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Calculations in the field of three-phase current and three-phase motors

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

S=U x I x √3
P=U x I x cos φ x √3
Q=U x I x sin φ x √3
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
√3 or 1.73 without