Electrification of Pennsylvania Railroad from New York to Washington, DC, and Harrisburg, Pa, necessitated solution of new problems in relays. Before Am Inst Elec Engrs. (Trans) (See also - discussion p 273-7)
Pennsylvania railroad New York-Washington-Harrisburg electrification -- Relay protection of power supply system
Elec Eng
Electrical Engineering ; 58 , n 6
1939
8 pages
Article (Journal)
English
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Pennsylvania railroad electrification: New York-Washington
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