Principles and practice of electrical engineering (1914)
Gray, Alexander, 1882-1921 · New York [etc.] McGraw-Hill Book Company, inc. · leaf 353
se inductionmotor is specially suited, even although it is a constant speedmotor, and that is for mountain grade work where the grades arelong and fairly uniform. When the car is on the down grade, themotors tend to speed up and run above synchronous speed, and,under these conditions they become… … o 43 Art. 361] ELECTRIC TRACTION 329 to the line, so that braking with brake shoes is not necessary andthe danger of trouble on a long grade due to overheating of brakeshoes is practically eliminated. 359. Motor Construction.—To keep down the size of the motorsthey must run at a high speed, see…
Electrical engineering
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