Principles and practice of electrical engineering (1914)
Gray, Alexander, 1882-1921 · New York [etc.] McGraw-Hill Book Company, inc. · leaf 404
ree lamps are dark at the same instant, then closethe three switches Si S2 and $3 at the same time. The startingmotor can then be disconnected by throwing the belt, and thesynchronous motor loaded by means of a prony brake. Readings.—With the applied voltage E2, the frequency, andthe brake readings… … StartingMotor Fig. 448. Curves-watts -Plot armature current, and power factor \ on an exciting current base. Vvolt amperes/Questions.—1. Explain the shapes of the curves. 2. What are the advantages and disadvantages of the syn-chronous motor compared with the induction motor? 3. What effect has the…
Electrical engineering
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