Lab · Electrical Engineering
Power & Three-Phase Lab
AC power · power triangle · PF correction · balanced three-phase.
Presets
Known quantities
Supply any two independent quantities; a signed Q or a lagging/leading nature fixes the sign of Q. Inconsistent sets are refused, never reconciled.
Power factor nature
Complete the state
This workspace still needs: two of P, Q, S, PF. Enter the missing values — nothing is assumed.
Derived results · Power Triangle
This workspace still needs: two of P, Q, S, PF. Enter the missing values — nothing is assumed.
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.