Fault Current Calculation Spreadsheet

Calculate fault current

This MS Excel Spreadsheet represents an easy way to calculate fault current by entering few values in indicated fields. You will find sheet with very nice example already fulfilled. Before starting fault current calculation, you will have to choose between Step 1a and Step 1b which are explained below.

Step 1a

Insert available fault current ampere rating from your local Utility

Step 1b

Insert the the kVA rating power factor (PF) and impedance  (Z) of the transformer is not required to continue. Note: When you insert the kVA rating  power factor and impedance you must select the voltage from the dropdown box Select Voltage & Phase before the value will be calculated.