International Library of Technology · Scranton, International Textbook Co. · leaf 518
neouslyfrom the platform of any car, constitute a multiple-unittrain. 101. Suppose we take three ordinary surface trolleycars completely equipped, and that instead of running the carwires from controller to controller on each car and lettingthem end there, we run the wires from end to end, tap-ping… … Fig. 82. then we will have a three-car train. The main-currentmotor wires will run from one end of the train to the other,irrespective of the length of the train; the train can takethe current from one trolley pole or from all the poles atonce, and it can be operated from any one controller on…
Electrical engineering
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