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+//Book Name:Fundamentals of Electrical Engineering
+//Author:Rajendra Prasad
+//Publisher: PHI Learning Private Limited
+//Edition:Third ,2014
+
+//Ex10_11.sce
+
+clc;
+clear;
+
+
+P_in_HP=25;
+s=0.04;
+p=4;
+f=50;
+Ns=(120*f)/p;
+ns=Ns/60;
+nf=(1-s)*ns;
+P_in_watt=P_in_HP*735.5;
+Tf=P_in_watt/(2*%pi*nf);
+sf=s;
+sp=2-s;         //At the time of plugging the slip is 200%
+a=4;
+X2_by_R2=a;
+Tp=(sp/sf)*((1+(sf^2*X2_by_R2^2))/(1+(sp^2*X2_by_R2^2)))*Tf;
+printf("\n Plugging torque at full load=%2.1f Nm",Tp)