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

Q = U x I x sin φ x √3
Blind Power: Q
Voltage: V
Current: I
sin φ
sin φ hast to be between -1 and 1 sein!
Please fill all mandatory inputs.

For Example:

A 400 volt three-phase standard motor has a rated current of 34.516 amperes and a sin φ of 0.92.
What is the electrical binding power resulting from these specifications?

Q = V x I x sin φ x √3
Q = 400 V x 34.516 A x 0.92 x √3
Q = 22 kVAr


Measuring Units:

Reactive power  Q = Kilovolt ampere reactive [KVAr]
Voltage                V = Volt [V]
Current                 I = Ampere [A]
sin φ                           no measuring unit 
√3 or 1.73                   no measuring unit 



Drehstrommotoren berechnen
To the product page "three-phase motors"