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Power factor correction (PFC) of electrical systems monophase and three-phase lines.

Mono-phase or tri-phase PFC scheme

It calculates the reactive power to install to obtain the desired power factor (cosø) starting by the initial power factor (cosø).

Data input

Initial power factor (cosø):

cosø

Required power factor (cosø):

cosø

Active power

kW

Circuit voltage

V

Working frequency

50 Hz

60 Hz

Mono-phase line.
One capacitor
Tri-phase line.
3 capacitors in star configuration
Tri-phase line.
3 capacitors in delta configuration
Wait calculate.
Results
PFC reactive power to install kVAr
Initial apparent power kVA
Final apparent power kVA
Percentage of saving %
Capacity of each capacitor to install µF
RMS voltage at capacitors V eff

Notes.
To obtain optimal results the PFC must be local (close to the machinery), in this way you will recover also the loss on the supply line.

Example of characterisic cosø to correct :

Example of correction a 32 W neon lamp :

Instructions
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