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+//Calculating equivalent impedence referred to primary

+//Chapter 3

+//Example 3.12

+//page 216

+clear;

+clc; 

+disp("Example 3.11")

+f=50;                //frequency in hertz

+r=6;                //turns ratio

+R1=0.90;             //primary resistance in ohms

+R2=0.03;              //secondary resistance in ohms

+X1=5;                 //primary reactance in ohms

+X2=0.13;              //secondary reactance in ohms

+I2=200;                //full-load current

+Re=(R1+(R2*r^2));

+printf("equivalent resistance reffered to primary,Re=%fohms",Re);

+Xe=(X1+(X2*r^2));

+printf("\nequivalent reactance reffered to primary,Xe=%fohms",Xe);

+Ze=sqrt(Re^2+Xe^2);

+printf("\nequivalent impedance reffered to primary,Ze=%fohms",Ze);

+Ii2=r*I2;

+printf("\nsecondary current reffered to primary side=%fA",Ii2);

+printf("\n(a)Voltage to be applied to the high voltage side=%dvolts",(Ii2*Ze));

+printf("\n(b)Power factor=%f",(Re/Ze));