initial commit / add all books

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diff --git a/83/CH17/EX17.1/example_17_1.sce b/83/CH17/EX17.1/example_17_1.sce
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+//Chapter 17
+//Example 17.1
+//page 602
+//To find reactive power sensitivity at the bus 
+clear;clc;
+Q_nom=1; //given
+Ksh=0.8; V=1.0; //assumed
+Qnet=(V^2-Ksh*V^2)*Q_nom;
+//senstivity=dQnet/dV
+s=2*V-2*V*Ksh;
+printf('Reactive power Sensitivity at the bus is = %0.2f pu',s);
diff --git a/83/CH17/EX17.1/result_example_17_1.txt b/83/CH17/EX17.1/result_example_17_1.txt
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+ 
+
+Reactive power Sensitivity at the bus is = 0.40 pu 
diff --git a/83/CH17/EX17.2/example_17_2.sce b/83/CH17/EX17.2/example_17_2.sce
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+//Chapter 17
+//Example 17.2
+//page 602
+//To find capacity of static VAR compensator 
+clear;clc;
+
+delta_V=5/100; //allowable voltage fluctuation
+S_sc=5000; //system short circuit capacity in MVA
+delta_Q=delta_V*S_sc; //size of the compensator
+printf('The capacity of the static VAR compensator is +%d MVAR',delta_Q);
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diff --git a/83/CH17/EX17.2/result_example_17_2.txt b/83/CH17/EX17.2/result_example_17_2.txt
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+ 
+
+The capacity of the static VAR compensator is +250 MVAR 
+