The inventions : researches and writing of Nikola Tesla, with special reference to his work in polyphase currents and high potential lighting (1894)
Martin, Thomas Commerford, 1856-1924, Tesla, Nikola, 1856-1943 · New York : The Electrical Engineer · leaf 36
he load. IOLYPHASE tURREMS. 17 These motors may be operated in tliree different wars: 1. Bythe alternate cnrrents of the source only. 2. By a combined ac-tion of these and of induced currents. 3. By the joint action ofalternate and continuous currents. The simplest form of a synchronous motor is… … Fi(i 10. as an armutiire. Such a uiotoi is .shown in V\^. \K The discbeing arranged to rotate freely within the ring in close proximityto the projections, it is evident that as the poles are shifted itwill, owing to its tendency to place itself in such a position as toond^race tlie greatest number…
Electric currents, Alternating · Electrical engineering
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