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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 /3472/CH20/EX20.4/Example20_4.sce | |
| parent | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (diff) | |
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initial commit / add all books
Diffstat (limited to '3472/CH20/EX20.4/Example20_4.sce')
| -rw-r--r-- | 3472/CH20/EX20.4/Example20_4.sce | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/3472/CH20/EX20.4/Example20_4.sce b/3472/CH20/EX20.4/Example20_4.sce new file mode 100644 index 000000000..654ae14ea --- /dev/null +++ b/3472/CH20/EX20.4/Example20_4.sce @@ -0,0 +1,34 @@ +// A Texbook on POWER SYSTEM ENGINEERING
+// A.Chakrabarti, M.L.Soni, P.V.Gupta, U.S.Bhatnagar
+// DHANPAT RAI & Co.
+// SECOND EDITION
+
+// PART II : TRANSMISSION AND DISTRIBUTION
+// CHAPTER 13: WAVE PROPAGATION ON TRANSMISSION LINES
+
+// EXAMPLE : 13.4 :
+// Page number 366
+clear ; clc ; close ; // Clear the work space and console
+
+// Given data
+R_1 = 60.0 // Surge impedance of underground cable(ohm)
+R_2 = 400.0 // Surge impedance of overhead line(ohm)
+e = 100.0 // Maximum value of surge(kV)
+
+// Calculations
+i = e*1000/R_1 // Current(A)
+k = (R_2-R_1)/(R_2+R_1)
+e_ref = k*e // Reflected voltage(kV)
+e_trans = e+e_ref // Transmitted voltage(kV)
+e_trans_alt = (1+k)*e // Transmitted voltage(kV). Alternative method
+i_ref = -k*i // Reflected current(A)
+i_trans = e_trans*1000/R_2 // Transmitted current(A)
+i_trans_alt = (1-k)*i // Transmitted current(A). Alternative method
+
+// Results
+disp("PART II - EXAMPLE : 13.4 : SOLUTION :-")
+printf("\nReflected voltage at the junction = %.f kV", e_ref)
+printf("\nTransmitted voltage at the junction = %.f kV", e_trans)
+printf("\nReflected current at the junction = %.f A", i_ref)
+printf("\nTransmitted current at the junction = %.f A\n", i_trans)
+printf("\nNOTE: ERROR: Calculation mistake in textbook in finding Reflected current")
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