Calculate power factor, apparent power, reactive power, and correction capacitor's capacitance.
The power factor correction capacitor should be connected in parallel to each phase load.
The power factor calculation does not distinguish between leading and lagging power factors.
The power factor correction calculation assumes an inductive load.
Power factor calculation:
PF = |cos φ| = 1000 × P(kW) / (V(V) × I(A))
Apparent power calculation:
|S(kVA)| = V(V) × I(A) / 1000
Reactive power calculation:
Q(kVAR) = √(|S(kVA)|^2 - P(kW)^2)
Power factor correction capacitor's capacitance calculation:
S_corrected(kVA) = P(kW) / PF_corrected
Q_corrected(kVAR) = √(S_corrected(kVA)^2 - P(kW)^2)
Q_c(kVAR) = Q(kVAR) - Q_corrected(kVAR)
C(F) = 1000 × Q_c(kVAR) / (2πf(Hz) × V(V)^2)
For three phases with balanced loads:
Power factor calculation:
PF = |cos φ| = 1000 × P(kW) / (√3 × VL-L(V) × I(A))
Apparent power calculation:
|S(kVA)| = √3 × VL-L(V) × I(A) / 1000
Reactive power calculation:
Q(kVAR) = √(|S(kVA)|2 - P(kW)2)
Power factor correction capacitor's capacitance calculation:
Qc (kVAR) = Q(kVAR) - Qcorrected (kVAR)
C(F) = 1000 × Qc (kVAR) / (2πf(Hz)×VL-L(V)2)
Power factor calculation:
PF = |cos φ| = 1000 × P(kW) / (3 × VL-N(V) × I(A))
Apparent power calculation:
|S(kVA)| = 3 × VL-N(V) × I(A) / 1000
Reactive power calculation:
Q(kVAR) = √(|S(kVA)|2 - P(kW)2)
Power factor correction capacitor's capacitance calculation:
Qc (kVAR) = Q(kVAR) - Qcorrected (kVAR)
C(F) = 1000 × Qc (kVAR) / (3×2πf(Hz)×VL-N(V)2)