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 188
General Electric Company for use in small isolatedplants. The alternator is belt-driven at 1,800 r. p. m. and, there-fore, requires four poles to give a frequency of 60 cycles. The view shows three collector rings mounted on the armatureshaft for the collection of the three-phase currents, and a… … Fig. 159. General Electric 25-Kw. Three-Phase Alternator nected to the commutator and supplies the exciting current to thefield coils. The main armature winding generates the three-phasealternating currents and is connected to the three collector rings.The field structure consists of laminated pole…
Electrical engineering
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