functions to the solution of the problem of heat losses in stranded conductors embedded in rectangular slots, where the insulation between the strands was assumed to have no appreciable thickness.