1.1.2 Which formula is used to calculate the reactive power of a 400V motor?
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 = U x I x sin φ x √3
Q = 400 V x 34.516 A x 0.92 x √3
Q = 22 kWAr
Measuring Units:
Reactive Power Q = Kilovolt-Ampere Reactive [KVAr]
Voltage U = Volt [V]
Current I = Ampere [A]
sin φ = without measuring unit
√3 or 1.73 = without measuring unit