Exercices sur le chapitre 5 : transformateur monophasé réel.
La section S du circuit magnétique vaut 16 cm2, le nombre de spires N2 du
secondaire est de 182. La résistance R1 du primaire a une valeur de 8,0 . 1°)
Calculer les intensités I1n et I2n des courants nominaux. 2°) un essai à vide sous
tension primaire nominale a donné : U20 = 78,0 V ; I10 = 0,12 A ; P10 = 8,0 W.
Exercice 1: étude expérimentale de dipôles électriquesLa tension uR'(t) est proportionnelle à l'intensité i(t) qui circule dans le circuit
après la fermeture de l'interrupteur K. Connaissant les valeurs de uR'(t) et la
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