Substation of Philadelphia Electric Co. serves electrified section of Pennsylvania Railroad near Wilmington, Del.; 13,200-volt 25-cycle frequency converters supply energy to step-up equipment of railroad.
Supplying railroad power
Elec. World
Electrical World ; 93 , n 12
1929
3 pages
4 Figs.
Aufsatz (Zeitschrift)
Englisch
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