Apparent Power

apparent power

[ə′pa·rənt ′pau̇·ər] (electricity) The product of the root-mean-square voltage and the root-mean-square current delivered in an alternating-current circuit, no account being taken of the phase difference between voltage and current.

Apparent Power

a quantity that is equal to the product of the effective values of the periodic electric current I in a circuit and of the voltage U across the terminals of the circuit: S = UI. For a sinusoidal current (in complex form), S͂ = U̇İ, where U̇ is the complex effective value of the voltage and İ is the conjugate of the complex effective value of the current. S͂ = P + jQ, where P is the active power and Q is the reactive power; for inductive loads, Q > 0, and for capacitive loads, Q< 0. Apparent power is measured in volt-amperes.

单词	apparent power
释义	Apparent Power apparent power [ə′pa·rənt ′pau̇·ər] (electricity) The product of the root-mean-square voltage and the root-mean-square current delivered in an alternating-current circuit, no account being taken of the phase difference between voltage and current. Apparent Power a quantity that is equal to the product of the effective values of the periodic electric current I in a circuit and of the voltage U across the terminals of the circuit: S = UI. For a sinusoidal current (in complex form), S͂ = U̇İ, where U̇ is the complex effective value of the voltage and İ is the conjugate of the complex effective value of the current. S͂ = P + jQ, where P is the active power and Q is the reactive power; for inductive loads, Q > 0, and for capacitive loads, Q< 0. Apparent power is measured in volt-amperes. EncyclopediaSeea/p
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