(1) in an AC system, the product of voltage, E and current, I . Apparent power (or total power) is composed of two mutually independent components—an active component (real power), and a reactive component (imaginary power). Apparent power is denoted by S, and has the unit of volt-amperes.
(2) the scalar product of the voltage and current delivered to the load. It can also be expressed as the vector S= P + jQ, where P = real power and Q = reactive power.
(2) the scalar product of the voltage and current delivered to the load. It can also be expressed as the vector S= P + jQ, where P = real power and Q = reactive power.
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