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 69
by suitably designingthe series winding, it is possible to obtain a motor whose speed through-out its whole range of load varies very little. This advantage wasearly recognized; but at the time the speed of ordinary shunt motorswas sufficiently constant for most purposes, and the differential… … Fig. 36. Compound Dynamo Driving Compound Motoi-. 56 DIRECT-CURRENT MOTORS i? motor, after a period of comparative retirement, has now a wide fieldof usefulness. If the current through the field is reversed, so that it assists theshunt winding instead of opposing it, the machine is called a…
Electrical engineering
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