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+// FUNDAMENTALS OF ELECTICAL MACHINES 
+// M.A.SALAM 
+// NAROSA PUBLISHING HOUSE 
+// SECOND EDITION
+
+// Chapter 3 : TRANSFORMER AND PER UNIT SYSTEM
+// Example : 3.1
+clc;clear; // clears the console and command history 
+
+// Given data
+V_1 = 2200  // primary voltage of transformer in V
+V_2 = 220   // secondary voltage of transformer in V
+N_2 = 56    // number of turns in the secondary coil of transformer
+kVA = 25    // kVA rating of transformer
+
+// caclulations 
+a = V_1/V_2         // turn ratio
+N_1 = a*N_2         // number of primary turns 
+I_1 = kVA*10^3/V_1  // primary full load current in A
+I_2 = kVA*10^3/V_2  // secondary full load current in A
+
+// display the result 
+disp("Example 3.1 solution");
+printf(" \n Number of primary turns \n N_1 = %.0f \n", N_1);
+printf(" \n Primary full load current \n I_2 = %.2f A \n", I_1);
+printf(" \n Secondary full load current \n I_2 = %.1f A \n", I_2);