Twentieth century handbook for steam engineers and electricians, with questions and answers; a practical nontechnical treatise on the care and management of steam engines, boilers and electric machinery (1922)
Swingle, Calvin Franklin, 1846- [from old catalog] · Chicago, F. J. Drake & company · leaf 1155
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 Avill revolve without any… … 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, suppose two clocks are ticking…