Here you have the possibility to calculate the sin φ, the reactive power, and the apparent power of
e.g., three-phase motors.

sin φ = Q / S
sin φ
sin φ hast to be between -1 and 1 sein!
Blind Power: Q
Apparent Power: S
Please fill all mandatory inputs.

An example:

A three-phase motor with an apparent power of 15 KVA has a sin phi of 0.33.
What reactive power results from these specifications?

sin φ = Q / S
Q= S x sin phi
Q = 15 KVA x 0.33
Q = 4.95 KVAr


Measuring Units:

Reactive power     Q = Kilovolt ampere reactive [kVAr]
Apparent power    S = Kilovolt ampere [KVA]
sin φ                             no measuring unit 



Drehstrommotor-Normmotor Blindleistung berechnen
To the product page "three-phase motors"