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 355
o H < S W 3 ^ i o ■§ w t;^ Io o Pa o (A on TYPES OF GENERATORS AND MOTORS 69 Fig. 86 is a view of one of these motors with the bearing housingsand armature removed, showing the interpoles. These motors aremanufactured in sizes from h to 75 horsepower as 4-pole machinesand in sizes from 40 to 150… … on 110-, 220-, or 500-volt circuits and giving speed variations of 6 to1, 5 to 1, 4 to 1, 3 to 1, 2 to 1, or H to 1. The field yoke is of thebest electrical steel cast in one piece. The main poles are made ofcast electrical steel or of laminated steel and are bolted to the fieldyoke. They are…
Electrical engineering
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