# PFC Fault Current Calculator #### Fault Current Calculator

A PFC Fault Current Calculator

✔ Calculate PFC
✔ Calculate Zs / Ze
✔ Calculate Voltage

### Screenshots

• • • • ### Description

PFC Fault Current Calculator for calculating PFC kA from the other two known values, Voltage and Zs or Ze.

#### Calculate PFC

Calculate PFC from Ze or Zs.

• Enter a Voltage Value
• Enter a Zs or Ze Value
• Tap Calculate

#### Calculate Zs

Calculate Zs from PFC.

• Enter a PFC kA Value
• Enter a Voltage Value
• Tap Calculate

#### Calculate Voltage

Calculate Voltage from PFC.

• Enter a PFC kA Value
• Enter a Ze or Zs Value
• Tap Calculate

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### FAQ's & How to

#### How to calculate PFC

To calculate PFC

• Enter a Uo Voltage value.
• Enter a Ze or Zs value.
• Tap Calculate.

Uo = Line to Earth Voltage

Zs = Circuit Earth Fault Loop Impedance

Ze = External Earth Fault Loop Impedance

#### How to calculate fault current

To calculate fault current we need to know the two other required parameters.

1. Earth Fault Loop Impedance (Zs or Ze)
2. Voltage

The PFC calculation formula is:

• PFC = Voltage ÷ Zs (or Ze)

For example, if the voltage = 230 and Zs = 0.35 then,

230 (V) ÷ 0.35 (Zs) = 657 Amps x 1000 = 0.657 PFC kA #### Get the app

An easy to use PFC Fault Current Calculator

Enter ANY two values to calculate the third
✔ Calculate PFC kA
✔ Calculate Zs or Ze
✔ Calculate Voltage