Cyclopedia of applied electricity : a general reference work on direct-current generators and motors, storage batteries, electrochemistry, welding, electric wiring, meters, electric lighting, electric railways, power stations, switchboards, power transmission, alternating-current machinery, telegraphy, etc. (1916)
American Technical Society · Chicago : American Technical Society · leaf 78
Fig. 44. Enclosed Type R Motor. Westinghouse Elettrlc &Manufacturiug Company, Pittsburg, Pa. Since the motor is elec-trically identical with thedynamo, it is necessarymerely to design a dynamo which will deliver the rated current atthe given speed and the countrr-E.M.F. of the motor. A single… … Fig. 45. Fig. 46. Two Views of Type R Motor with Back-Gears.Westinghouse Electric & Manufacturing Company, Pittsburg, Pa. tration will suffice. Suppose it is desired to design a 230-volt motorto deliver 10 horse-power at a speed of 825 revolutions per minute.The efficiency of such a machine…
Electrical engineering
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