Electric transmission of energy and its transformation, subdivision, and distribution. A practical handbook (1894)
Kapp, Gisbert, 1852-1922 · New York, Van Nostrand · leaf 447
56, but the larger motors have armatureswound with three closed circuits and provided with con-tact rings, as shown in Fig. 157. Thury Dynamo.—The makers of this machine (Lln-dustrie Electrique, of Geneva) have developed a very 420 ELECTRIC TRANSMISSION OF ENERGY. interesting system of power… … are of the type shown in Fig. 158. They are six-polecontinuous-current dynamos, with drum-wound arma-tures. Great precautions are taken as regards insula-tion, not only of the winding from the core, but of the Fig. 157.
Electric power production
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