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question for Ed, windstuffnow
By iFred, Section Homebrewed Electricity Posted on Tue Feb 15th, 2005 at 08:32:38 PM MST
kit wiring...

Hi Ed,
I am confused as to the wiring in the 3 phase kit that you have.
Could you clarify the wiring a bit , it looks like there is cancellations or something going on, or maybe the way I'm looking at it is wrong. Is the above diagram correct for the wiring? I just noticed that it....
Thanks!

question for Ed, windstuffnow | 6 comments (6 topical, 0 editorial)

Re: question for Ed, windstuffnow (3.00 / 0) (#1)
by monte350c on Tue Feb 15th, 2005 at 02:02:07 PM MST
(User Info)

Hi Fred,

I was greatly puzzled by this too - it's the thing Ed refers to as three single phase.

The current is flowing in the same direction in all the wires in one slot.

So where you drew in the green arrow on the coil leg, it would actually be going the other way.

Another way to describe it: in the first slot the current is flowing toward the centre, in the third slot, it's flowing away from the centre, 6th toward, 12th away, 15th toward, and 18th back to 1st.

If you can imagine unwinding all the wire, you will see the current all flows around the big loop in one direction.

I took a piece of that white 14 gauge house wire and made little arrows on it for current flow, made a big loop, then did the same type of criss-cross winding. It works!

I actually went to the trouble of rewinding this tiny little heater motor armature to check this out:

and sure enough when I applied 12 volts DC to the coil, each of the poles appears opposite polarity (N-S-N-S etc) all around the armature (checked with another small neo).

If you get a chance to take a peek inside a Delco alternator, they wind their stators very similar to this.

Ted.

Re: question for Ed, windstuffnow (3.00 / 0) (#2)
by Norm (peppysue@suite224.net) on Tue Feb 15th, 2005 at 03:09:46 PM MST
(User Info)

Hi Ted,
Were you planning on making some kind of an
alternator with this little rewound armature?
With a rim of magnets like an F&P moving
around it...you'd have an alternator...right?
Curious....
( :>) Norm.
( :>) Norm
[ Parent ]

Re: question for Ed, windstuffnow (3.00 / 0) (#4)
by monte350c on Tue Feb 15th, 2005 at 07:10:58 PM MST
(User Info)

Hi Norm,

That is definitely possible!

I had thought of clamping the old commutator end of this armature - actually welding it - to the mount. Then preparing a round can with a double bearing on the outer end. The can would have 12 magnets in it - let's say half inch wide, by 1 and a quarter long by quarter inch thick.

The armature is already 'decogged' since the laminates are skewed.

The 'can' could possibly be the old heater motor housing.

The blades would mount to the can.

But the output would probably be pretty small - it would be fun though!

I am currently testing a 1.5 hp induction motor conversion - and yesterday I just about broke a sweat carrying my new (free) Baldor 10 hp 4 pole 3 phase high efficiency motor up to my shop/office. Good thing it was in pieces - just the stator and housing without the rotor in it weighs 95 lb!

Ted.

[ Parent ]

Re: question for Ed, windstuffnow (3.00 / 0) (#6)
by Norm (peppysue@suite224.net) on Tue Feb 15th, 2005 at 09:10:35 PM MST
(User Info)

Ah...Yes! Something about great minds thinking
alike! LOL!
...and...10 HP...(free) Good Grief you got
some connections! You Lucky.....

On that little motor...it had a thick steel
band on the outside of the can?...needs that to
hold in the flux(but you knew that)
You might be surprised by the output for its
size if you rig it up right! The steel laminates
are the key...that's why these motors do so well
with just fairly weak ceramic mags. Look at the
F&P for instance!
I'd sure like to see you run this little project thru'
be nice pics and all that stuff!
Fun!
( :>) Norm.
( :>) Norm
[ Parent ]

Re: question for Ed, windstuffnow (3.00 / 0) (#3)
by windstuffnow (elenz(at)windstuffnow(dot)com) on Tue Feb 15th, 2005 at 04:53:16 PM MST
(User Info) http://www.windstuffnow.com/main

iFred,
I think Monte explained it better than I could. Remember there are 6 magnets on the disc. Each magnet or pole would be over the top of each leg. The way you have it diagramed you have a pole over each slot in which case there would be some canceling. I'm using the small 1" x .5" x 1/8" magnets with the kit which really doesn't take advantage of the potential. If you filled the disc with 6 triangular magnets you could increase its output by over 2 times.
Also, I put one together as a dual rotor and its quite impressive for the small wire it uses although the blades really need to be larger for low winds when this is done.

Lots of fun in any case!
Windstuff Ed

Have Fun! Windstuff Ed

Re: question for Ed, windstuffnow (3.00 / 0) (#5)
by iFred (ifred2006@yahoo.com) on Tue Feb 15th, 2005 at 08:01:03 PM MST
(User Info)

Thank you! I think i understand now, just never seen it done that way in a single loop with all the wire loop in one shot installed to make a pole. very cool ED, nice clean work! as allways, you inspire to think different!
Thanks again!

>> all energy used to produce this comment or post came from solar and wind energy! It works!

question for Ed, windstuffnow | 6 comments (6 topical, 0 editorial)

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