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// Example 2.4
// Computation of (a) Secondary voltage (b) Load current
// (c) Input current to the primary (d) Input impedance looking into the primary terminals
// Page No. 51
clc;
clear;
close;
NHS=200; // Number of turns in primary
NLS=20; // Number of turns in secondary
E=120; // Primary voltage magnitude
ES_Mag=12; // Secondary voltage magnitude
ES_Ang=0; // Secondary voltage angle
Zload_Mag=100; // Load magnitude
Zload_Ang=30; // Load angle
f=60; // Frequency
// (a) Secondary voltage
a=NHS/NLS;
ELS=E/a;
// (b) Load current
IS_Mag=ES_Mag/Zload_Mag; // Load current magnitude
IS_Ang=ES_Ang - Zload_Ang; // Load current angle
//(c) Input current to the primary
Ip_Mag=IS_Mag/a; // Input current to the primary magnitude
Ip_Ang=IS_Ang; // Input current to the primary angle
//(d) Input impedance looking into the primary terminals
Zin_Mag=a^2*Zload_Mag; // Input impedance magnitude
Zin_Ang=Zload_Ang; // Input impedance angle
Zin_Mag=Zin_Mag/1000;
// Display result on command window
printf("\n Turns ratio = %0.0f ",a);
printf("\n Secondary voltage = %0.0f V", ELS);
printf("\n Load current magnitude = %0.2f A",IS_Mag);
printf("\n Load current angle = %0.0f deg",IS_Ang);
printf("\n Input current to the primary magnitude = %0.3f A",Ip_Mag);
printf("\n Input current to the primary angle = %0.0f deg",Ip_Ang);
printf("\n Input impedance magnitude = %0.0f KOhm", Zin_Mag);
printf("\n Input impedance angle = %0.0f deg", Zin_Ang);
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