Stepper turbine

[Turfdr]

I finally got the stator rewound and managed to get 25 turns of #18 on each coil.

Tested it on the lathe at a couple different rpms and it did raise the voltage from

7.3v 16.4a @ 320 rpm with the factory stator to 12.3v 8.8a @320 rpm.

But when I shorted it to test amps, it really dragged it down !!

I don't remember the stock stator having so much resistance at this rpm.

I wonder if I wound it right or maybe the higher voltage causes this?

I checked for shorts,opens and grounds and and found none.

I'll have to find a battery I can bring down to the shop and see how it performs .

Anyway ,a few days ago I got antsy to see how the rest of the machine would hold up.

So I mounted a stepper with a 3 blade rotor and put it on a 12' 4x4 post strapped to  

a forklift.I'm guessing the winds where about 20-25 mph and it did pretty good.

It tracked very smooth and put out 3 amps into 12v battery.

It was also very quiet except for wining of the motor and when the wind shifted suddenly .    

[wooferhound]

I Boggs down when you short it out huh ?

Sounds like you made a really efficient wind generator there. It is operating properly as the more power you try to take from the genny, the more drag you will have. So shorting the genny will make your genny put out it's maximum power and will make it drag down the most. You can be assured that your genny will stop when you short it out in high winds.