Theory of D-C. excited iron-core reactors and regulators

1 October 1924

journal article
Published by Institute of Electrical and Electronics Engineers (IEEE) in Journal of the A.I.E.E.

Vol. 43 (10) , 958-966
https://doi.org/10.1109/JAIEE.1924.6536855

Abstract

In the usual electrical machinery the magnetic saturation characteristic of iron is a handicap and in a-c. circuits gives rise to such undesirable characteristics as wave distortion and variable reactance, decreasing with increasing load. Furthermore, these characteristics are inherent in the material and can not be controlled by design to suit individual requirements or changing load conditions. Control of these characteristics can, however, be accomplished if the mean magnetic density in the core be controlled by means of a suitable d-c. excitation, in which event, the saturation characteristics of the iron can be put to some useful applications.

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