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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 /1938/CH5/EX5.4/5_4.sce | |
| 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 '1938/CH5/EX5.4/5_4.sce')
| -rwxr-xr-x | 1938/CH5/EX5.4/5_4.sce | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/1938/CH5/EX5.4/5_4.sce b/1938/CH5/EX5.4/5_4.sce new file mode 100755 index 000000000..229ecfe75 --- /dev/null +++ b/1938/CH5/EX5.4/5_4.sce @@ -0,0 +1,26 @@ +clc,clear
+printf('Example 5.4\n\n')
+
+V_L=866
+VA=100*10^3
+I_L=VA/(sqrt(3)*V_L) //because VA=sqrt(3)*V_L*I_L
+I_aph=I_L//full load and star connected alternator
+V_ph=V_L/sqrt(3)
+
+//Graph is plotted and V_oc_ph and I_asc_Ph is obtained for
+//SCC for I_asc=66.67 A,I_f=2.4 A
+//OCC for I_f=2.4 A,V_oc_ph=240 V
+
+//for measruemnt of impedance
+V_oc_ph=240 //for I_f=2.4..From o.c.c graph
+I_asc_ph=66.67 //for I_f=2.4...From s.c.c graph
+Z_s=V_oc_ph/I_asc_ph
+R_a=0.15
+X_s=sqrt( Z_s^2-R_a^2 )
+
+V_ph_FL=500
+phi=acos(0.8) //lagging pf
+E_ph=sqrt((V_ph_FL*cos(phi)+I_aph*R_a)^2+(V_ph_FL*sin(phi)+I_aph*X_s)^2)
+regulation=100*(E_ph-V_ph)/V_ph
+
+printf('Full-load regulation at 0.8 lagging pf is %.2f percent ',regulation )
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