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HELP WINDMILL
By Johnny35, Section Wind Posted on Sat Nov 13, 2004 at 03:56:49 AM MST
No output

I made a DC generator a long time ago and I thought I'll double with building myself an AC windmill. The problem is I am failing at it missibly and I have no idea why. I read up on electrical theory and tried to fix it on my own but I am just about to give up. So here is what I am doing so far, which is more than likely WRONG!!!
I have 12 magnets spinning, six magnets on one side of the coils, six on the other. The magnets alternate in polarity and always attract to the neighboring magnet across from the coil. So the magnets around the disc alternate (+/-, -/+, +/-, -/+, etc.) and the magnets across from one another attract one another. The coils are rapped CCW and then CC, and I don't know why really. I have the coils wired in parallel because it was the easy thing to do and the only one I really knew how to do. The wire is bare and for some reason I would think that would cause a short, but I guess not. Nothing is working and I am at my braking point!!!!

HELP WINDMILL | 4 comments (4 topical)

Re: HELP WINDMILL (3.00 / 0) (#1)
by sven on Sat Nov 13, 2004 at 04:45:15 AM MST

I'm not certain, but if the wire is bare, I think you do not have any coils, you just have 1 big loop with a very high width. This will produce very limited to no power.

Another possibility is that the coils are wound in the wrong direction, negating the current produced in 1 coil with the current produced in another (just guessing here)

Sven

In theory, there is no difference between theory and practice. In practice, there is.

Re: HELP WINDMILL (3.00 / 0) (#2)
by Flux on Sat Nov 13, 2004 at 04:46:37 AM MST

The wire is bare.

That I think is your problem. You must use wire that is insulated so that the turns do not short together. The normal " magnet " wire is coated with a thin but strong layer of enamel that prevents the turns shorting.

It seems from your description that everything else is right.

Flux

Re: HELP WINDMILL (3.00 / 0) (#3)
by troy on Sat Nov 13, 2004 at 09:39:21 AM MST

As mentioned by the others, magnet wire looks just like bare wire, but in fact IS insulated. So if your wire is plain old copper without the enamel insulation, that's your problem.

Alternatively, let's suppose you did use real magnet wire, don't forget you must scrape or burn the enamel off where you make connections.

Best regards,

troy

Re: HELP WINDMILL (3.00 / 0) (#4)
by tecker on Sat Nov 13, 2004 at 11:58:16 AM MST

Oh yeah your shorted and in parallel too the coils aren't going to retain potiaetial.
don't worry you wern't born knowing electrical fundimentals . start over and grab some
magnet wire.

HELP WINDMILL | 4 comments (4 topical)

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