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+
+// ELECTRICAL MACHINES
+// R.K.Srivastava
+// First Impression 2011
+// CENGAGE LEARNING INDIA PVT. LTD
+
+// CHAPTER : 6 : SYNCHRONOUS MACHINES
+
+// EXAMPLE : 6.30
+
+clear ; clc ; close ; // Clear the work space and console
+
+
+// GIVEN DATA
+
+f = 50;                       // Operating Frequency of the Synchronous generator in Hertz
+p = 2;                        // Number of the poles 
+Pt = 800;                     // Total loss in Watts
+Pr = 10;                      // Rotational loss in Watts
+
+
+// CALCULATIONS
+
+Ws = (4*%pi*f)/p;                                     // Synchronous speed in radians/s
+Ph = Pt-Pr;                                           // Hysteresis loss refered to stator in Watts
+Th = Ph/Ws;                                           // Torque at the shaft in Newton-meter
+
+
+// DISPLAY RESULTS
+
+disp("EXAMPLE : 6.30: SOLUTION :-");
+printf("\n (a) Power at the shaft, Ph = %.f W \n",Ph)
+printf("\n )b) Torque at the shaft , Th = %.2f N-m \n",Th)
+