Enter the reactance and the current of a system into the calculator to determine the kilovolt-ampere reactive (KVAR).
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KVAR Formula
The following formula is used to calculate kilovolt-ampere reactive.
KVAR = Q = X* I ^2
- Where KVAR is the reactive power
- X is the reactance of the system (ohms)
- I is the current of the system/circuit (amps)
To calculate the reactive power (KVAR), multiply the reactance by the current squared.
KVAR Definition
What is KVAR?
KVAR, short for kilovolt-ampere reactive, is a measure of the electrical reactive power of a system. This term is most often used when describing and talking about energy savings systems for devices that run on AC current.
Example Problem
How to calculate KVAR?
- First, determine the reactance of the savings system.
For this problem, the reactance is calculated to be 40 ohms.
- Next, determine the current of the system.
For this example, the current of the circuit is measured to be 150 amps.
- Finally, calculate the KVAR.
Using the formula above, the KVAR is calculated to be:
KVAR = Q = X* I ^2
KVAR = Q = 40 * 150^2
KVAR = 900,000 KVAR
