From b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b Mon Sep 17 00:00:00 2001 From: priyanka Date: Wed, 24 Jun 2015 15:03:17 +0530 Subject: initial commit / add all books --- 1820/CH5/EX5.3/Example5_3.sce | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) create mode 100755 1820/CH5/EX5.3/Example5_3.sce (limited to '1820/CH5/EX5.3') diff --git a/1820/CH5/EX5.3/Example5_3.sce b/1820/CH5/EX5.3/Example5_3.sce new file mode 100755 index 000000000..4925188cc --- /dev/null +++ b/1820/CH5/EX5.3/Example5_3.sce @@ -0,0 +1,31 @@ +// ELECTRIC POWER TRANSMISSION SYSTEM ENGINEERING ANALYSIS AND DESIGN +// TURAN GONEN +// CRC PRESS +// SECOND EDITION + +// CHAPTER : 5 : UNDERGROUND POWER TRANSMISSION AND GAS-INSULATED TRANSMISSION LINES + +// EXAMPLE : 5.3 : +clear ; clc ; close ; // Clear the work space and console + +// GIVEN DATA +D = 1.235 ; // Inside diameter of sheath in inch +d = 0.575 ; // Conductor diameter in inch +kv = 115 ; // Voltage in kV +l = 6000 ; // Length of cable in feet +r_si = 2000 ; // specific insulation resistance is 2000 MΩ/1000ft . From Table 5.2 + +// CALCULATIONS +// For case (a) +r_si0 = r_si * l/1000 ; +R_i = r_si0 * log10 (D/d) ; // Total Insulation resistance in MΩ + +// For case (b) +P = kv^2/R_i ; // Power loss due to leakage current in W + +// DISPLAY RESULTS +disp("EXAMPLE : 5.3 : SOLUTION :-") ; +printf("\n (a) Total insulation resistance at 60 degree F , R_i= %.2f MΩ \n",R_i) ; +printf("\n (b) Power loss due to leakage current , V^2/R_i = %.4f W \n",P) ; + +printf("\n NOTE : ERROR : Mistake in textbook case (a) \n") ; -- cgit