Reply to "Full power current draw"

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PRR Man posted:
Thank you Jack.
Then the reason why modern high horsepower diesels are now designed with AC traction motors, that are variable frequency?

There are many, MANY reasons for the development & use of AC Traction locomotives, one of the main reasons being the drastic reduction in maintenance costs of the AC 3 phase induction motor (which has only one moving component, i.e. the rotor), over the DC series wound motor, as well was the great increase in torque (tractive effort).

1/18/2011:45 AM

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