Enter the transformer kVA, secondary voltage, and % impedance to calculate the available secondary fault current.
Rex Power Magnetics makes no representations as to the accuracy of the information used by or generated by this calculator. This calculator uses the infinite-source method and does not account for primary-side source impedance, conductor impedance, or motor contribution; actual fault current may differ. The results are provided for general reference only and should be independently verified by a qualified professional before being relied upon. Rex Power Magnetics assumes no responsibility for the results generated by the calculator or for any errors or omissions in connection with its use, and under no circumstances shall Rex Power Magnetics be held liable for any damages arising from the use of, or results generated by, the calculator.