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+// Electric Machinery and Transformers
+// Irving L kosow 
+// Prentice Hall of India
+// 2nd editiom
+
+// Chapter 13: RATINGS,SELECTION,AND MAINTENANCE OF ELECTRIC MACHINERY
+// Example 13-3
+
+clear; clc; close; // Clear the work space and console.
+
+// Given data
+// Class A insulation
+T_A = 105 ; // Temperature in degree celsius recorded by the embedded detectors
+life_orig = 5 ; // Life in years of the motor (standard)
+// Class B insulation
+T_B = 130 ; // Temperature in degree celsius recorded by the embedded detectors
+
+// Calculations
+delta_T = T_B - T_A ; // Positive temperature difference betw the given
+// max hottest spot temperature of its insulation and the ambient temperature recorded.
+// T_A and T_B are chosen from table 13-1
+E = 2 ^ (delta_T/10); // Life extension factor
+  
+Life_calc = life_orig * E ; // Increased life expectancy of the motor in years
+
+// Display the results
+disp("Example 13-3 Solution : ");
+printf(" \n Life extension factor : E = %.2f \n ",E );
+printf(" \n Increased life expectancy of the motor : Life_calc = %.1f years ",Life_calc);