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 321
he field coils in place. The fieldcoils are rectangular in shape, as shown in Fig. 47. The end flangesof the spools are ventilated and ducts are formed in the coils. In the larger machines, the series and the shunt coils are woundon separate parts of the bobbin, while in the smaller sizes the… … Fig. 47. General Electric Ventilated Field Coil 285 40 TYPES OF GENERATORS AND MOTORS trated in Fig. 49, are inserted. These are made of steel strips set onedge and interlocked with the laminations, thus forming ventilating
Electrical engineering
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