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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 required.
This Excel Calculator Can Perform the Calculations of :-
1. Selecting an Automatic Capacitor Size :- The following calculator is used to determine the capacitor kVAR required to improve PF of a single load or entire power system. Actual power factor, peak kilowatt demand, desired PF and system voltage 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 required.
2. Automatic Capacitor Bank Sizing :-
Example: 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?
Formula: kVAR = kW x kW FACTOR
From the kW FACTOR calculator below , the FACTOR
is 0.685
Therefore: kVAR = 620 x .685 = 425
"Actual power factor, peak kilowatt demand, desired PF and system voltage are required."
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