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 430
ey in Fig. 323).The motor having eight field poles, its synchronous speed is 570r. p. m.; and since both the alternator and the exciter are coupled tothe same shaft, all the machines run at 570 r. p. m. The alternator having 12 field poles, the frequency of its in-duced electromotive forces is 57… … than those of the alternating currents which are supplied to thedriving synchronous motor. 385 370 ALTERNATING-CURRENT MACHINERY Fig. 324 is a view of a motor-generator set built by the GeneralElectric Company. It consists of a compound-wound direct-currentgenerator driven by an induction motor,…
Electrical engineering
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