Power Triangle From Apparent
Calculator

Inputs

Real power (kW)
40

Results

Real power (kW)
40
Reactive power (kVAr)
29.999999

Electrical results

Real power (kW)40
Reactive power (kVAr)29.999999

formula-map diagram

Real power (kW)
40
Reactive power (kVAr)
29.999999

Electrical relationship

Formula

P = S × cos φ ; Q = S × sin φ

= 40

Note

This is a simplified model: it applies the textbook relationship to the numbers you entered and assumes ideal components, steady-state sinusoidal conditions, balanced loads and copper resistivity of 0.0172 Ω·mm²/m at 20 °C. It ignores component tolerances, temperature drift, skin effect, harmonics, inrush, transformer and battery losses, and it is not a substitute for the wiring code that applies where you are. Have any installation sized and verified by a licensed electrician or engineer.

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