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| author | priyanka | 2015-06-24 15:03:17 +0530 |
|---|---|---|
| committer | priyanka | 2015-06-24 15:03:17 +0530 |
| commit | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (patch) | |
| tree | ab291cffc65280e58ac82470ba63fbcca7805165 /503/CH8/EX8.14/ch8_14.sci | |
| download | Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.tar.gz Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.tar.bz2 Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.zip | |
initial commit / add all books
Diffstat (limited to '503/CH8/EX8.14/ch8_14.sci')
| -rwxr-xr-x | 503/CH8/EX8.14/ch8_14.sci | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/503/CH8/EX8.14/ch8_14.sci b/503/CH8/EX8.14/ch8_14.sci new file mode 100755 index 000000000..e28b01d8c --- /dev/null +++ b/503/CH8/EX8.14/ch8_14.sci @@ -0,0 +1,40 @@ +//to calculate armature current, pf ,power angle, power , shaft torques,kVar
+
+clc;
+j=sqrt(-1);
+P=8000;
+Prot=500;
+Pmg=P+Prot;
+Pein=Pmg;
+Ef=750/sqrt(3);
+Vt=231;
+Xs=16;
+dl=asind(Xs*(Pein/3)/(Ef*Vt));
+Eff=Ef*complex(cosd(-dl),sind(-dl));
+Ia=(Vt-Eff)/(j*Xs);
+disp(abs(Ia),'armature current(A)');
+disp(cosd(atand(imag(Ia)/real(Ia))),'pf');
+f=50;
+p=4;
+n_s=120*f/p;
+w_s=2*%pi*n_s/60;
+T=Pein/w_s;disp(T,'torque developed(Nm)');
+T_s=P/w_s;disp(T_s,'shaft torques(Nm)');
+
+Ef=600/sqrt(3);
+Ia=(Vt-Ef)/(j*Xs);
+rr=3*Vt*Ia/1000;
+disp(rr,'kVar rating');
+c=(abs(Ia)/Vt)/(2*%pi*f);
+disp(-c,'capicator rating(F)');
+
+Ef=300/sqrt(3);
+Ia=(Vt-Ef)/(j*Xs);
+rr=3*Vt*Ia/1000;
+disp(-rr,'kVar rating');
+L=(Vt/abs(rr))/(2*%pi*f);
+disp(L,'inductor rating(H)');
+
+Ia=j*2000/Vt;
+Ef=Vt-j*Ia*Xs;
+disp(abs(Ef)*sqrt(3),'excitation(V)');
\ No newline at end of file |