Sizing of Transformer for Single Phase and Three Phase loads

A cabinet that used 2320 VA at 120 volts is using 2320/120= 19.333Amps

A cabinet that used 13140 VA at 220 volts is using 13140/220= 59.72 Amps

Your transformer may have a couple of 120 volt outputs making your combination 240 volts instead of 220.

Generally the VA rating of your transformer is the sum of your loads expressed in VA terms and added together. To provide sufficient power (VA) for inrush current when devices are first powered up, a safety factor of 30-50% is not uncommon. Just multiply your total load times 1.3 or 1.5 and that is the rating of your transformer.

At full load you want to have a little reserve left in the power distribution equipment. Don't pick or run a transformer at rated load. They get hot and you have to replace it more often.