Electrical engineering
Three-phase circuits
Power and current in balanced three-phase systems.
Electrical engineering
Three-phase active power
P = √3UₗIₗ cos φ→Electrical engineeringThree-phase reactive power
Q = √3UₗIₗ sin φ→Electrical engineeringThree-phase apparent power
S = √3UₗIₗ→Electrical engineeringThree-phase current
Iₗ = P / (√3Uₗ cos φ)→Electrical engineeringThree-phase star line voltage
Uₗ = √3Uφ→Electrical engineeringThree-phase delta line current
Iₗ = √3Iφ→