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// Book - Power System: Analysis & Design 5th Edition
// Authors - J. Duncan Glover, Mulukutla S. Sharma, Thomas J. Overbye
// Chapter - 4 : Example 4.5
// Scilab Version 6.0.0 : OS - Windows
clc;
clear;
T = 795000; // Size of the Conductor in Circular mils (cmil)
S = 0.40; // Spacing between Conductors in metre
l = 10; // Spacing between the Adjacent Conductors in metres
f = 60;
Xa4=101; // Inductive reactance of Example 4.4 in Ohms
r = 0.0375; // Geometric Mean Radius at 60Hz in feet, from the table A.4
Ds = r*(1/3.28); // Solid Cylinderical Conductor value in metres
Dsl = sqrt(Ds*S); // For the two conductor bundle GMR in metres
Deq = nthroot([10*10*20], 3); // Eqivalent GMR of a Conductor in metres from Ex 4.4
La = ((2*10^-7)*(log(Deq/Dsl))*(1000*200)); // Average Inductance of Phase a in Henry
Xa = (2*%pi*f*La); // Inductive Reactance of Phase a in Ohms
dif=100-(Xa/Xa4)*100;
printf('Average Inductance of Phase is (La) = %0.3f H', La);
printf('\nInductive Reactance of Phase is (Xa) = %0.1f Ohm', Xa);
printf('\nThe inductive reactance is %0.0f percentage less than that of example 4.4',dif );
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