What is the primary measure of Reactive Power?

Reactive power is primarily measured in Volt-Amperes Reactive (VAR). This term is used to describe the power that oscillates between the source and load in an AC circuit, particularly due to reactive components such as inductors and capacitors. Unlike real power, which is measured in watts and represents actual energy consumed, reactive power is not consumed but is essential for maintaining voltage levels necessary for effective power delivery in the electrical system. VAR specifically quantifies the reactive power involved in magnetic fields in inductive loads and the electric fields in capacitive loads, which is critical for understanding power system stability and efficiency.

In contrast, real power measures energy consumption (watts), apparent power combines both real and reactive power (volt-amperes), and mho represents admittance, which is a different electrical parameter related to the ease with which current flows in a circuit. Understanding how reactive power operates and its importance in AC power systems is crucial for electrical engineering and power management.