Wind Turbine Finished

Today we finished the wind turbine. Well mostly finished. Still have some painting and greasing before it goes up the tower. We spun the rotor and were producing voltage with our hand wound 3 phase coils, and grade 50 magnets. It starts up at 5mph, and is charging at 7mph (150 rpm) and up. Maximum output should be around 1000 to 1200 watts at 25 to 30 mph winds. The rpm of the alternator should be around 600 or so. It's a permanent magnet ac alternator with a stationary coil, so no slip rings or brushes necessary. Totally water proof design. Photo's of the build can be found in our photo album.