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 491
hine mightbe excited in this or a similar manner, there being sutticient ex-perimental evidence to warrant sucii an assertion, such a mode ofexcitation would be wasteful. But a uni|)olar dvnamo oi- motor, such as shown in Fiir. 2l>2.may be excited in an ethcient maniiei by simply ])roperly… … Fig. 293. Ftc. 201. cylindei o is supposed to be aiTanged to rotate between the twopoles N and s (»f a magnet, which c(»mpletely cover it on bothbides, the c»»nt»tnrs of the disc and poles being represented i)y thecircles </ and ^/ respectively, the upper pole being omitted forthe sake of…
Electric currents, Alternating · Electrical engineering
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