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| author | prashantsinalkar | 2017-10-10 12:27:19 +0530 |
|---|---|---|
| committer | prashantsinalkar | 2017-10-10 12:27:19 +0530 |
| commit | 7f60ea012dd2524dae921a2a35adbf7ef21f2bb6 (patch) | |
| tree | dbb9e3ddb5fc829e7c5c7e6be99b2c4ba356132c /3760/CH3/EX3.5/Ex3_5.sce | |
| parent | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (diff) | |
| download | Scilab-TBC-Uploads-7f60ea012dd2524dae921a2a35adbf7ef21f2bb6.tar.gz Scilab-TBC-Uploads-7f60ea012dd2524dae921a2a35adbf7ef21f2bb6.tar.bz2 Scilab-TBC-Uploads-7f60ea012dd2524dae921a2a35adbf7ef21f2bb6.zip | |
initial commit / add all books
Diffstat (limited to '3760/CH3/EX3.5/Ex3_5.sce')
| -rw-r--r-- | 3760/CH3/EX3.5/Ex3_5.sce | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/3760/CH3/EX3.5/Ex3_5.sce b/3760/CH3/EX3.5/Ex3_5.sce new file mode 100644 index 000000000..5d835efab --- /dev/null +++ b/3760/CH3/EX3.5/Ex3_5.sce @@ -0,0 +1,37 @@ +clc;
+p=4; // number of pole
+f=50; // frequency of supply
+ns=420; // stator turns
+nr=240; // rotor turns
+F=30*10^-3; // flux per pole
+kw=0.96; // winding factor for both stator and rotor
+nsph=ns/3; // stator turn per phase
+nrph=nr/3; // rotor turn per phase
+es=sqrt(2)*%pi*f*kw*nsph*F; // stator turn per phase
+disp('case a');
+// rotor is stationary
+s=1; // at standstill slip=1
+er=sqrt(2)*%pi*f*kw*nrph*F;
+printf('frequency of EMF in stator is %f Hz\n',f);
+printf('frequency of EMF in rotor is %f Hz\n',f);
+printf('Per phase stator EMF is %f V\n',es);
+printf('Per phase rotor EMF is %f V\n',er);
+disp('case b');
+sr=1440; // speed of rotor in rpm in direction of rotating flux
+Ns=(120*f)/p; // speed of rotating flux
+s=(Ns-sr)/Ns; // slip
+fr=s*f; // frequency of EMF in rotor
+er=sqrt(2)*%pi*fr*kw*nrph*F;
+printf('frequency of EMF in stator is %f Hz\n',f);
+printf('frequency of EMF in rotor is %f Hz\n',fr);
+printf('Per phase stator EMF is %f V\n',es);
+printf('Per phase rotor EMF is %f V\n',er);
+disp('case c');
+sr=1440; // speed of rotor in rpm opposite to the direction of rotating flux
+s=(Ns+sr)/Ns; // slip
+fr=s*f; // frequency of EMF in rotor
+er=sqrt(2)*%pi*fr*kw*nrph*F;
+printf('frequency of EMF in stator is %f Hz\n',f);
+printf('frequency of EMF in rotor is %f Hz\n',fr);
+printf('Per phase stator EMF is %f V\n',es);
+printf('Per phase rotor EMF is %f V\n',er);
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