Talk:New Haven EP-2

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DC operation?[edit]

Does anyone know how the DC supply was used to drive AC traction motors? What was the power rating on DC power, presumably less than for the mainline AC supply? Andy Dingley (talk) 16:48, 3 June 2018 (UTC)[reply]

Dear Andy Dingley,

This is what I am searching for, but without success so far.

If there were actually AC traction motors there must have been a device to convert low voltage DC (660 V) into (low voltage) AC, most probably a rotating converter. Semiconductors for this purpose were to come decades later!

Traction motors were, as I suppose, low voltage AC (up to 660 V), supplied by a transformer on the loco - when working under the mainline high voltage AC catenary.

This is but a basic view. Next question: How did they manage speed control?

Bertold Langer 188.174.141.189 (talk) 14:09, 22 November 2022 (UTC)[reply]