initial commit / add all books

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+//To determine the setting of the regulator so that the voltage criteria is met

+//Page 478

+clc;

+clear;

+l=10; //Length of the feeder

+s1=1.75;

+ra=0.386;

+xa=0.4809;

+xd=0.1802;

+xL=xa+xd;

+Vb=120;

+pf=0.85; //Power Factor

+S=1100; //Load in kVA

+Vln=7.62; //line to neutral voltage in kV

+Reff=ra*(l-s1)/2;

+Xeff=xL*(l-s1)/2;

+

+//Primary Ratings

+CTp=150; //Current Tranformer

+PTn=63.5; //POtential Transformer

+

+//R Value of the dial

+Rset=(CTp/PTn)*Reff;

+Rsetpu=Rset/Vb;

+

+//X value of the dial

+Xset=(CTp/PTn)*Xeff;

+Xsetpu=Xset/Vb;

+

+VRP=1.0138; //Assumption Made on the Regulating Point

+//Output Voltage of the Regulator

+Vreg=VRP+((S/Vln)*((Rset*pf)+(Xset*sind(acosd(pf))))/(CTp*Vb)); 

+

+

+printf('\na) The Regulating Voltage is %g pu V\n',Vreg)

+printf('As per Table 9-6; the primary voltage criteria are met by using the R and X settings\n')

+printf('b) The Voltage Profiles are given in the result file attached\n')