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 356
Fig. 86. Electro-Dynamic Motor Showing Interpoles … Fig. 87. Interpolo Motor Armature Showing Ball BearingsCourtesy of Electro-Dynamic Company 316 TYPES OF GENERATORS AND MOTORS 71 permit the gradual approach to maximum field strength under thepoles. The interpoles are made of wrought iron or electrical steel.Main and interpole field coils are…
Electrical engineering
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