I've been searching EVERYWHERE for a simple formula to calculate 2 unbalanced loads on a 3 phase line. This is an issue when calculating FLA on machines. i.e. If I have 3 230vac, 2300watt single phase heaters across the three phases, no problem. P/E * 1.732. If only two heaters of equal wattage...
Working on a 575VAC machine line. A couple of the machines have several 230VAC loads. Using step down transformers and am uncertain of the implications, as I usually just build the machines and don't have to worry about electrical service. Current plan - 1 Customer supplies disconnect. 2 - Run...