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//===========================================================================
//chapter 8 example 11
clc;clear all;
//variable declaration
V = 230; //voltage in volts
I = 4; //current in A
I1 = 5; //current in A
cosphi = 1; //power factor
h = 6; //hours
R = 2208; //revolutios made by meter
R1 = 1472; //revolutios made by meter
E1 = 400; //energy consumption
h1 =4;
//calculations
E = (V*I*cosphi*h)/(1000); //energy consumption in kWh
M = R/(E); //meter constant in rev/kWh
cosphi2 = (R1/(E1)*(1000/(V*I1*h1))); //power factor of the load is cosphi2 for second measuremnet
//result
mprintf("meter constant = %3.2f revolutions/kWhr",M);
mprintf("\npower factor of the load is cosphi2 for second measuremnet = %3.2f",cosphi2);
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