Scratch Built Wind Generator Part #5 (Posted Feb 11/06)

The latest is at the link below...
http://www.theworkshop.ca/energy/hdgen/5/hdgen5.htm
FrankG www.theworkshop.ca frank@theworkshop.ca

I am not sure exactly what you did but the ferrous components do not look very focused to concentrate the flux into the windings.
Some things to maybe try: - make sure you iron mixture doesn't permeate the windings so that magnetic flux can go on both sides of individual turns of copper. - form "return poles" or iron poles between your coils so that you effectively double the number of poles on your winding half. As the magnets pass over the dummy poles they force the magnetic polarity to reverse through the windings. - examine how many poles you have in series for more or less voltage summation and recheck all polarities so that none are in subtractive mode. This may be further proven with an oscilloscope to verify even waveforms if you have access to one.
You may have already tried some of this.
BTW: when motors are wound or rewound a form is created and the winding done on it. Then the completed coils are loosely taped and formed into place on the prefabricated iron armatures. A "fishpaper", Hytex, or piece of insulation quality paper is formed into a U channel and inserted into the bottom of the lamination trough first to protect the copper's insulation against the sharp lamination edges. This is done by working turns of copper gently beteen the cracks and soft hammering the bunch into place to avoid any loose wires sticking up.
Another piece of insulation paper is then slid into the top of the "turns trough" to protect the windings from flying parts and working loose.
Now the whole thing is heated and dipped into varnish or another insulting medium to seal the whole unit together.
Bad windings can be found with a "Growler". This can be done by winding another coil on a piece of iron and exciting it with an AC current. Place this near or against each core and see what voltage it induces on an AC voltmeter. If an open coil is incurred the voltmeter will produce very little. If a short circuit is encountered in a coil the "growler" will vibrate making a growling sound and heating will occur. Very little voltage may also be seen in this instance also.
I hope any of this may have help in some way. If I wasn't so lazy (I'll say busy) I would be right there doing it too.
Best of luck.
"FrankG" wrote in message

The latest is at the link below...
http://www.theworkshop.ca/energy/hdgen/5/hdgen5.htm
FrankG www.theworkshop.ca frank@theworkshop.ca

"FrankG" wrote in message

The latest is at the link below...
http://www.theworkshop.ca/energy/hdgen/5/hdgen5.htm

I sure hope you get this thing off the ground, so to speak. What kw are you thinking you will get from it?

FrankG www.theworkshop.ca frank@theworkshop.ca

Your voltage magnitude will be proportional to the number of turns and the lines of flux you cut per time. In other words the speed of change of the magnetic strength. If you have a very close magnet to a very pointed or sharp edged coil pole iron and it sharply moves off the edge you will get a higher spike of voltage than if you move it slowly away or the same speed from a slowly widening gap. The snap on and snap off thing. This aproximates more speed of turning or cuts more lines of force per second.
For lines of force think of the old magnet under the paper and when black sand is shaken onto the paper the pattern it makes. The more of those lines you cut through per second the more strength of pulse you will get from your coil. This is what the iron in the pole helps with...focusing the magnetic lines of force or flux density. Change rate is the next benefit of the "focus"
Best of luck. Keep trying.

"FrankG" wrote in message

Johnny/Solar Flare,
This is largely just a "Proof-of-Concept" project, but the end-goal is to fly 3 to 4 units each producing 500W (by next year), which is not that unrealistic once I work out all the basics...
Solar Flare, I like the idea of the "Growler" and will have to try that ... it sounds like a split transformer, where the test coil is acts as the secondary...
I was unsure about your description on the opposing pole or focussed Flux idea, I'll re-read it to see if I can "Get-it"...
After much consideration and review of reply's from the "Otherpower.Com" Forum... I have to admit that as I have the Rotor currently arranged, I'll never get the kind of power I'm after out of this unit (approx 100W)...
The proper Mag/Coil arrangement appears to be Pole - Space - Pole ... arranged N - S - N ... with the coil leg width being equal to the "Space" between magnetic poles, the coil center or core equal to the width of the pole, and the coil height equal to the Pole Height...
This is the tried and true method that many others have had success with... I was trying to avoid cutting the Magnets in half to seperate the poles... and in the process conclusively proven that they DO Have to be seperated.
FrankG www.theworkshop.ca frank@theworkshop.ca
"Johnny" wrote in message
"FrankG" wrote in message The latest is at the link below...
http://www.theworkshop.ca/energy/hdgen/5/hdgen5.htm
I sure hope you get this thing off the ground, so to speak. What kw are you thinking you will get from it?
FrankG www.theworkshop.ca frank@theworkshop.ca

Johnny/Solar Flare,
This is largely just a "Proof-of-Concept" project, but the end-goal is to fly 3 to 4 units each producing 500W (by next year), which is not that unrealistic once I work out all the basics...
Solar Flare, I like the idea of the "Growler" and will have to try that ... it sounds like a split transformer, where the test coil is acts as the secondary...
I was unsure about your description on the opposing pole or focussed Flux idea, I'll re-read it to see if I can "Get-it"...
After much consideration and review of reply's from the "Otherpower.Com" Forum... I have to admit that as I have the Rotor currently arranged, I'll never get the kind of power I'm after out of this unit (approx 100W)...
The proper Mag/Coil arrangement appears to be Pole - Space - Pole ... arranged N - S - N ... with the coil leg width being equal to the "Space" between magnetic poles, the coil center or core equal to the width of the pole, and the coil height equal to the Pole Height...
This is the tried and true method that many others have had success with... I was trying to avoid cutting the Magnets in half to seperate the poles... and in the process conclusively proven that they DO Have to be seperated.
FrankG www.theworkshop.ca frank@theworkshop.ca
"Johnny" wrote in message

