The book Electric Traction And Transmission Engineering was written by author Samuel Sheldon Here you can read free online of Electric Traction And Transmission Engineering book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Electric Traction And Transmission Engineering a good or bad book?
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105 resistance, or compensator circuits, and in general effect the changes in connection necessary in controlling the particular type of motor employed. Each of these con- tactors opens in a strong magnetic field, so that all arcs are immediately disrupted. A separate reversing switch gov- erns the direction of rotation of the motors. On motor cars all this apparatus is usually placed underneath the car, but on locomotives it is located in the cab. The contac- tors and reverser may be operated ...by solenoids or by the use of compressed air controlled by electrically operated valves. In either case the solenoids or other electromag- nets that govern the movement of the switches are connected to the wires of the auxiliary circuit and are supplied with current in proper sequence by the hand-operated master controller. The master controller is considerably smaller than the ordinary street-car controller, but is similar in appearance and method of operation. The contact fingers of each master controller are connected to the wires of the auxiliary or control circuit, which usually consists of a multiple- conductor cable.
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