// FUNDAMENTALS OF ELECTICAL MACHINES // M.A.SALAM // NAROSA PUBLISHING HOUSE // SECOND EDITION // Chapter 3 : TRANSFORMER AND PER UNIT SYSTEM // Example : 3.3 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 I_0 = 0.5 // no-load current in A P_0 = 350 // absorbed power by transformer // caclulations phi = acos(.32) sin_phi = sin(phi) cos_phi = P_0/(V_1*I_0) // no-load power factor I_w = I_0*cos_phi // iron loss component of current A I_m = I_0*sin_phi // magnetizing component of current A // display the result disp("Example 3.3 solution"); printf(" \n The iron loss component of current A \n I_w = %.2f A \n", I_w); printf(" \n The magnetizing component of current A \n I_m = %.2f A \n", I_m);