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+clc
+//variable initialization
+Pout=50 //output of induction motor in kilowatt
+Vm=400 //input of motor in volt
+F0=50 //supply frequency in hrtz
+N1=1470 //speed of motor in rpm
+P=4 //number of pole
+Rs=0.42 //resistance of stator in ohm
+Rr=0.23 //resistance of rotor in ohm
+Xs=0.95 //reactance of stator in ohm
+Xr=0.85 //reactance of rotor in ohm
+Xm=28 //reactance of motor in ohm
+Sm=0.12 //slip of motor
+//Solution
+Vs=Vm/sqrt(3)
+W0=2*%pi*F0
+K=Rr/(Sm*(Xs+Xr))
+F=K*F0//Supply Frequency
+Tdm=3*P*Vs^2/(2*(K^2)*W0(Xs+Xr))
+Ws=(K*W0*2)/(P)
+Wm=Ws*(1-Sm)
+N2=Wm*60/(2*%pi)
+printf('\n\n Supply Frequency=%0.1f Hz\n\n',F)
+printf('\n\n The Breakdown Torque=%0.1f N-m\n\n',Tdm)
+printf('\n\n The Speed at maximum torque=%0.1f rpm\n\n',N2)