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// FUNDAMENTALS OF ELECTICAL MACHINES
// M.A.SALAM
// NAROSA PUBLISHING HOUSE
// SECOND EDITION
// Chapter 1 : REVIEW OF ELECRTIC CIRCUITS
// Example : 1.12
clc;clear; // clears the console and command history
// Given data
P = 120 // total power in kW
cos_teta = 0.6 // power factor
// caclulations
teta = acosd(0.6) // power factor angle
P_1 = tand(teta)*P/sqrt(3)
P_2 = (P_1+P)/2 // second wattmeter reading in kW
// display the result
disp("Example 1.12 solution");
printf(" \n Second wattmeter reading \n P_2= %.1f kW \n", P_2);
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