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/CH10/EX10.12/Example10_12.sce | 38 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 38 insertions(+) create mode 100644 3472/CH10/EX10.12/Example10_12.sce (limited to '3472/CH10/EX10.12') diff --git a/3472/CH10/EX10.12/Example10_12.sce b/3472/CH10/EX10.12/Example10_12.sce new file mode 100644 index 000000000..590f1de8c --- /dev/null +++ b/3472/CH10/EX10.12/Example10_12.sce @@ -0,0 +1,38 @@ +// 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 3: STEADY STATE CHARACTERISTICS AND PERFORMANCE OF TRANSMISSION LINES + +// EXAMPLE : 3.12 : +// Page number 143 +clear ; clc ; close ; // Clear the work space and console + +// Given data +E_s = 275.0 // Sending end voltage(kV) +f = 50.0 // Frequency(Hz) +l = 400.0 // Line length(km) +x = 0.05 // Inductive reactance(ohm/km) +y = 3.0*10**-6 // Line charging susceptance(S/km) +r = 0.0 // Lossless line + +// Calculations +// Case(a) +R = r*l // Total resistance(ohm/phase) +X = x*l // Inductive reactance(ohm/phase) +Y = y*l // Susceptance(mho) +Z = complex(R,X) // Total impedance(ohm/phase) +A = 1+(Y*Z/2)*%i // Line constant +E_r = E_s/abs(A) // Receiving end voltage at no load(kV) +// case(b) +Z_0 = (X/Y)**0.5 // Load at receiving end(ohm) +// Case(c) +Z_0_new = 1.2*Z_0 // New load at receiving station(ohm) + +// Results +disp("PART II - EXAMPLE : 3.12 : SOLUTION :-") +printf("\nCase(a): Receiving end voltage on open circuit = %.1f kV", E_r) +printf("\nCase(b): Load at receiving end for flat voltage profile on line, Z_0 = %.1f Ω", Z_0) +printf("\nCase(c): Distributed inductive reactance of the line is to be increased as, Loading for new voltage profile = %.2f Ω", Z_0_new) -- cgit