Examples
Examples
Try the starting example
- Real power (kW)
- 50
- Existing lagging power factor
- 0.75
- Target lagging power factor
- 0.95
- Line voltage (V)
- 400
- Frequency (Hz)
- 50
- Required ideal correction (kvar)
- 27.66165
- Per-phase delta capacitance (µF)
- 183.437013
- Per-phase star capacitance (µF)
- 550.31104
Try another scenario
- Real power (kW)
- 51
- Existing lagging power factor
- 0.75
- Target lagging power factor
- 0.95
- Line voltage (V)
- 400
- Frequency (Hz)
- 50
- Required ideal correction (kvar)
- 28.214883
- Per-phase delta capacitance (µF)
- 187.105754
- Per-phase star capacitance (µF)
- 561.317261
Calculation method
Calculation method
Required ideal correction (kvar)
Qc=P(tan acos(PFold)−tan acos(PFtarget)); ideal balanced three-phase capacitor bank, no resonance or switching design.
Per-phase delta capacitance (µF)
Qc=P(tan acos(PFold)−tan acos(PFtarget)); ideal balanced three-phase capacitor bank, no resonance or switching design.
Per-phase star capacitance (µF)
Qc=P(tan acos(PFold)−tan acos(PFtarget)); ideal balanced three-phase capacitor bank, no resonance or switching design.
Symbols and units
- a
- Real power (kW)
- b
- Existing lagging power factor
- c
- Target lagging power factor
- d
- Line voltage (V)
- e
- Frequency (Hz)
Use the units shown. A list keeps the order in which you enter its values. The symbol ^ means “raised to the power of”.
Assumptions & limits
Assumptions & limits
- User-supplied measurements and assumptions; Qc=P(tan acos(PFold)−tan acos(PFtarget)); ideal balanced three-phase capacitor bank, no resonance or switching design. Supported limits: Finite numeric values bounded to 1e9 magnitude; lists and tables contain 1–100 records unless a stricter bound is stated. Inputs use the units shown. Lists explicitly paired by a method must have matching lengths; independent polynomial coefficient vectors may differ. Respect stated physical, interpolation, policy and computational domain limits.
Are these inputs private?
These calculations run in your browser. A shared link contains the values you choose to share. Only questions submitted to the separate AI finder are sent to OpenAI.
Further reading
Background reading; this does not imply endorsement or independent review of SumFizz.