Hobart, H. M. (Henry Metcalf), 1868-1946 ed · Philadelphia, J. B. Lippincott · leaf 118
m n Fig. 3.—Three-phase Variable-speed Induction MotorN, Neutral point. it is difficult to ascertain precisely how farhe carried his invention. It was revived in1902 by Winter and Eichberg, who were thefirst to state explicitly and fully the possi-bilities of the machine. … A-OU Fig. 4.—Phase Diagram of a Three-phase Variable-speedInduction Motor A, Phase I. B, Phase II. 0, Phase III. variable-speed induction motor, and in fig.4 are shown the phase relations of the statorand rotor circuits. Polyphase Conduction Motor, ShuntVariable-SPEED.—This motor, proposedby Lamme,…
Electrical engineering
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