"FrankG" wrote in message The latest is at the link below...
http://www.theworkshop.ca/energy/hdgen/5/hdgen5.htm
I sure hope you get this thing off the ground, so to speak. What kw are you thinking you will get from it?
FrankG www.theworkshop.ca frank@theworkshop.ca

"FrankG" wrote in message

Johnny/Solar Flare,
This is largely just a "Proof-of-Concept" project, but the end-goal is to fly 3 to 4 units each producing 500W (by next year), which is not that unrealistic once I work out all the basics...

You got enough component sources? Just wondering if you had improvements in your supply line if it would aid you in your project any.

Solar Flare, I like the idea of the "Growler" and will have to try that ... it sounds like a split transformer, where the test coil is acts as the secondary...
I was unsure about your description on the opposing pole or focussed Flux idea, I'll re-read it to see if I can "Get-it"...
After much consideration and review of reply's from the "Otherpower.Com" Forum... I have to admit that as I have the Rotor currently arranged, I'll never get the kind of power I'm after out of this unit (approx 100W)...
The proper Mag/Coil arrangement appears to be Pole - Space - Pole ... arranged N - S - N ... with the coil leg width being equal to the "Space" between magnetic poles, the coil center or core equal to the width of the pole, and the coil height equal to the Pole Height...
This is the tried and true method that many others have had success with... I was trying to avoid cutting the Magnets in half to seperate the poles... and in the process conclusively proven that they DO Have to be seperated.
FrankG www.theworkshop.ca frank@theworkshop.ca
"Johnny" wrote in message
"FrankG" wrote in message The latest is at the link below...
http://www.theworkshop.ca/energy/hdgen/5/hdgen5.htm
I sure hope you get this thing off the ground, so to speak. What kw are you thinking you will get from it?
FrankG www.theworkshop.ca frank@theworkshop.ca

I was trying to avoid cutting the Magnets in half to seperate the poles... and in the process conclusively proven that they DO Have to be seperated.
i'm not sure what you are trying to say here.....

cutting a magnet in half won't give you two magnets one north and and south , you'll just have two smaller magnets each with a N and a S am i missing something?

If you are cutting those hard drive magnets that have n and s on the same face at each end, then yes, you will have two different magnets, each with a n on one face and a s on the other face.
Some of those HD magnets (usually the two iece ones are just a single magnet with the ploes on the faces.
DS
stu wrote:

I was trying to avoid cutting the Magnets in half to seperate the poles... and in the process conclusively proven that they DO Have to be seperated.
i'm not sure what you are trying to say here..... cutting a magnet in half won't give you two magnets one north and and south , you'll just have two smaller magnets each with a N and a S am i missing something?

How do you mean???
I'm always grateful for anything that comes my way, though at the present Time is what is in shortest supply...
FrankG www.theworkshop.ca frank@theworkshop.ca
"Johnny" wrote in message

"FrankG" wrote in message Johnny/Solar Flare,
This is largely just a "Proof-of-Concept" project, but the end-goal is to fly 3 to 4 units each producing 500W (by next year), which is not that unrealistic once I work out all the basics...
You got enough component sources? Just wondering if you had improvements in your supply line if it would aid you in your project any.
Solar Flare, I like the idea of the "Growler" and will have to try that ... it sounds like a split transformer, where the test coil is acts as the secondary...
I was unsure about your description on the opposing pole or focussed Flux idea, I'll re-read it to see if I can "Get-it"...
After much consideration and review of reply's from the "Otherpower.Com" Forum... I have to admit that as I have the Rotor currently arranged, I'll never get the kind of power I'm after out of this unit (approx 100W)...
The proper Mag/Coil arrangement appears to be Pole - Space - Pole ... arranged N - S - N ... with the coil leg width being equal to the "Space" between magnetic poles, the coil center or core equal to the width of the pole, and the coil height equal to the Pole Height...
This is the tried and true method that many others have had success with... I was trying to avoid cutting the Magnets in half to seperate the poles... and in the process conclusively proven that they DO Have to be seperated.
FrankG www.theworkshop.ca frank@theworkshop.ca
"Johnny" wrote in message
"FrankG" wrote in message The latest is at the link below...
http://www.theworkshop.ca/energy/hdgen/5/hdgen5.htm
I sure hope you get this thing off the ground, so to speak. What kw are you thinking you will get from it?
FrankG www.theworkshop.ca frank@theworkshop.ca

Are stereo speaker magnets good for your purposes?

Hey Johnny,
No unfortunately Speaker Mags are typically weaker than the "Rare-Earth" types found in HD's...
FrankG www.theworkshop.ca
"Johnny" wrote in message

Are stereo speaker magnets good for your purposes?

"FrankG" wrote in message

Hey Johnny,
No unfortunately Speaker Mags are typically weaker than the "Rare-Earth" types found in HD's...
FrankG www.theworkshop.ca

Ok. Just wondered as many speaker magnets as there are. Some of them are rather large and their strength seems pretty good. Maybe they could be melted down or something and reformed into stronger magnets.

"Johnny" wrote in message Are stereo speaker magnets good for your purposes?