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/CH9/EX9.22/Example9_22.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/CH9/EX9.22/Example9_22.sce')
| -rw-r--r-- | 3472/CH9/EX9.22/Example9_22.sce | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/3472/CH9/EX9.22/Example9_22.sce b/3472/CH9/EX9.22/Example9_22.sce new file mode 100644 index 000000000..2fa8cc8a7 --- /dev/null +++ b/3472/CH9/EX9.22/Example9_22.sce @@ -0,0 +1,46 @@ +// 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 2: CONSTANTS OF OVERHEAD TRANSMISSION LINES
+
+// EXAMPLE : 2.22 :
+// Page number 119
+clear ; clc ; close ; // Clear the work space and console
+
+// Given data
+d = 2.5/100 // Diameter of conductor(m)
+V = 132.0*10**3 // Line voltage(V)
+f = 50.0 // Frequency(Hz)
+h = 4.0 // Height(m)
+H = 8.0 // Height of separation(m)
+D_1_33 = 7.0 // Distance between conductors 1 & 3'(m)
+D_1_22 = 9.0 // Distance between conductors 1 & 2'(m)
+D_1_11 = 8.0 // Distance between conductors 1 & 1'(m)
+D_1 = 1.0 // Distance(m)
+
+// Calculations
+r = d/2 // Radius of conductor(m)
+e = 1.0/(36*%pi)*10**-9 // Constant ε_0
+D_12 = (h**2+D_1**2)**(1.0/2) // Distance between conductors 1 & 2(m)
+D_122 = (h**2+D_1_11**2)**(1.0/2) // Distance between conductors 1 & 2'(m)
+D_111 = (D_1_11**2+D_1_33**2)**(1.0/2) // Distance between conductors 1 & 1'(m)
+D_1_2 = (D_12*D_122)**(1.0/2) // Mutual GMD(m)
+D_2_3 = (D_12*D_122)**(1.0/2) // Mutual GMD(m)
+D_3_1 = (D_1_33*D_1_11)**(1.0/2) // Mutual GMD(m)
+D_eq = (D_1_2*D_2_3*D_3_1)**(1.0/3) // Equivalent GMD(m)
+D_s1 = (r*D_111)**(1.0/2) // Self GMD in position 1(m)
+D_s2 = (r*D_1_22)**(1.0/2) // Self GMD in position 2(m)
+D_s3 = (r*D_111)**(1.0/2) // Self GMD in position 3(m)
+D_s = (D_s1*D_s2*D_s3)**(1.0/3) // Self GMD(m)
+C_n = 2*%pi*e/log(D_eq/D_s) // Capacitance per phase to neutral(F/m)
+X_cn = 1/(2.0*%pi*f*C_n) // Capacitive reactance to neutral(ohms/m)
+V_ph = V/(3**0.5) // Phase voltage(V)
+I_charg = V_ph/X_cn*1000.0 // Charging current per phase(A/km)
+
+// Results
+disp("PART II - EXAMPLE : 2.22 : SOLUTION :-")
+printf("\nCapacitive reactance to neutral, X_cn = %.2e ohms/m", X_cn)
+printf("\nCharging current per phase, I_charg = %.3f A/km", I_charg)
|