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So dry type transformers seem to generally be oversized for the application due to the reduced cooling ability. So in theory how much of a gain would there be taking a small dry type, putting in oil? Would the saturation point be the limit rather than the temperature alone? Would it not do...

So. When bonding an aluminum PV rack, wouldnt Al wire be preferable to copper in that there would be less dissimilar metals in contact? Codes seem to say #6 copper, which seems silly on an aluminum rack. Are most rack lugs stainless, or an aluminum alloy that prevents corrosion, or should...

I got a deal on a 3000W honda clone inverter gen with blown inverter. Testing off the HV DC plug going into the inverter board gives 220vDC at idle (ECO on) and 240cDC with ECO mode off. I was thinking of just running off that (the diode bridge output) into a high voltage input charge...