28A*3phases = 84A.
TeslaFi tells me on my 3*16A the same calculation.
I think this is viable. I also think that your cabling may be a bit weak and you loose a lot of power with those 32A currents with heating the cables.
What does it tell, if you just try to charge at 16A instead of 32A? might worth a try.
have you looked into the graph of a charging session if something weird is going on?
TeslaFi tells me on my 3*16A the same calculation.
I think this is viable. I also think that your cabling may be a bit weak and you loose a lot of power with those 32A currents with heating the cables.
What does it tell, if you just try to charge at 16A instead of 32A? might worth a try.
have you looked into the graph of a charging session if something weird is going on?