Welcome! This calculator allows you to calculate the generator fault current given a generator power rating, rated voltage, and impedance in base percentage.
Fault currents can occur in a circuit due for several reasons. Knowing this value can provide valuable information for rectifying and diagnosing problems in a circuit. As well as helping you to make appropriate design choices for electrical components.


⬇️ Inputs



Z (%)

⬆️ Outputs


💬 We'd love your feedback on this template! It takes 1min


Fault currents occur as a result of low-impedance short circuits. As a generator is an electrical machine, it can occur when a short to ground is created, phases are crossed or other similar scenarios. The magnitude of the generator fault current depends on several technical specifications.


Additional Resources

To calculate the total power in a circuit and the specific reactance of an inductor or capacitor, check out our other calculators!
  1. 🔗 Power (DC Circuits)
  2. 🔗 Inductor Reactance
  3. 🔗 Capacitor Reactance