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+//Book Name:Fundamentals of Electrical Engineering
+//Author:Rajendra Prasad
+//Publisher: PHI Learning Private Limited
+//Edition:Third ,2014
+
+//Ex8_17.sce.
+
+clc;
+clear;
+P=100e3;
+V=460;
+It=9.8;
+If=2.7;
+R=0.11;
+
+printf("\n (a)")
+I=(P/2)/V;
+Ia=I+If;
+Wa=Ia^2*R;
+Wsh=V*If;
+Ian=It-If;
+W_not=V*Ian;
+NL_armature_loss=Ian^2*R;
+other_loss=W_not-NL_armature_loss;            //other losses include iron,friction,windage losses
+T_loss_HL=Wa+Wsh+other_loss;
+Pi_HL=(P/2)+T_loss_HL;
+efficiency=((P/2)/Pi_HL)*100;
+printf("\n  Efficiency of the generator at half load=%2.1f percentage \n",efficiency)
+
+printf("\n (b)")
+I=P/V;
+Ia=I+If;
+Wa=Ia^2*R;
+Wsh=V*If;
+Ian=It-If;
+W_not=V*Ian;
+NL_armature_loss=Ian^2*R;
+other_loss=W_not-NL_armature_loss;            //other losses include iron,friction,windage losses
+T_loss_FL=Wa+Wsh+other_loss;
+Pi_FL=P+T_loss_FL;
+efficiency=(P/Pi_FL)*100;
+printf("\n  Efficiency of the generator at full load=%2.2f percentage \n",efficiency)
+