THE THEORY OF SOME A-C. COMMUTATOR MOTORS WITH SERIES CHARACTERISTICS: II. THE WINTER-EICHBERG COMPENSATED REPULSION MOTOR

Abstract

The method of analysis applied to the simple repulsion motor, in Part I of this paper (1), is now used in a study of the characteristics of the Winter–Eichberg compensated repulsion motor. Elementary explanations of this machine often contain statements that the power factor becomes leading at high speeds, but this is not necessarily true. The effect of the circulating currents in the armature coils short-circuited by the brushes may well be such that the power factor is always lagging and never reaches unity. In the development of the current locus, it is shown how this interesting effect depends on the resistance of the short-circuited coils.