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+// Example 4.5
+// Computation of (a) Shaft speed (b) Mechanical power developed
+// (c) Developed torque
+// Page No. 152
+
+clc;
+clear;
+close;
+
+// Given data
+Prcl=263;               // Rotor copper loss
+Pgap=14580;             // Power input to the rotor
+fs=60;                  // Frequency
+p=4;                    // Number of poles
+
+
+
+// (a) Shaft speed
+s=Prcl/Pgap;               // Slip
+ns=120*fs/p;               // Speed of stator
+nr=ns*(1-s);               // Speed of shaft
+
+// (b) Mechanical power developed
+Pmech=Pgap-Prcl;                  // Mechanical power developed
+Pmechhp=Pmech/746;                // Mechanical power developed in hp
+
+//(c) Developed torque
+TD=5252*Pmechhp/nr;
+
+
+// Display result on command window
+printf("\n Shaft speed = %0.1f r/min ",nr);
+printf("\n Mechanical power developed in hp = %0.2f hp ",Pmechhp);
+printf("\n Developed torque = %0.1f lb-ft ",TD);