Per-Unit System Calculator

Calculate per-unit base values and convert actual quantities to per-unit for power system analysis.

System base power. Common: 100 MVA.
MVA
Nominal system voltage (line-to-line).
kV
Actual power to convert.
MVA
Actual measured voltage.
kV
Actual impedance to convert (0 if N/A).
Ω

Results

Base Current-A
Base Impedance-Ω
Power (per unit)-pu
Voltage (per unit)-pu
Impedance (per unit)-pu
References: Glover — Power Systems Analysis; IEEE standards