Normally, you need to know the available current or use teh impedance and kva rating to determine it. If you have been given the avail current to start with, you probably have all you need.I know the avalible fault curent at the transformer. however i do not know the impedence or the kva.
Are you referring to the "Short-Circuit Point-to-Point Calculations Book"?Originally posted by sceepe:
Mike Holt has a great download available on his "free stuff" page that explains the whole proceedure of doing point to point fault current calcs. check out Mike Holts Free Stuff