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/EX9.19/Example9_19.sce | 36 ++++++++++++++++++++++++++++++++++++ 1 file changed, 36 insertions(+) create mode 100644 3472/CH9/EX9.19/Example9_19.sce (limited to '3472/CH9/EX9.19/Example9_19.sce') diff --git a/3472/CH9/EX9.19/Example9_19.sce b/3472/CH9/EX9.19/Example9_19.sce new file mode 100644 index 000000000..964a14077 --- /dev/null +++ b/3472/CH9/EX9.19/Example9_19.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 : 2.19 : +// Page number 115 +clear ; clc ; close ; // Clear the work space and console + +// Given data +d = 2.6 // Outside diameter of conductor(cm) +D_RY = 8.0 // Spacing between conductor R & Y(m) +D_YB = 8.0 // Spacing between conductor Y & B(m) +D_RB = 16.0 // Spacing between conductor R & B(m) +h = 13.0 // Height of conductor from ground(m) + +// Calculations +r = d/2 // Radius of conductor(m) +e = 1.0/(36*%pi)*10**-9 // Constant ε_0 +h_12 = (D_RY**2+(2*h)**2)**(1.0/2) // Height of conductor 1 & 2(m) +h_23 = h_12 // Height of conductor 2 & 3(m) +h_31 = (D_RB**2+(2*h)**2)**(1.0/2) // Height of conductor 3 & 1(m) +h_1 = 2*h // Height of transposed conductor 1(m) +h_2 = 2*h // Height of transposed conductor 2(m) +h_3 = 2*h // Height of transposed conductor 3(m) +D_eq = (D_RY*D_YB*D_RB)**(1.0/3) // Equivalent distance(m) +h_123 = (h_12*h_23*h_31)**(1.0/3) // Height(m) +h_1_2_3 = (h_1*h_2*h_3)**(1.0/3) // Height(m) +C_n = 2*%pi*e/(log(D_eq*100/r)-log(h_123/h_1_2_3))*1000.0 // Capacitance of conductor A(F/km) + +// Results +disp("PART II - EXAMPLE : 2.19 : SOLUTION :-") +printf("\nCapacitance per phase to neutral of a line, C_n = %.1e F/km", C_n) -- cgit