SolarSavage
Member
- Location
- Sacramento, CA
Hello Gents,
I am designing a commercial system which is 3 phase and it will tie into a single phase panel. Needless to say I need a step down transformer which is fine.
I am however having a hard time with the arc fault calculations. I am at the AC disco to Transformer portion and my available fault current @ fault is 6955 Amps. I cant seem to find the formula to source the transformer working backwards from 240(single phase) to 480(three phase).
Is there a formula in which I can take my current AFC @ Fault (6,955A) and convert it into three phase fault current?
I am designing a commercial system which is 3 phase and it will tie into a single phase panel. Needless to say I need a step down transformer which is fine.
I am however having a hard time with the arc fault calculations. I am at the AC disco to Transformer portion and my available fault current @ fault is 6955 Amps. I cant seem to find the formula to source the transformer working backwards from 240(single phase) to 480(three phase).
Is there a formula in which I can take my current AFC @ Fault (6,955A) and convert it into three phase fault current?