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+// ELECTRIC POWER TRANSMISSION SYSTEM ENGINEERING ANALYSIS AND DESIGN
+// TURAN GONEN
+// CRC PRESS
+// SECOND EDITION
+
+// CHAPTER : 3 : FUNDAMENTAL CONCEPTS
+
+// EXAMPLE : 3.1 :
+clear ; clc ; close ; // Clear the work space and console
+
+// GIVEN DATA
+kV = 345 ; // Three phase transmission line voltage in kV
+Z_s = 366 ; // Surge impedance of line in Ω
+a = 24.6 ; // Spacing between adjacent conductors in feet
+d = 1.76 ; // Diameter of conductor in inches
+
+// CALCULATIONS
+SIL = (kV)^2/Z_s ; // Surge Impedance loading of line in MW
+
+// DISPLAY RESULTS
+disp("EXAMPLE : 3.1 : SOLUTION :-") ;
+printf("\n Surge Impedance Loading of line , SIL = %.f MW \n",SIL) ;
+
+printf("\n NOTE: Unit of SIL is MW and surge impedance is Ω") ;
+printf("\n ERROR: Mistake in unit of SIL in textbook \n") ;