Lab · Electrical Engineering
Power & Three-Phase Lab
AC power · power triangle · PF correction · balanced three-phase.
Presets
Single-phase load
Power factor nature
Derived results · AC Power
Real power P
1.84 kW
Reactive power Q
1.38 kvar
Apparent power S
2.3 kVA
Phase angle φ
36.87°
| Power factor | 0.8 |
|---|---|
| Nature | Lagging (inductive, Q > 0) |
Model
- · RMS phasors; S = V·conj(I) = P + jQ; Q > 0 inductive (lagging), Q < 0 capacitive (leading).
- · PF correction is single-phase shunt-capacitor compensation of a lagging load; ideal compensation leaves P unchanged.
- · Three-phase: balanced systems only. Star: VLL = √3·Vphase, Iline = Iphase. Delta: VLL = Vphase, Iline = √3·Iphase. Switching the connection keeps line quantities and re-derives phase quantities.