Guru
Joined: 21/06/2018
Location: AustraliaPosts: 1206
| Posted: 01:12am 17 Jul 2024 |
edit: About 6 reply posts since I started this post.... peak hour :)
I certainly have a lot of these distractions too, I also wondered at just reducing the mains to say 200V, the Nano could do this by changing the (2.8V?) target setting lower, when it has had say some minutes of <300W for instance, so alarm clocks and phone chargers etc can all still keep time and function as normal but if the 300W low limit or whatever limit you choose is exceeded the Nano could immediately go back to normal 230/240Voperation, for when the fridge wants to start.
The reason for identical transformers in the 12KW unit is for dividing the power as equally as possible so they each transform ~6KW. However to extend on Mabs suggestion, if you use the smaller Power board with only 8 FETs such as the Variac power board (plug and play compatible) with a smaller power toroid and combine it with the 16 FET unit with a much bigger toroid for the heavy lifting. That way the smaller power section may be 1-2KW and the other one 3 - 6 KW and with the concept of also being able to reduce the AC voltage by 10 - 40V when it just has idling loads would give the lowest consumption I think can be achieved for this setup.
My advice for Cpocs query about more temperature sensors is to use the 2 on board sensors, say one for each heatsink (which usually run only a few degrees above ambient) and maybe have another dedicated sensor board for the toroid temperatures and toroid fans. This could be easily coupled to the inverter to pause the inverter for excessive temperature/s until they drop to an acceptable level with an Auto restart after.
Edited 2024-07-17 11:18 by wiseguy