Capacitor kVAR Required
The following graphic tool can be used to estimate the capacitor kVAR required to improve power factor of a single load or entire power system. Actual power factor, peak kilowatt demand and desired power factor are required. The best source for this information is the monthly utility bill or other local monitoring equipment.
A calculation of each months data for a 12 month period is recommended to determine the maximum kVAR, and optimal stages required.
Automatic Capacitor Bank Sizing
How much kVAR is required to correct an entire 480V system to a 90% power factor when the peak kilowatt demand month was 620kW at a 65% power factor?
Use the formula: kVAR = kW x kW FACTOR
From the kW FACTOR calculator below, the FACTOR is 0.685
Therefore: kVAR = 620 x 0.685 = 425kVAR
|Software:||Power Factor Table Calculator – Square D|
|Developer:||SQUARE D // Schneider Electric|
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