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electricitecorrectionexamen.py

Created by condouarthur

Created on December 19, 2023

804 Bytes

Excitation séparé ( inducteur = circuit indépendant et alimentation continue pour l'induit)
Excitation série ( inducteur et induit dans le même circuit / Une alimentation unique en continu)
Si Q ( puissance réactive ) positive : inductif sinon capacitif
facteur de puissance tan phi = Q/P
P = IUcosPhi * sqrt (nombre de phase)
facteur de puissance à vide cos phi0 = P10/V10I10
Facteur de puissance en cc cos phi cc = P1cc/V1ccI1cc
facteur de puissance en régime nominal cosphi1n = P1n / V1nI1N
m = V20/V10  élévateur ou réducteur de tension
Rf à vide = V10/I10cosphi10
Lm à vide = V10 / I10 sin phi 10 w
Rs résistance secondaire
Rs = mV1cccosphicc/I2cc
Xs réactance mV1ccsin phicc/I2cc
DeltaV2n = V20 - V2n = I2n(Rscosphi2n + Xs sinphi2n)
Or I2n = I1n/m

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