Publisher's Synopsis
Excerpt from Study of a Single-Phase Variable Speed Shunt Induction Motor
The single-phase shunt induction motor differs from the ordinary type in that its rotor is equipped with a com mutator, upon which bear two pairs of short-circuited brushes for each pair of poles on the motor. The brushes of one set are immediately under the center of the poles, and those of the other set are at right angles thereto. Obviously, the effect is a permanent short-circuit ing of the armature windings in two planes, one parallel with and the other perpendicular to the flux from the sta tor field windings.
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