Twentieth century handbook for steam engineers and electricians, with questions and answers; a practical nontechnical treatise .. (1916)
Swingle, Calvin F. (Calvin Franklin), b. 1846 · Chicago, F.J. Drake & company · leaf 1155
t circuited armature, this armature will bedragged around by the rotating pole in much the sameway that a short circuited armature in a direct current ma-chine would be dragged around if the fields were revolved.Such a machine is called an induction motor. The arma-ture will revolve without any… … B BFig. 490rotary field coils The rapidity of the alternations in the external circuit de-termines the speed of the motor. Synchronous Motors.—Some alternating current motorsare known as synchronous motors. What is meant bysynchronous is, occurring at the same time, or in unison.As an example,…
