Transmission Systems for Heavy Traction

Transmission Systems for Heavy Traction

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20 is shown a car-wiring diagram for alternating- and direct-current unit-switch control, types 255-H and 251-] switch groups, schedule T-l, with four motors. The change-over switch is operated for direct current as follows: The plug is inserted into the controller cut-out of the lefthand controller. Contact 3+ is connected to contact 8.4, and current flows to 8.4a€”stud 11a€”wire 8a€”contact point 8 on A.-C. relayanbsp;...

Title:Transmission Systems for Heavy Traction
Author:International Correspondence Schools
Publisher: - 1911


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