Twentieth century hand-book for steam engineers and electricians, with questions and answers .. (1905)
Swingle, C. F. [from old catalog], Horstmann, Henry Charles, 1858- [from old catalog], Tousley, Victor Hugo, 1875- [from old catalog] · Chicago, F. J. Drake & co. · leaf 547
ce from the 128 ELECTRICITY FOR ENGINEERS point of use Its adaptability for such work isapparent, because it can be generated at high voltagesand transformed down to any voltage desired. Itrequires less copper to transmit it, due to the highervoltages employed. By the aid of transformers it… … figure 72. of a rotary converter it can be converted into directcurrent. Rotary transformers which transform the alternatingcurrent to a direct current are simply alternating cur-rent motors connected to direct current dynamos.Sometimes these machines are mounted on the sameshaft; sometimes they…
