On Tue, 26 Aug 2003 10:38:51 -0700, Eric R Snow
wrote:

On 26 Aug 2003 09:41:36 -0700, (Dan Caster) wrote:

It will be good for the same amount of current and therefore the same
amount of wattage if the voltage is the same. What are you trying to
do and what kind of motor are you thinking of using? Induction motors
will work well especially if you use the grid to excite them.

Dan



Eric R Snow wrote in message . ..
If a motor is used as a generator will it put out about the same
wattage as it consumes when used as a motor?
Thanks,
Eric
Well. I was thinking about using a brushless DC motor to act as a
generator for boat lights. The ones that have magnets in the center
and the rotating field is produced by the drive electronics. If I spin
the magnets then I'm hoping to get usable power out of the thing. 100
watts should be plenty.
Eric
Those old DC servo motors (like old DASDI drive motors) make good
generators.