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 39
)oles produced upon the other elements should always he main-tained in the ]u-oper relation to the former, irresjKctive of thespeed of the motor. Such a condition exists in a continuouscurrent motor; but in a synchronous motor, such as desci-ibed,this condition is fulfilled oidy when the speed is… … Fu.. 1-4. in Fig, 14, are sutticient, but a greater nund)er may be advan-tageously employed. It results fn»m this (lisposition that whenthe poles of the ring are >liift •(!, currents are generated in theclosed armature coils. These currents are the most inten.<e at ornear the points of the…
Electric currents, Alternating · Electrical engineering
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