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diff --git a/1092/CH4/EX4.20/Example4_20.sce b/1092/CH4/EX4.20/Example4_20.sce new file mode 100755 index 000000000..1dd8dcf9f --- /dev/null +++ b/1092/CH4/EX4.20/Example4_20.sce @@ -0,0 +1,23 @@ +// Electric Machinery and Transformers
+// Irving L kosow
+// Prentice Hall of India
+// 2nd editiom
+
+// Chapter 4: DC Dynamo Torque Relations-DC Motors
+// Example 4-20
+
+clear; clc; close; // Clear the work space and console.
+
+// Given data
+SR = 0.1 ; // Given percent speed regulation 10% of a shunt motor
+omega_f1 = 60 * %pi ; // Full-load speed in rad/s
+
+// Calculations
+omega_n1 = omega_f1 * ( 1 + SR ); // No-load speed in rad/s
+
+S = omega_n1 * ( 1 / ( 2 * %pi )) * ( 60 / 1 ); // No-load speed in rpm
+
+// Display the results
+disp("Example 4-20 Solution : ");
+printf(" \n a: omega_n1 = %.2f \n ", omega_n1);
+printf(" \n b: S = %d rpm ", S );
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