Guru
Joined: 15/07/2006
Location: AustraliaPosts: 676
| Posted: 01:02am 14 Aug 2012 |
The first magnet plate had to have a spacer to hold it back from the bearing nut, on the F&P spline, and a spacer (pipe) over the rest of the spline so the nut on the thread could hold the magnet plate on tight.
Extra fibreglass was added around the outside of the stator for bolting it on. The stator then had to have a little ground of the outside edge to fit the covers on.
Needed a spanner not affected by the magnetic field, so made an aluminium one. The jacking bolts used for the 2nd magnet plate were cut at 220mm long, but could have been 150m long.
After assembly, tested one coil, 4vac at approx 60rpm. Approx 120rpm was 7.5-8vac. Then wired 2 coils in series which doubled the voltage. Wired all coils up, 3 phase, 2 coils in series, star. Rectified and tested, approx 190-200rpm at 50vdc, which should be something near the cut in rpm.
All finished off / assembled for some pictures.
Then dismantle for assembly on the pole and raising in the air. Marcy brings the parts as needed and passes them up. Then drives the loader for me. Driving is no big deal, she grew up on this farm. A light breeze blowing produced a couple of amps up to 5A. At 5A the original AXFX cut in and did a few amps. So the little beauty is a bit in front of the original one. It will be interesting to see how they compare in higher wind.
Trev @ drivebynature.com