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Power Wagon Volume 38-49 download

Power Wagon Volume 38-49 download

Power Wagon Volume 38-49 by United States Congressional House
Power Wagon Volume 38-49
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Author: United States Congressional House
Page Count: 128 pages
Published Date: 14 Jan 2013
Publisher: Rarebooksclub.com
Publication Country: Miami Fl, United States
Language: English
ISBN: 9781234105327
File size: 35 Mb
File Name: Power.Wagon.Volume.38-49.pdf
Download Link: Power Wagon Volume 38-49
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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1908 edition. Excerpt: ...by changing its field excitation, its speed meanwhile remaining constant, causes an effect similar to that of the foregoing method. It would probably be found advisablc to obtain the field current for the generator from an exciter mounted on the end of the main generator shaft, to save weight, and having its output controlled by the driver of the train. With the two latter methods, it would also be found advisable to provide a switch for connecting the two motors on each vehicle in series combination 'for climbing grades and for starting when the train was fully loaded. This switch could also be used for reversing the direction of rotation of the vehicle motors. The generator should be designed to furnish a direct current of 220 volts and the windings should be so arranged that when the output of the generator nearly equaled the output of the gas motor, the voltage of the generator would decrease and thus decrease the current flowing to the vehicle motors. This feature, while not absolutely necessary, is desirable because at no time is it possible to overload and stall the gas motor by careless operating. For instance, consider that the motors of the train, which are 220-volt direct current series motors, are operating in multiple combination, and that the train approaches a grade which requires more power than the gas motor can furnish to the motors in multiple combination. The generator voltage would decrease and thus prevent the vehicle motors and the gas motor from being overloaded, and if the driver should persist in not operating the switch to connect the vehicle motors in series combination, the train would come to a standstill if the power required was greatly in excess of what the gas motor can supply. Gasoline-Electric...

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