Using electric motor as a generator

[mopacman]

Lindsey books had book on this. This can be done. They do use these on hydro power. A few motors wont work most will. It will produce AC at the voltage it is rated to run on. It would be a good project to do.

 

[Pooh_Bear]

I had ordered one of those books from Lindsay once,
but they sent me back a note saying that book was out of stock.
I may give them a call and see if they ever got any more of them.

I have a lot of the Lindsay books.

Pooh Bear

 

[schmism]

most generators use a brushless design (ie spin the magnets not the coils) the reason for this is the brushes are very "noisy" ie the frequency ouput looks like crap... which may not be very important for powertools but will wreak havoc with anything electronic.

My suggestion is go with a hi-amp alternator and run it off the PTO with proper pully increase/reduction to get the proper alternator rpm at minimal pto speed.

doubled with a couple of deep cycle batteries and a good inverter it would be a suffecent setup for all but he most demanding high current loads

 

[Pooh_Bear]

But an inverter that handles 220v is too expensive.
I could just buy a PTO generator for that.

I have some 220v motors. I wondered if I could convert them to generators.

What I am seeing in my searches on the internet
is to connect some run caps across the motor leads
and spin the motor a little faster than its rated speed.
And this will give me 1/10 the rated power of the motor.
I am wondering if that figure is correct.
Seems like there would be a way to get nearly full power out.

Pooh Bear