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 180
Fig. 27. Armafure Wiring Diagram for Series-Wound Motor Connections current. The objects are: to secure a nearly constant speed withvarying loads; to enable the motor to run at high efficiency whendrawing small currents; and to prevent sparking at heavy loads.In multipolar motors having more than… … Fig. 28. Wiring Diagram for Pour-Pole Sli.unt and Series-Wound Motors pairs of coils shown in the several diagrams. Being separated,however, it is sometimes necessary to trace out the connections.Fig. 28 represents the necessary connections for a four-pole motor,shunt-wound and series-wound. 159 38…
Electrical engineering
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