Guru
Joined: 22/02/2006
Location: AustraliaPosts: 2296
| Posted: 04:21am 12 Apr 2026 |
Ok this time I put the clamp meter close to the negative battery terminal, turned on the toaster oven and one element.
Now 23.51 x 101.2 = 2379.2
The energy meter 2372.3 so that a lot better, now the AC voltage was 235 volts and I did notice turning on a 2nd element caused the voltage to drop to 215 volts.
Also while I was doing this test I did feel all the cables and no heat was felt.
Now with the primary it was 14 turns and with one turn taken off the regulation was much better, now with these resistive loads going above 3Kw does cause the voltage to drop off so maybe taking one more turn out so 12 turns may be a better match.
This would mean I will need to rewind the primary so the output cables are close to equal then I could bury the temp sensor better to get a true TOR reading as I did notice the toroid was warm to the touch this morning.
Edited 2026-04-12 14:37 by Bryan1