Capacitor bank
Power factor
\[cos φ = \frac{P}{\sqrt{P^2 + Q^2}} \]· P: Active power, kW
· Q: Reactive power, kvar
Capacitors bank
\[Q = \frac{P·(tan \phi_{initial} - tan \phi_{target})}{\frac{U}{U_{capacitors}}} \] \[C = 10^9 \frac{Q}{3·(2· \pi · f · U^2)} \] \[I_C = 1000\frac{Q · \left(\frac{U}{Ucapacitors}\right)^2} {\sqrt{3} · U} \]· P: Active power, kW
· Q: Reactive power, kvar
· U: Three-phase voltage, V
· Ucapacitors: Capacitors bank voltage, V
· C: Capacity, µF
· f: Frequency, Hz
· Ic: Current rate capacitors, A
