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authorprashantsinalkar2017-10-10 12:27:19 +0530
committerprashantsinalkar2017-10-10 12:27:19 +0530
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+//Electric Drives:concepts and applications by V.subrahmanyam
+//Publisher:Tata McGraw-Hill
+//Edition:Second
+//Ex4_20
+clc;
+clear;
+R=0.05;// Resistance in ohm
+N0=1000;//Speed in rpm
+Rf=46;// Resistance in ohm
+I1=75;//Current in A
+I2=150;//Current in A
+I3=250;//Current in A
+V=230;// voltage in V
+Eb=230;//Back emf in V
+If=V/Rf;
+Ia1=I1-If;
+Eb1=V-(Ia1*R);
+N1=(Eb1/Eb)*N0;
+disp(N1,"The speed N1 in rpm is:")
+Ia2=I2-If;
+Eb2=V-(Ia2*R);
+N2=(Eb2/Eb)*N0;
+disp(N2,"The speed N2 in rpm is:")
+Ia3=I3-If;
+Eb3=V-(Ia3*R);
+N3=(Eb3/Eb)*N0;
+disp(N3,"The speed N3 in rpm is:")
+