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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/CH3/EX3.25/ch3_25.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/CH3/EX3.25/ch3_25.sci')
| -rwxr-xr-x | 503/CH3/EX3.25/ch3_25.sci | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/503/CH3/EX3.25/ch3_25.sci b/503/CH3/EX3.25/ch3_25.sci new file mode 100755 index 000000000..1531c53ed --- /dev/null +++ b/503/CH3/EX3.25/ch3_25.sci @@ -0,0 +1,32 @@ +//find pu value of the equivalent ckt,steady state short ckt current and voltages
+
+clc;
+r=5; //MVA rating
+V_Bp=6.35; //for primary
+I_Bp=r*1000/V_Bp;
+V_Bs=1.91; //for secondary
+I_Bs=r*1000/V_Bs;
+//from resp tests
+V1=.0787;
+I1=.5;
+V2=.1417;
+I2=.5;
+V3=.1212;
+I3=.5;
+X12=V1/I1;
+X13=V2/I2;
+X23=V3/I3;
+X1=I1*(X12+X13-X23);
+X2=I2*(X23+X12-X13);
+X3=I3*(X13+X23-X12);
+disp(X1,'X1(pu)');
+disp(X2,'X2(pu)');
+disp(X3,'X3(pu)');
+
+V1=1;
+I_sc=V1/X13;
+I_scp=I_sc*I_Bp; disp(I_scp,'sc current primary side(A)');
+I_sct=I_sc*r*1000*1000/(400/sqrt(3)); disp(I_sct,'sc current tertiary side(A)');
+V_A=I_sc*X3;
+V_Aact=V_A*1.91*sqrt(3);
+disp(V_Aact,'V_A(actual) line to line(kV)');
\ No newline at end of file |