The electric motor and the transmission of power (1906)
Houston, Edwin J. (Edwin James), 1847-1914, Kennelly, Arthur E. (Arthur Edwin), 1861-1939, joint author · New York : McGraw Pub. Co. · leaf 327
Fig. 94.—One of the 5,000 HP Armatures. The revolving field ring, with its 12poles, is represented separately in Fig. 95.The poles JV, S, are of soft steel, rigidly THE TRAT^SMISSION OF POWER. 319 bolted on the interior of tlie solid nickelsteel ring, and tlie field spools are repre-sented in… … FiG. 95.—Field Ring with Poles and Bobbins in Place. nently excited by a continuous currentfrom a separate generator. The field ring-is 11 T in diameter, and revolves at 250revolutions per minute. The cover of thefield ring is shown in an inverted position 320 THE ELECTEIC MOTOR AND in Fig. 96. A,…
Electric motors
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