Guru
Joined: 13/10/2014
Location: AustraliaPosts: 1860
| Posted: 09:36am 09 Jan 2023 |
Playing around with the Toriod from the Aerosharp. This will be my test Toriod during the build. The outer winding removed leaving a 230V winding and a screen, might remove the screen and add a few turns to bring it up to 250 or 260v if needed.
Wound a single primary of 8awg 7.5mm2 (56A rated) Core is 0.98v per turn and I wound 27 turns, using my big old VARIAC I got 26.4vac @ 220V, could wind a second but one winding is enough for testing and also for the lower power 230Vac winding. Just wondering if I should drop that to 25V? Although my LiFePO4 battery bank will likely never go below 50V.
Quick test for about 30 seconds pulling 50A @ 25.3v into big dual 300mm x 70mm power resistor load (toaster element on steroids), obviously not enough to heat anything but the load.
There was a Cap supplied with the China inverter, using that, I have a very noticeable resonance peak at 76Hz with the 4uf Cap, close enough for me.
The parts for the inverter I'm building, one of Wiseguys designs, are coming in surprisingly fast from China and other locations, some parts were down to the last few left with many sites showing NO stock
I think I got in just in time.Just for laughs a picture, I know it's not much, but for me at this moment in time it's a start, and another small step, just got to keep taking those small steps.
