diff options
Diffstat (limited to '3760/CH3/EX3.35/Ex3_35.sce')
-rw-r--r-- | 3760/CH3/EX3.35/Ex3_35.sce | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/3760/CH3/EX3.35/Ex3_35.sce b/3760/CH3/EX3.35/Ex3_35.sce new file mode 100644 index 000000000..f295338c2 --- /dev/null +++ b/3760/CH3/EX3.35/Ex3_35.sce @@ -0,0 +1,34 @@ +clc;
+p=4; // number of poles
+np=3; // number of phases
+f=50; // frequency of alternator
+sap=8; // slot angular pitch
+c=12; // number of concentric coils in field winding
+tf=6; // turns per field coil
+ta=28; // series armature turn per phase
+ar=0.6; // armature radius
+la=4; // armature length
+g=0.06; // gap length
+w=0.96; // winding factor for armature winding
+fc=1000; // field current
+disp('case a');
+kd=sind((np*sap)/2)/(np*sind(sap/2)); // distribution factor
+kp=1; // coil span factor
+kf=kd*kp; // winding factor for field winding
+nf=tf*c; // number of field turn
+F=(4*kf*nf*fc)/(%pi*p);
+printf('Peak value of fundamental mmf produced by field winding is %f AT/pole\n',F);
+disp('case b');
+uo=4*%pi*10^-7; // free space permeability
+B=(uo*F)/g;
+printf('Peak value of fundamental flux density wave is %f T\n',B);
+disp('case c');
+v=(4*B*la*ar)/p;
+printf('Fundamental value of air gap flux per pole is %f W\n',v);
+disp('case d');
+eph=sqrt(2)*%pi*f*v*ta*w;
+printf('EMF per phase is %f V\n',eph);
+el=sqrt(3)*round(eph);
+printf('Line EMF is %f V',el);
+
+
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