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 450
plates are cast with extensions to sup-port the ends of the rotor coils. The rotor slots are skewed, asshown in Fig. 208, in all except the largest motors. The rotor wind-ings are three-phase, star-connected, and of insulated copper wireor strap placed in partly closed slots. The collector consists… … Fig. 209. Westinghouse Type AR Single-Phase Repulsion Motor called for, motors of 100 h. p. and larger are built with a device fordirectly short-circuiting the secondary windings shunting the currentfrom the collector rings, brushes, and controller. Small Single-Phase Repulsion Type Motors. The…
Electrical engineering
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