Reactive Power In Ac Circuit. Reactive power is symbolized by the letter q and is measured in the unit of volt amps reactive var. It will prove beneficial to represent any component s opposition to current in terms of complex numbers rather than scalar quantities of resistance and reactance.
Total power in an ac circuit both dissipated and absorbed returned is referred to as apparent power. Techopedia explains reactive power another way to explain this is that reactive power is the resultant power in watts of an ac circuit when the current waveform is out of phase with the waveform of the voltage usually by 90 degrees if the load is purely reactive and is the result of either capacitive or inductive loads. Reactive power is the imaginary or complex power in a capacitive or inductive load.
By creating a phase difference between voltage and current these components lead to reactive power which refers to power that is delivered by the source but not consumed by the load.
Total power in an ac circuit both dissipated and absorbed returned is referred to as apparent power. Since the voltage of the reactance is equal to the reactance multiplied by the. Total power in an ac circuit both dissipated and absorbed returned is referred to as apparent power. Electrical power consumed by a resistance in an ac circuit is different to the power consumed by a reactance as reactances do not dissipate energy.
