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 210
Fig. 180. Method of Bracing Armature Coils 184 ALTERNATING-CURRENT MACHINERY 173 manner as to insure them against displacement, as shown inFig. 180. Rotor. The revolving field or rotors are constructed with two,four, or six poles, according to the frequency and capacity of the … Fig. ISl. Four-Pole Rotor for 10,000-Kw. Machine machine. The fields are of small diameter and are designed withspecial care to avoid windage losses and to facilitate ventilation.The poles of the two-pole and four-pole rotors are machined fromthe disk or disks forming the central body, and the…
Electrical engineering
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