File:The Street railway journal (1907) (14573706617).jpg

Identifier: streetrailwayjo301907newy (find matches)
Title: The Street railway journal
Year: 1884 (1880s)
Authors:
Subjects: Street-railroads Electric railroads Transportation
Publisher: New York : McGraw Pub. Co.
Contributing Library: Smithsonian Libraries
Digitizing Sponsor: Smithsonian Libraries

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FLOOR OF HAMBURG-ALT ON A SINGLE-PHASE MOTOR CAR.. SHOWING HOW THE WIRING IS DONE ON THE CARFLOORING, WHICH IS TURNED UPSIDE DOWN FOR THAT PURPOSE, BEFORE THE BODY IS BUILT INTO IT Plate LII
Text Appearing After Image:
350 H.P. SINGLE-POLE. 25 CYCLE A. E. G. MOTOR TO BE HSFn ON THE ETFEL BAHN LOCOMOTIVES, SHOWN ON TEST BED DRIVING A DIRECT-CURRENT GENERATOR October 12, 1907.) STREET RAILWAY JOURNAL. 643 lower efficiency of the motors—i. e., greater energy consumption—which its opponents claim for it. As regards the first point, it is perfectly true that a singlephase motor equipment is more costly and more heavy atpresent than direct current equipment, and that the former re-quires a transformer on the car which is not required withdirect current motors. But even granted that the enormous difference in weightwhich Mr. Sprague claims between d. c. and a. c. motorsexists and that the cost were equally disproportionate, thedifference in weight and cost would take but an unimportantplace among those many and complicated considerations whichweigh with practical as well as theoretical railway engineers,managers, and directors when deciding upon the system mostsuitable to fill their requirements. For t

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