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authorprashantsinalkar2017-10-10 12:27:19 +0530
committerprashantsinalkar2017-10-10 12:27:19 +0530
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+//CHAPTER 8- DIRECT CURRENT MACHINES
+//Example 25
+
+disp("CHAPTER 8");
+disp("EXAMPLE 25");
+
+
+//VARIABLE INITIALIZATION
+slot=24; //number of slots
+P=2; //number of poles
+N=18; //number of turns per coil
+B=1; //in Webers
+l=20/100; //effective length in meters
+rad=10/100; //radius in meters
+w=183.2; //angular velocity in rad/s
+
+//SOLUTION
+A=2;
+Z=slot*P*N; //total number of conductors
+ar1=(2*%pi*rad*l)/P;
+ar2=ar1*0.8; //since the magnetic poles 80% of the armature periphery
+phi=B*ar2; //effective flux per pole
+
+//solution (a)
+E_a=(P*Z*phi*w)/(2*%pi*A);
+disp(sprintf("(a) The induced emf is %f V",E_a));
+
+//solution (b)
+coil=slot/P; //number of coils in each path
+E_coil=E_a/coil;
+disp(sprintf("(b) The induced emf per coil is %f V",E_coil));
+
+//solution (c)
+E_turn=E_coil/N;
+disp(sprintf("(c) The induced emf per turn is %f V",E_turn));
+
+//solution (d)
+E_cond=E_turn/A;
+disp(sprintf("(d) The induced emf per conductor is %f V",E_cond));
+
+//The answers are slightly different due to the precision of floating point numbers
+
+//END
+