Title :
Protective Relays on Pa. Locomotives
Author :
Luther, Benjamin
Author_Institution :
General Elec Co., Erie, Pa.
Abstract :
No current rupturing device is provided between pantograph and main transformer on electric locomotives recently placed in operation on the Pennsylvania Railroad; instead a ``pantograph relay´´ is used which is connected so as to utilize the substation circuit breakers to open high voltage short circuits, grounds, or overloads ofi the locomotive. A voltage relay is used to change the field strength of the traction motors at a predetermined speed, and slip relays provide protection against wheel slippage.
Keywords :
Circuit breakers; Circuit faults; Protective relaying; Relays; Substations; Traction motors; Voltage;
Journal_Title :
American Institute of Electrical Engineers, Transactions of the
DOI :
10.1109/T-AIEE.1934.5056615
