AC Power Calculator, Alternative Energy Today

AC Power Calculator

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AC Power Calculator

Enter 2 magnitudes + 2 phase angles to get the other values and press the AC Power Calculator button:


AC Power Calculation

The voltage V in volts (V) is eqaul to the current I in amps (A) times the impedance Z in ohms (Ω):

V(V) = I(A) × Z(Ω) = (|I|×|Z|) ∠ (θI + θZ)

The complex power S in volt-amps (VA) is equal to the voltage V in volts (V) times the current I in amps (A):

S(VA) = V(V) × I(A) = (|V|×|I|) ∠ (θV – θI)

The real power P in watts (W) is equal to the voltage V in volts (V) times current I in amps (A) times the power factor (cos φ):

P(W) = V(V) × I(A) × cos φ

The reactive power Q in volt-amps reactive (VAR) is equal to the voltage V in volts (V) times the current I in amps (A) time the sine of the complex power phase angle (φ):

Q(VAR) = V(V) × I(A) × sin φ

The power factor (FP) is equal to the absolute value of the cosine of the complex power phase angle (φ):

PF = |cos φ|

AC Power is an alternating current electrical energy consumed by the load connected in an electrical circuit, generally measured in horsepower, watts, kilo-watts or kilo-watts-hour. Whereas, single phase electric power is the electrical energy consumed by the load from phase & neutral. Three phase electric power is also the measure of electrical energy consumed by the load from three different phases Red (R), Yellow (Y) & Blue (B), each having different phase angles. Two phase four wires electric power is the electrical energy consumed by the load from two phases having difference of 1 quarter of a cycle between them.

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