Reactive Power Converter

This power factor calculator helps examine the alternating current (AC) flowing through electrical circuits. You presumably already know that you can simulate direct current (DC) using Ohm's law. This process is more difficult in the case of AC since such circuits have both actual and reactive power.

The values of the various forms of power in the circuit may be determined with this calculator. It will also provide a power factor formula that expresses the relationship between real and apparent power.

What distinguishes reactive power from real power?

There is only Real Power. Real power is necessary to generate heat and use the electric and magnetic fields produced by reactive power. DC circuits have no VAr since real power is equal to reactive power. Due to current and voltage having a zero phase angle (), reactive power does not exist in DC circuits.

The actual power, reacting, and obvious

It would help if you first gained a deeper awareness of the real, reactive, and seeming power to comprehend the power factor.

In an electrical circuit, real power often referred to as actual or active power and designated with the letter P, does the actual work while being dissipated by resistors. It is the sole source of energy in a DC circuit. Current and voltage levels in an AC circuit fluctuate sinusoidally rather than being fixed values. All transferred power is active if there is no phase shift between these two numbers. Watts are used to measuring power.

When the current and voltage are out of phase by 90 degrees, reactive power, represented by the letter Q, is transferred. In this scenario, no real power is lost because the net energy transferred in the AC circuit equals zero. DC circuits never include reactive power. It is related to the reactance that inductors and capacitors create in AC circuits. Volt-Amps-Reactive is how we measure it (VAR).

Real and reactive powers are combined to form apparent power, which is represented by the letter S. Without taking into account the effect of the phase angle, it is the product of the RMS (root mean square) values of voltage and current in the circuit. Additionally, it is a vector sum of P and Q. In Volt-Amps, we measure apparent power (VA).

How is reactive power calculated?

Reactive power is the power that flows back from a destination toward the grid in an alternating current scenario and is calculated using the formula reactive power = current*voltage*sin(phase difference). The Q sign stands for reactive power.

How do I use this online calculator to compute reactive power? Enter current (I), voltage (V), and phase difference () into the fields provided and click the calculate button to utilize this online calculator for reactive power. With the input numbers, the computation of reactive power can be explained as follows: 249.4153 = 2.4*120*sin (1.0471975511964).

Information about Reactive Power

Consider a short AC circuit that consists of a linear load and a power source that produces sinusoidal voltage. The instantaneous power for a sinusoidal alternating current is the sum of the instantaneous voltage and current (see the animation below):

Reactive Power Converter Formula

Where IP is the maximum current, up is the maximum voltage, t is the duration, u is the phase shift between the voltage and current, and angular frequency.

In an entirely resistive load, the current and voltage peak and reverse polarity simultaneously; thus, their product is always positive, or zero, and energy only flows in one direction or not at all if the voltage and current are both zero.


Where VL = Line to line voltage onwindingsideonwindingside

Base DC Current (Idb ) = Rated DC Current (Idr)

Base DC Power (Pdc) = nb × Vdb × Idb, where nb = number of bridges in series

BaseBase AC voltage (Vb) = (Va)

Base AC Power = Base DC Power

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