Generator

Hi, thanks all

The 3phase conversion is interesting, but this is not what I
meant. I wondered if any have converted a 3phase motor, to a
3phase generator.

If it is connected to a line, then an induction motor that is
forced above the rated rpm, will start acting as a generator. The
question is, does it need the powerline as a ballast, or is there
some other way ?

I wondered if you could "start" it with a small powered electronic
"thing", and get enough induction in the rotor, so it would build
up its own field. This could be done, - I think, but what would
happen without a large enough load ? The powerlines are "stiff
enough" - to hold the field, and in fact they use this technique
to balance off a "too inductive" power line, in other words they
correct the phase angle "phi" . The question is, if you don't
have a ballast like the power line, could you still make it work
as a generator ?

Or is there no way around it, other than changing the rotor
construction ?

Try to understand what I mean, I don't find the correct words to
describe it. And again, thanks for the other input, I checked out

the "urls".

//ARNE