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Generators & Electric Motors General Discussion Antique Generators and Old Electric Motors: Questions and answers about restoring and showing old power generation systems.

Generators & Electric Motors General Discussion

DIY Wind Turbines


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  #1  
Old 07-27-2019, 11:06:11 PM
Railroads Railroads is offline
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Default DIY Wind Turbines

I'm putting these up for those who want to get their feet wet in building a wind generator on the cheap using common materials. The topic of building a wind generator is a very complex beast and indeed, there are sites like the Field Lines forum and the Backshed that cover the subject in depth and to the point of getting very scientific in their endeavors.

Most of this info is a bit dated now. But still very relevant today. There is lord knows how many motor cars and lorries on the roads all around the world. These vehicles contain a good quantity of parts to build a wind generator. The ITDG group has worked on numerous projects around the world to bring light and power, as well as running water to third world countries. I really like what they do, and have to give them credit for making their documents available on the web.

http://library.uniteddiversity.coop/...generation.pdf

http://cedecap.org.pe/uploads/biblioteca/37bib_arch.pdf

https://www.scoraigwind.com/download/Bookletwind.pdf

http://cedecap.org.pe/uploads/biblioteca/38bib_arch.pdf

https://scoraigwind.com/SEIpics/brake.htm

https://scoraigwind.com/pirate%20old...ill%201998.pdf

https://scoraigwind.com/brakeupdate/index.htm

https://www.fieldlines.com/index.php?topic=143518.0

https://www.otherpower.com/wardalt.html

https://scoraigwind.com/download/windrotord.pdf

https://scoraigwind.com/pirate%20old...ber%202002.pdf

https://scoraigwind.com/pirate%20old...May%202003.pdf

https://www.pssurvival.com/PS/Windmi...rator_2004.pdf

It's come to my attention that a good source for coils for one of these generators would be the 120v winding from old microwave oven transformers. Each transformer has a coil of about 89 to 90 turns of 14 AWG aluminum wire. The cores being welded together does require some creative efforts to separate them to recover these coils for re-use. The ally wire is a bit of a pita though, the only way to get a solid connection is to crimp the wires together using aluminum crimps like those used to make guy wires and the like.

Original inspiration to re-use these microwave coils. The method of building the iron stator is probably one of the best I've seen for one of these types of wind generators. http://www.windstuffnow.com/main/mic..._generator.htm

Detailed explanation on the car alternator rectifiers.

https://www.thebackshed.com/Windmill...rnatorRect.asp

https://www.thebackshed.com/Windmill...Rectifiers.asp

By far, The easiest to use alternator rectifier is the type used by the Delco Remy 10,12,15,17,27si models. The rectifier from the 27si are physically the largest with the higher amperage diodes.

Robert
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Old 07-27-2019, 11:17:35 PM
dalmatiangirl61 dalmatiangirl61 is offline
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Default Re: DIY Wind Turbines

In my humble opinion, after decades of wanting to build a serious wind turbine, the best/easiest generator is a Fanuc servo motor. Robust housing, robust bearings, permanent magnet, 3 phase, 8 pole, AC motor. I hoard these things, the biggest baddest one I have will produce 180 amps per leg

Just need a 30 ft diameter prop and a serious tower to mount it to, or a property with a good running river
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Old 07-27-2019, 11:36:11 PM
Railroads Railroads is offline
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Default Re: DIY Wind Turbines

They sound like the perfect solution for a serious wind turbine. But they would need a tower like the Jacobs wind turbines had. Very high up in the air to develop the required torq to turn your motor.

Robert
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Old 07-27-2019, 11:53:58 PM
dalmatiangirl61 dalmatiangirl61 is offline
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Default Re: DIY Wind Turbines

They come in many sizes, I have a few small enough to pickup with one hand that only produce 8-10 amps per leg, a bunch that do 20 amps per leg, and the badboy that weighs a couple hundred pounds, yeah it needs serious tower and prop, or hydro.

All found as scrap and bought cheap, note many have an internal brake, takes some work to crack them open and remove the brake, but it takes lots of weight off and there is a demand for the brakes so you can get your $ back from the purchase of motor.
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