diff options
| author | prashantsinalkar | 2017-10-10 12:27:19 +0530 |
|---|---|---|
| committer | prashantsinalkar | 2017-10-10 12:27:19 +0530 |
| commit | 7f60ea012dd2524dae921a2a35adbf7ef21f2bb6 (patch) | |
| tree | dbb9e3ddb5fc829e7c5c7e6be99b2c4ba356132c /3472/CH34/EX34.8/Example34_8.sce | |
| 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 '3472/CH34/EX34.8/Example34_8.sce')
| -rw-r--r-- | 3472/CH34/EX34.8/Example34_8.sce | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/3472/CH34/EX34.8/Example34_8.sce b/3472/CH34/EX34.8/Example34_8.sce new file mode 100644 index 000000000..561a59f5d --- /dev/null +++ b/3472/CH34/EX34.8/Example34_8.sce @@ -0,0 +1,30 @@ +// A Texbook on POWER SYSTEM ENGINEERING
+// A.Chakrabarti, M.L.Soni, P.V.Gupta, U.S.Bhatnagar
+// DHANPAT RAI & Co.
+// SECOND EDITION
+
+// PART III : SWITCHGEAR AND PROTECTION
+// CHAPTER 8: PROTECTION OF ALTERNATORS AND AC MOTORS
+
+// EXAMPLE : 8.8 :
+// Page number 627
+clear ; clc ; close ; // Clear the work space and console
+
+// Given data
+kV = 11.0 // Alternator voltage(kV)
+P = 100.0 // Alternator maximum rating(MW)
+PF = 0.8 // Power factor
+X = 0.1 // Reactance of alternator(pu)
+i = 500.0 // Current(A)
+per = 10.0 // Windings unprotected(%)
+
+// Calculations
+I = P*1000/(3**0.5*kV*PF) // Rated current of alternator(A)
+a = i/I // Relay setting
+I_n = a*I*100/per // Current through neutral(A)
+R = kV*1000/(3**0.5*I_n) // Magnitude of neutral earthing resistance(ohm)
+
+// Results
+disp("PART III - EXAMPLE : 8.8 : SOLUTION :-")
+printf("\nMagnitude of neutral earthing resistance, R = %.2f ohm\n", R)
+printf("\nNOTE: ERROR: Unit of resistance is not mentioned in textbook solution")
|