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To: Neidermeyer
"you have the same torque per hundred rpm at barely running and at 10k."

No, the same power. Torque is half at twice the RPM.

50 posted on 07/30/2007 5:39:34 PM PDT by zipper
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To: zipper

I think...I might be mistaken, but I’m going to go on a limb and say that the torque of an electric motor is max at zero RPMs. In gasoline motors max occurs somewhere between 2000 and 4000 for the usual normal everyday automotive engine. For a diesel it is sometimes just under 1000 but usually 1500 to 2000.

I don’t recall the difference in power and torque output curves for normal variable speed electric motors vs freek drives (variable frequency motors), but I think the freek drives have superior low speed power. I know there’s less heat generated. I’m guessing a freek drive could really haul a$$ in a drag race if you had a computer modulating the frequency vs weel spin all the way down the strip.


55 posted on 07/30/2007 6:42:40 PM PDT by mamelukesabre
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