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+clc
+// Fundamental of Electric Circuit 
+// Charles K. Alexander and  Matthew N.O Sadiku  
+// Mc Graw Hill of New York 
+// 5th Edition 
+
+// Part 1     :  AC Circuits 
+// Chapter 13 :  Magnetically Couple Circuits
+// Example 13 - 12
+
+clear; clc; close; 
+//
+// Given data
+ST  = 42000.0000;
+n   =     5.0000;
+VL2 =   240.0000; 
+//
+// Calculatioons Line Voltage and Current on The Primary Side 
+IL2 = ST/(sqrt(3)*VL2);
+IL1 = (n/(sqrt(3)))*IL2;
+VL1 = (sqrt(3)/n)*VL2;
+// Calculations KVA Rating 
+KVA = ST/3
+// Display the result
+disp("Example 13-12 Solution : ");
+disp("a. Type Transformer Connection is Y - Delta ")
+disp("b. Line Voltage and Current on The Primary Side  : ");
+printf(" \n IL1       = Line Current on The Primary Side      = %.3f A",IL1)
+printf(" \n VL1       = Voltage Current on The Primary Side   = %.3f Voltage",VL1)
+disp("c. KVA Rating   : ");
+printf(" \n KVA       = KVA Rating Each TRansformer           = %.3f KVA",KVA/1000)