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 260
5000 \ / / \ / kT EFFICWITH ency EARS 7~ 4000 / \ r ■v / / \ >^ \/ / .SPEED 2CC0 / ^ >■ J / 0 1000 J / V / ^ 0 fel50 100 AMPERES Fig. 156. A motor for railway service, very similar in design tothe one just described, is the GE-216 made by the Gen- 248 DYNAMO ELECTRIC MACHINERY. … MOTORS. 249 eral Electric Company, and shown in Fig. 157. It is a4-pole motor provided with an equal number of commutat-ing poles, the latter being conducive to better commutationduring the acceleration period. The one-hour rating ofthis motor is 50 H.P. at 600 volts. The gear case rides with the…
Electric machinery
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