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 420
a phase-wound secondary. The stators ofthe two types of motors are identical. The frame of these motorsis of the box type, with large cored openings that permit of thepassage of a large amount of air and make the motors cool running.Lugs are cast on the interior surface of the frame to support… … Fig. 172. Exploded View of Small AN Allis-Chalniers Motor annealed and coated with insulating varnish. In the large motorsthese punchings are assembled in the frame with spacers introducedat intervals to form ventilating ducts through which currents of airare forced by the rotating element, thereby…
Electrical engineering
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