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+// Electric Machinery and Transformers
+// Irving L kosow 
+// Prentice Hall of India
+// 2nd editiom
+
+// Chapter 14: TRANSFORMERS
+// Example 14-38
+
+clear; clc; close; // Clear the work space and console.
+
+// Given data
+// 3-phase SCIM
+V = 440 ; // rated voltage in volt of SCIM
+hp = 100 ; // rated power in hp of SCIM
+PF = 0.8 ; // power factor
+V_1 = 155 ; // primary voltage in volt of Tr
+V_2 = 110 ; // secondary voltage in volt of Tr
+
+V_a = 110 ; // armature voltage in volt
+V_L = 440 ; // Load voltage in volt
+eta = .98 ; // efficiency of the Tr.
+
+// Calculations
+// case a
+// referring to appendix A-3,Table 430-150 footnotes
+I_L = 124*1.25 ; // Motor line current in A
+
+// case b
+alpha = V_a/V_L ; // Transformation ratio
+
+// case c
+I_a = (sqrt(3)/2)*( I_L / (alpha*eta) ); // Current in the primary of the scott transformers
+
+// case d
+kVA = (V_a*I_a)/((sqrt(3)/2)*1000); // kVA rating of the main and teaser transformers
+
+// Display the results
+disp("Example 14-38 Solution : ");
+
+printf(" \n a: Motor line current :\n    I_L = %d A \n ",I_L);
+
+printf(" \n b: Transformation ratio :\n    alpha = N_1/N_2 = V_a/V_L = %.2f \n",alpha);
+
+printf(" \n c: Current in the primary of the scott transformers :\n    I_a = %.f A \n",I_a);
+
+printf(" \n d: kVA rating of the main and teaser transformers :\n    kVA = %.1f kVA",kVA);