Principles and practice of electrical engineering (1914)
Gray, Alexander, 1882-1921 · New York [etc.] McGraw-Hill Book Company, inc. · leaf 108
is being reversed is in what has been called a reversingfield, see page 65; in the case of the generator shown in diagramA Fig. 106, this reversing field is under the tip of the north pole. The same machine operating as a motor is shown in diagram B,the direction of motion and the polarity of the… … A B Generator Motor Fig. 106.—Armature magnetic field in a generator and in a motor. is under tip of the N pole, that for the conductor at the same brushof the motor must be under the tip of the S pole since the motor isrunning in the same direction as the generator but with a reversedcurrent. From…
Electrical engineering
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