Reply to "EMD E unit electrical system redundancy question"

StuartOGR Forum Member

prrjim posted:
I think the EMD E units had two MG sets. Also I think the Baldwin Centipedes did.
When those units were designed, it seems most diesel prime movers of the size that could be used in a locomotive were in the 1000-1500 HP range. Hence to get a 2000 HP unit, EMD used two prime movers.
Diesels with 2000 and greater HP with one MG did not appear until the late 50s or early 60s.

Fairbanks Morse Erie Built - 2000 hp Roots blower 10 cylinder 38D-8 1/8 opposed piston prime mover - December 1945.

Alco PA-1 - 2000 hp turbocharged 16V-244 prime mover - June 1946.

Stuart

9/8/1910:00 PM

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