Reactive Power In Ac Circuit. Reactive power is calculated by using the voltage and current associated with the circuit reactance. Reactive power is the imaginary or complex power in a capacitive or inductive load.
Voltage and current are 90 out of phase with each other. Calculating reactive power in ac circuits the reactive power is the power returned to the source by the reactive components of the circuit. This type of power is measured in volt amperes reactive abbreviated var.
Apparent power is symbolized by the letter s and is measured in the unit of volt amps va.
Reactive power represents an energy exchange between the power source and the reactive loads where no net power is gained or lost. Ac circuit with a purely reactive inductive load. In a purely reactive circuit no circuit power is dissipated by the load s. Voltage and current are 90 out of phase with each other.
