Principles and practice of electrical engineering (1914)
Gray, Alexander, 1882-1921 · New York [etc.] McGraw-Hill Book Company, inc. · leaf 314
his may be seen from Fig. 339 in whichthe current lags by such a small angle 0that there is practi-cally no opposing torque. The angle of lag in a circuit may be decreased by increasing theresistance of the circuit without changing the value of the react- Art. 314] POLYPHASE INDUCTION MOTORS 289… … A B Fig. 340.—Effect of resistance on the magnitude and on the phase angle ofcurrent in a series circuit. ance is put into the rotor bars to reduce the starting current tothe full-load value, the angle of lag of the rotor currents will be sosmall that the torque is all effective, and full-load…
Electrical engineering
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