Re: (ET) Power of DC - was (no subject)

["Tim Humphrey" <hump evgrin com>]

Hmmm, my message got truncated, here's the rest...

> Yep, your right!
>
> I measured the field to be 15 ohms static. Ohms law says 36 volts and 15 
> ohms is 2.4 amps.  So at 72 volts it will
still only suck 4.8 amps, and then only for a few seconds until the 
controller starts to reduce the field. The
Curtis is capable of a 50 amp field for 2 minutes. But the motor isn't 
capable of accepting it, the controller will
only provide what the motor will take. In order for it to take the full 50 
amps the controller would have to hit it
with
50 * 15 = 750 Volts. That just ain't gonna happen.  This controller also 
has a fully programmable four quadrant field
control, so I think it will be alright.

Thanks for asking though. I'd rather be challenged than do something 
stupid, because I wasn't.


>




-- 
Stay Charged!
Hump
"Ignorance is treatable, with a good prognosis. However, if left 
untreated, it develops into Arrogance, which is often
fatal. :-)" -- Lee Hart

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