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//Chapter 5
//Example 5_9
//PAge 95
clear;clc;
ml=240;
pf=0.8;
ac=50000;
fc=50;
rc=0.1;
md1=ml/pf;
ab1=fc*md1+rc*ac;
flat1=ab1/ac;
md2=ml/1;
ab2=fc*md2+rc*ac;
as=ab1-ab2;
printf("With power factor = %.1f \n", pf);
printf("Maximum demand = %.0f kVA \n", md1);
printf("Annual bill = Rs. %.0f \n", ab1);
printf("Flat rate per unit = Rs. %.3f \n\n", flat1);
printf("With power factor unity \n");
printf("Maximum demand = %.0f kVA \n", md2);
printf("Annual bill = Rs. %.0f \n", ab2);
printf("Annual saving = Rs. %.0f\n", as);
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