At the outset, let me assure you that i know nothing about this. i am sure pretty soon this excellent thread will get lots of answers. Meanwhile, please check this out : wood103.pdf

Get hold of a copy of the following book on homebrewing your own wind turbine generators. It may be available through your public library - my wife once picked up a copy there for me to look at. It has detailed instructions and plans to build your own generator rotor & stator using rare earth magnets, for wind energy applications. It would probably apply to your needs. Good luck!

Homebrew Wind Power

A Hands-on Guide to Harnessing the Wind

By Dan Bartmann and Dan Fink
Foreword by Mick Sagrillo
320 pages, soft cover, 8 x 10 inches, 395 illustrations
ISBN 978-0-9819201-0-8
Published by Buckville Publications LLC, Masonville, CO

Hey all

I have looked at both reference materials supplied but I still cannot find a formula to tell me how many turns per coil I need for my stator ring to create a 2 T rotating magnetic field. Does anyone know how I can tell how many turns I need?

Also, what three phase automatic switch would work best for a stator ring? Do you guys know of any stator assembly manuals or directions on how to assemble and connect the stator and to tell how many turns are needed.

Thanks so much for you guy's help.

Stephen

Hey guys

I still have not found a formula that can help me determine the number of turns per coil on a six coil stator ring setup that would create anywhere from 1.2-2T magnetic field, which would be in range of the strength for a neodynium magnet. Can you guys help me out. I am not trying to build a motor, just a stator ring.

Here are a couple of links that shows kinda what I am trying to do:

http://www.tpub.com/neets/book5/18b.htm

and this link as well: http://www.wisc-online.com/objects/ViewObject.aspx?ID=IAU11808

Thanks for any help you guys can give me.

Stephen

As I have researched, all I need to create a rotating magnetic field is a stator ring with 6 coils and powered by either 3-phase AC power or DC power like in a brushless motor. My two questions are is there a formula to tell me how many turns per coil of the steel stator ring do I need to make a certain magnetic field, about 1.3T or a program that will simulate the stator ring and tell me how many turns per coil? Also, since a 3-phase power supply is very expensive and the converters start at 200 dollars for 1hp, how would I connect the six coils to use DC to create the rotating magnetic field?

Thanks so much for the help.

Stephen