Scoop789
Member
- Location
- Los Angeles
I'm installing 4 pieces of equipment rated at 7.2Kw each and operate at 208 or 240 single phase. I have to install a new transformer fed from the 480/277 panel to supply a new sub-panel to feed the equipment.
The manufacturer is telling me that a 30Kva transformer is good as the total is only 28.8Kw but when you divide 7200 by 208 you get 34.6Amps x 4 = 138.4 Amps. Looking at my transformer calculator this would call for a 75Kva transformer.
Any help on what I'm missing is appreciated.
Thanks.
The manufacturer is telling me that a 30Kva transformer is good as the total is only 28.8Kw but when you divide 7200 by 208 you get 34.6Amps x 4 = 138.4 Amps. Looking at my transformer calculator this would call for a 75Kva transformer.
Any help on what I'm missing is appreciated.
Thanks.