The Wind is Free!

Hi Guys I made a stator with nine coils but I am unsure as how to wire them in star. Most plans/ drawings I found on the net refer to six coils only. After testing my current config it is clear that I made a mistake somewhere. All coils were tested individually ...

... to know if the blades in my plans have a glimmer of hope :) To others who have sucessfully created PVC blades, please would you share some info on how you made them. I will gladly draw plans for them and post back to the forum.

... For the first stage I just want to run a fridge or something slighly heavier on juice like a few globes to test and setup the batteries and how they will work. But I have two a part question which I can't find the answer to, probably becuase I don't know the correct terms to search for. ...

... face of the magaliesberg, it seems like we have a fair amount of medium to slow wind. First Question if I may: Now for building a generator, how would using an induction motor fair as a wind turbine? Has anybody tried this, it produces 3 phase power and 220v approx 740w per 1 HP. ( that's ...

Try to makethe core of the blade 90 deg to the shaft 90deg.jpeg It is 90 degrees to the shaft I was told to try it at 9 degrees and see how it works. Also the turbine does not try to turn backwards it trys to turn at low wind speed and sort of reurns slightly but turns backwards like 2 or ...

It all depends on the blade size. With 1m blades, 800W should be attainable.

Windgat,
what would you rate your turbine on this site at? is this a question that can be answered?
I am in the JHB area and I am looking at wind vs sun

... ( they are quite expensive). 3 is the size of the magnet compared to the coils important, e.g should the magent be able to fit inside of the coil. How deep should the magnets be etc. Just so you know I alredy have a battery bank that I acquired from a electric pallet truck, 12 x 2volt cells wired ...

... with this site. Could someone please point me in the right direction... I would like to build your design but I am unsure about: Magnets? how do you decide what to use? Coils? How do you decide? How do I find out our wind speed? How many rpm's will this wind speed achieve? How much volts,amps, ...

That is a mean looking monster! How heavy is it? I would say the weight would mean a very strong structure is needed to support it, and its not for the first timer! Repairing the coils would not be easier - I guess it would mean rebuilding the stator completely.

I looked at the stator pictures but do not understand how the coils are held away from the bottom
of the mould in order to pour resin .I see the small container pouring into the centre of the coil.
What "resin" shall I ask for at the hardware shop?

windgat wrote: so once someone knows what they want, I get a final quote including shipping.

I am definately interested in the wedge shape magnets in the picture above and request a final quote for 32 in total.
How long will it take your importer to respond?

... to put a 6V fan on and see what current is drawn. Of course a fan is very low power. Maybe rather get a flat battery (6V is your case) and see how much current goes into that. You should be able to post an attachment here - look for 'upload attachment' below your message box.

Can't tell how big it is!

... really N36? Or if that is the same grading that is used for rare earths. Are you rectifying? And have you connected up all three phases? If so, how?

... are graphs on the 'benchtesting' page of the main website you might find useful. I have always used 1 strand per coil... I guess it depends on how you connect the strands to each other once the coils are wound. In series would give you more voltage at lower rpm. In parallel makes it the same ...

Anybody has ideas on how to convert squirrel cage motors to generators???? IMO, not feasible. A "squirel" cage motor has a squirel cage rotor, which are shorted loops of copper bar (wire?) These loops line themselves up to ...

... 3 blades will be 3 inches by 24 inches. The neo magnets will be 2x 1 x 1/2 on a 10 inch metal disk with 12 on each disk and nine coils in between. How many turns would I need with a #22 gauge wire for a 12 volt applicationand can I use 2, 3, or 4 strands per coil?

... dump load unit from usa to the 24 volt turbine as you sugested and it works like a dream. Thank you for the info on your 24 volt dump unit but how do i get the funds to you let me know your shops phone number and i can get the info and transfer. Please send me a drawing on what to connect where,i ...

... At the moment my renewable energy is as follows: 24 x 600AH lead acid batteries 2kw of solar cells 6 KVA 48Volt inverter Anybody has ideas on how to convert squirrel cage motors to generators????

Looks good - I look forward to hearing how much power you get!

... is what you design to be in phase. Take this thickness into account, to ensure you can fit the coils in the available space - Its also important how you connect the coils of course. Every third one, to give 4 coils per phase looks right.

OK, so I`ve read up on magnets on the internet since my last post and now know a bit more.
Found a lot of manufacturers who are willing to supply quotes on wedge-shape magnets.
How far apart should one place these magnets from each other on the same rotor?

Thanx Windgat

Just one, obvious stupid, question: who is Nico and how do I get in touch with him?

Welcome! I use 1mm wire, and have seen over 20amps from a 3-phase stator. I have been tempted to use 1.2mm. Its mainly about how much can you fit in. A teardrop sounds right - thats like a wedge shape, which is what I use. The more turns per coil, the higher the voltage at a given RPM. ...