Principles and practice of electrical engineering (1914)
Gray, Alexander, 1882-1921 · New York [etc.] McGraw-Hill Book Company, inc. · leaf 187
Generator Motor Fig. 177.—Operation of the same shunt machine as a generator and as a motor. the direction of motion, determined by the left-hand rule, page 7is the same as in G. Since the back e.m.f. when the machine isoperating as a motor has to be practically equal to E, the e.m.f.of the machine…
Electrical engineering
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