... (voltage, current, power, impedance, torque, etc.) the per unit value is the value related to a base quantity.Generally the following two base values are chosen:The base power = nominal power of the ... current:Resistive 1%, Inductive 1% The base values for each single-phase transformer are first calculated:For winding 1:Base power 300 kVA/3 = 100e3 VA/ phaseBase voltage 25 kV/sqrt(3) = 14434 ... each having a different nominal voltage, the same base power is used for allwindings (nominal power of the transformer). However, according to the above definitions, there are as many base valuesas...