Dynamo electric machinery; its design, construction, and operation; direct-current machines (1915)
Sheldon, Samuel, 1862-1920, Hausmann, Erich, 1886- joint author · New York, D. Van Nostrand Company; · leaf 258
mature is lyh inches and that of thecommutator is 14J inches. Brush holders, Fig. 155, forthis motor are supported by two steel studs which are 246 DYNAMO ELECTRIC MACHINERY. secured to the motor frame by means of clamps, asshown. The railway motor described in the foregoing has anominal rating of… … Fig. 155. two such motors would propel a car weighing, without pas-sengers and electrical equipment, 25 tons, over a leveltrack, and maintain a schedule speed of 30 miles per hourwith stops two miles apart. These figures are based upona gear ratio of 24-53 ^^^^ 33-inch car wheels. The performance…
Electric machinery
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