Here you have the possibility to calculate the cos φ, the active power, and the apparent power
of e.g.,three-phase motors.
cos φ = P / S
For Example:
A 4.0 kW three-phase motor (or 400V electric motor) has a cos phi of 0.85.
What apparent power results from these specifications?
cos φ = P / S
S = P / cos φ
S = 4.0kW / 0.85
S = 4.706 kVA
Measuring Units:
Active power P = Kilowatt [kW]
Apparent power S = Kilovolt ampere [KVA]
cos φ = no measuring unit