Tower is triangle shape using one inch pipe Sch. 40 each corner. IT is 50 foot high with the section of 4 inch pipe on top.
Side view of spring that was added to hyd. cylinder to help furl return.
Back view showing the spring loaded cylinders on each side of the main shaft, that provide a sort of shock absorber when the furl comes back to a horz position, and comes to rest on the stop support.
This shows the terminal connections for star and delta.
View from top of tower overlooking the Mississippi river.
This turbine is of 16 mags, each rotor, and 12 coils with a air space of 3/4 inch.
The coils are made from #15 wire with 60 turns two in hand. all this can be seen in my previous posts.
So far, I have tested in 12 volt and 24 volt. In 12 volt, it stalls at + or - 40 RPM.with a output of between 2 and 7 amps. It is almost continuous 24/7 even if there seems to be no wind at all. I have watch it in 30 mile an hour winds, and still it stays in stall. Being I am not off grid, and only use the power for some things in the house and for back up, Im very impressed, and even tho I wired it for 48 volt, Im thinking about up grading my 12 volt bank to high amp hour batterys and keep it 12 volt. No worry about overspeeding, no furling, no ware and tear on the blades. I have watched it now for 4 weeks and have only saw it not put out amps once.Most of our winds are 5 to 10 miles an hour. I like the way it just chugs along at 40 Rpm and puts out power 98% of the time.
In 24 volt in 30 MPH winds, it very quickly buried the needle on my 50 amp gauge, and did have quite a bit of flexing on the blades. It did start to furl,just as I shorted it out cause it was flexing very close to the tower. I have since adjusted the turbine up a little to gain clearance.
I do not know at this time if high winds will overcome the stall in 12 volts, which would probley put it in trouble due to being so powerful.
I plan on building another one this winter, that will do the same thing in 48 volts, which of course would mean alot bigger coils, and maybe bigger mags. At this time, I am thinking 20 inch rotors and 22 foot blades. Im kind of waiting to see how dans big one checks out.
Great fun, Harrie