"This is my first post I have access to several Dc motors and I am wondering if they are ok for making a wind generator?
The motors are
- /3 hp
- rpm
- vdc
- 6 amps"
A good start would be to spin one with a drill (or something) and find out how many volts/rpm you get. No matter what though - it's only rated 3.6 amps, so you're probably looking at a small (maybe 4' diameter) 50 Watt wind turbine (you may see peaks of twice that). Im just giving my best guess and could be off - but they may be OK for a small 12V machine. Also - do they cog? If the motors cog then that will likely hurt you in low winds.
"I have played with it in the wind so far I am using the 4.5 foot Pvc pipe blades (6)
I got 10.2 volts out of it with no load on it."
You don't say how much wind...
I'm not personally very optimistic about PVC blades. People seem to like them because they are easy to make, but I've not in years heard any real success stories. I expect at best they work a bit, but far from ideal - I also doubt they'd hold up for long. That's beside the point though since you've allready made them... You probably need to get the speed up. You might try 3 blades instead of 6.
"My plan is to setup several of these but I am not sure how to do the connections.
and exactly what I need."
Hard to say. If you're talking about a serious project/lots of machines and a usable system I would consider getting away from the DC motors and PVC blades and build a single larger machine. 1 good 8' diameter machine will generate more power than 4 good 4' machines!
If you're spending much time at this stuff you should consider getting a copy of 'windpower workshop' by Hugh Piggott. Unfortunately it seems to be unavailable at this time, but there should be a new batch printed up soon.
