ELECTRICAL / CALCULATOR
Three-Phase Current
Estimate balanced three-phase operating current from line voltage and power.
Input Parameters
Edit the example values. Results update as you type.
Enter a decimal greater than 0 and no greater than 1.
Enter 1 when the input is electrical active power.
Results
- RMS Operating Current
- 17.875A
- Active Input Power
- 10kW
Formula
I = P / (√3 × U × cosφ × η)Substitution
I = 10,000 / (√3 × 380 × 0.85 × 1) = 17.875 ACalculation Steps
- Convert input power to 10,000 W.
- Use efficiency to obtain electrical input power, then divide by √3, line voltage and power factor.
Result Explanation
The calculation assumes a balanced three-phase load and line-to-line RMS voltage.Use efficiency 1 when electrical input power is known.
Continue to Component Selection
Formulas and FAQ
I = P / (√3 × U × cosφ × η)Should I enter line voltage or phase voltage?
Enter line-to-line RMS voltage. For a 380/220 V system, enter 380 V.