From 7f60ea012dd2524dae921a2a35adbf7ef21f2bb6 Mon Sep 17 00:00:00 2001 From: prashantsinalkar Date: Tue, 10 Oct 2017 12:27:19 +0530 Subject: initial commit / add all books --- 3472/CH9/EX9.21/Example9_21.sce | 36 ++++++++++++++++++++++++++++++++++++ 1 file changed, 36 insertions(+) create mode 100644 3472/CH9/EX9.21/Example9_21.sce (limited to '3472/CH9/EX9.21/Example9_21.sce') diff --git a/3472/CH9/EX9.21/Example9_21.sce b/3472/CH9/EX9.21/Example9_21.sce new file mode 100644 index 000000000..d69817c35 --- /dev/null +++ b/3472/CH9/EX9.21/Example9_21.sce @@ -0,0 +1,36 @@ +// 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 : 2.21 : +// Page number 118 +clear ; clc ; close ; // Clear the work space and console + +// Given data +d = 2.5/100 // Diameter of conductor(m) +D = 5.0 // Distance of separation(m) +h = 2.0 // Height of separation(m) + +// Calculations +r = d/2 // Radius of conductor(m) +e = 1.0/(36*%pi)*10**-9 // Constant ε_0 +m = (D**2+h**2)**(1.0/2) // (m) +n = (D**2+(h*2)**2)**(1.0/2) // (m) +D_ab = (D*m)**(1.0/2) // Distance between conductor a & b(m) +D_bc = (D*m)**(1.0/2) // Distance between conductor b & c(m) +D_ca = (2*D*h)**(1.0/2) // Distance between conductor c & a(m) +D_eq = (D_ab*D_bc*D_ca)**(1.0/3) // Equivalent GMD(m) +D_s1 = (r*n)**(1.0/2) // Self GMD in position 1(m) +D_s2 = (r*h)**(1.0/2) // Self GMD in position 2(m) +D_s3 = (r*n)**(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)*1000.0 // Capacitance per phase to neutral(F/km) +C_nu = C_n*10.0**6 // Capacitance per phase to neutral(μF/km) + +// Results +disp("PART II - EXAMPLE : 2.21 : SOLUTION :-") +printf("\nCapacitance per phase to neutral, C_n = %.2f μF/km", C_nu) -- cgit