Correction factor from the power triangle calculator

Subtract target reactive-to-real ratio from the initial ratio under sinusoidal conditions.

K = \frac{\sqrt{1 - \mathrm{PF}_{\text{old}}^{2}}}{\mathrm{PF}_{\text{old}}} - \frac{\sqrt{1 - \mathrm{PF}_{\text{new}}^{2}}}{\mathrm{PF}_{\text{new}}}

Calculator

Enter the values you know and leave one box empty. Calculate finds the empty one, the result or any input.

Given

K = \frac{\sqrt{1 - {0.72}^{2}}}{0.72} - \frac{\sqrt{1 - {0.94}^{2}}}{0.94} \approx 0.6009

Symbol	Meaning	Unit
$K$	power triangle factor for the stated initial and target PF	kVAR/kW
$\mathrm{PF}_{\text{old}}$	original power factor	decimal
$\mathrm{PF}_{\text{new}}$	desired power factor	decimal

Results are estimates for study and screening. Check the inputs, units and assumptions before you use them for design, billing or contract decisions.