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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/CH5/EX5.54 | |
| 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/CH5/EX5.54')
| -rw-r--r-- | 3760/CH5/EX5.54/Ex5_54.sce | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/3760/CH5/EX5.54/Ex5_54.sce b/3760/CH5/EX5.54/Ex5_54.sce new file mode 100644 index 000000000..0959e9af5 --- /dev/null +++ b/3760/CH5/EX5.54/Ex5_54.sce @@ -0,0 +1,15 @@ +clc;
+p=2*10^6; // rated power of alternator
+v=11000; // rated voltage of alternator
+zs=0.3+5*%i; // synchronous impedance per phase
+pf=0.8; // lagging power factor
+vt=v/sqrt(3); // terminal voltage
+ia=p/(sqrt(3)*v); // full load armature current
+// with vt as reference phasor
+Ef=vt+ia*(pf-sqrt(1-pf^2)*%i)*zs;
+// now excitation level is same but load power fcator is leading
+printf('Load current is %f A\n',ia);
+de=cosd(atand(imag(Ef),real(Ef))); // angle between excitation and terminal voltage
+vt=abs(Ef)*(de+sqrt(1-de^2)*%i)-ia*(pf+sqrt(1-pf^2)*%i)*zs;
+printf('Terminal voltage at %f leading power factor is %f V per phase\n',pf,abs(vt));
+printf('Line terminal voltage is %f KV',(sqrt(3)*abs(vt))/1000);
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