International Library of Technology · Scranton, International Textbook Co. · leaf 291
ngines are nowquite common in connection with electric-lighting work.Their construction is essentially the same as that of belted § 16 ELECTRIC LIGHTING. 93 machines. Direct-connected alternators run at a lowerspeed than the belt-driven machines, hence, for a given fre-quency, they must have a… … Fig. 56. designed for direct connection to a waterwheel running150 revolutions per minute. This machine is of 650 kilo-watts capacity and is a good example of the revolving-arma-ture and stationary-field type. 94 ELECTRIC LIGHTING. § 16 99. General Remarks.—From the foregoing it will beseen that…
Electrical engineering
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