blob: 078b110aa3531d47b4694adf53a71e2b47e79515 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
|
//CHAPTER 2- STEADY-STATE ANALYSIS OF SINGLE-PHASE A.C. CIRCUIT
//Example 6
disp("CHAPTER 2");
disp("EXAMPLE 6");
//VARIABLE INITIALIZATION
f=50; //in Hertz
I1=20; //in Amperes
pf1=0.75; //power factor
v=230; //in Volts
pf2=0.9; //power factor(lagging)
//SOLUTION
phi1=acos(pf1);
res1=tan(phi1); //result1 = tan(Φ1)
phi2=acos(pf2);
res2=tan(phi2); //result2 = tan(Φ2)
Ic=I1*pf1*(res1-res2);
w=2*%pi*f;
c=Ic/(v*w);
disp(sprintf("The value of capacitance is %f μF",c*(10^6)));
Qc=v*Ic;
disp(sprintf("The reactive power is %f kVAR",Qc/(10^3)));
I2=I1*(pf1/pf2);
disp(sprintf("The new supply current is %f A",I2));
//END
|
