Hobart, H. M. (Henry Metcalf), 1868-1946 ed · Philadelphia, J. B. Lippincott · leaf 170
e principle of Ferraris,a progressively shifting resultant magneticflux is obtained, and, in general, the rotatorymagnetic field is an elliptical one. Whenthe two component fields do not differ inphase, the resultant is a stationary field,varying in intensity and sense from instantto instant, but… … DANIELSONS SQUIRREL-CAGE ROTOR
Electrical engineering
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