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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 /1904/CH8/EX8.4 | |
| 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 '1904/CH8/EX8.4')
| -rwxr-xr-x | 1904/CH8/EX8.4/8_4.sce | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/1904/CH8/EX8.4/8_4.sce b/1904/CH8/EX8.4/8_4.sce new file mode 100755 index 000000000..09b843f85 --- /dev/null +++ b/1904/CH8/EX8.4/8_4.sce @@ -0,0 +1,28 @@ +//To determine the necessity of additional capacitors
+//Page 398
+clc;
+clear;
+
+S1=7800; //Peak Load in kVA
+T=3*2000; //Total Rating of the Transformer
+pf1=0.89; //Load Power Factor
+TC=120/100; //Thermal Capability
+Qc=1000; //Size of capacitor
+
+P=S1*pf1; //Real Load
+Q1=S1*sind(acosd(pf1)); //Reactive Load
+
+Q2=Q1-Qc; //The New Reactive Load
+pf2=P/sqrt((P^2)+((Q1-Qc)^2)); //Improved Power Factor
+
+S2=P/pf2; //Corrected Apprarent power
+
+ST=T*TC; //Transformer Capabilty
+
+pf3=P/ST; //New Corrected Power factor required
+
+Q2new=P*tand(acosd(pf3)); //Required Reactive Power
+Qcadd=Q2-Q2new; //Additional Rating of the Capacitor
+
+printf('\na) Since the Apparent Power(%g kVAr) is more than Transformer Capability (%g kVAr), \nHence Additional Capacitors are required\n',S2,ST)
+printf('b) The Rating of the Addtional capacitor is %g kVAr\n',Qcadd)
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