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Calculations in the field of alternating current and alternating current motors

Electrical formulae are often required for the "alternating current" voltage type. To simplify the handling,
we have expanded the "Online calculator" section with the formulae listed here.

S=U x I
P=U x I x cos φ
Q=U x I x sin φ
cos φ=P / S
sin φ=Q / S

Units of measurement used:

Apparent power S=kilovolt ampere [KVA]
Active power P=Kilowatt [kW]
Reactive power Q=Kilovolt ampere reactive [KVAr]
Voltage U=Volt [V]
Current I=Ampere [A]
cos φ without
sin φ without