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// Book - Power System: Analysis & Design 5th Edition
// Authors - J. Duncan Glover, Mulukutla S. Sharma, Thomas J. Overbye
// Chapter - 5 : Example 5.5
// Scilab Version 6.0.0 : OS - Windows
clc;
clear;
Vs = 765; // Sending end voltage in kV
Vr= Vs; // receiving end voltage is equal to sending end voltage
A = 0.9313; // Absolute line paramter A value in per unit from Ex 5.2
thetaA = 0.209*(%pi/180); // angle value of Parameter A in degree from Ex 5.2
B = 97; // Absolute line paramter B value in Ohm from Ex 5.2
thetaZ = 87.2*(%pi/180); // angle value of Parameter B in degree from Ex 5.2
Z1 = B;
Zc = 266.1; // The magnitude of Characteristic impedance in ohm from Ex 5.2
PrMAX1 = ((Vr*Vs)/Z1)-(((A*Vr^2)/Z1)*(cos(thetaZ-thetaA))); // The theoretical maximum real power delivered in MW
SIL = (Vr)^2/Zc; // Surge Impedance Load in MW
PrMAX2 = PrMAX1/SIL; // The theoretical maximum real power delivered in per unit
printf('The theoretical maximun power delivered is (PrMAX1) = %d MW', PrMAX1);
printf('\nSurge Impedance Load is (SIL) = %d MW', SIL);
printf('\n\nThe theoretical maximun power delivered in pu of SIL is (PrMAX2) = %0.2f per unit', PrMAX2);
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