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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 13-1
+
+clear; clc; close; // Clear the work space and console.
+
+// Given data
+// MOTOR(class A insulation ) is operated for 6 hrs
+T = 125 ; // Temperature in degree celsius recorded by the embedded detectors
+life_orig = 10 ; // Life in years of the motor (standard)
+
+// Calculations
+delta_T = T - 105 ; // Positive temperature difference between the given
+// max hottest spot temperature of its insulation and the ambient temperature recorded.
+// 105 is chosen from table 13-1(class A insulation)
+R = 2 ^ (delta_T/10); // Life reduction factor
+  
+Life_calc = life_orig / R ; // Reduced life expectancy of the motor in years
+
+// Display the results
+disp("Example 13-1 Solution : ");
+printf(" \n Life reduction factor : R = %d \n  ",R );
+printf(" \n Reduced life expectancy of the motor : Life_calc = %.1f years",Life_calc);