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 --- 3681/CH5/EX5.14/Ex5_14.sce | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) create mode 100644 3681/CH5/EX5.14/Ex5_14.sce (limited to '3681/CH5/EX5.14/Ex5_14.sce') diff --git a/3681/CH5/EX5.14/Ex5_14.sce b/3681/CH5/EX5.14/Ex5_14.sce new file mode 100644 index 000000000..a5e47dcf7 --- /dev/null +++ b/3681/CH5/EX5.14/Ex5_14.sce @@ -0,0 +1,20 @@ +// Calculating the per unit leakage reactance +clc; +disp('Example 5.14, Page No. = 5.90') +// Given Data +// 2000/400 V, single phase shell type transformer +Q = 100;// kVA rating +f = 50;// Frequency (in Hz) +u0 = 4*%pi*10^(-7); +Tp = 200;// h.v winding turns +Lmt = 1.5;// Length of mean turn (in meter) +W = 0.12;// Width of winding (in meter) +a = 0.016;// Width of duct between h.v and l.v. windings (in meter) +bp = 0.04;// Width of h.v. winding (in meter) +bs = 0.036;// Width of l.v. winding (in meter) +// Calculation of the per unit leakage reactance +Xp = %pi*f*u0*Tp*Tp/2*Lmt/W*(a+(bp+bs)/6);// Leakage reactance referred to the primary side (ohm) +I_hv = Q*10^(3)/2000;// H.V. winding current at full load (in ampere) +Xp_pu = Xp*I_hv/2000;// Per unit leakage reactance +disp(Xp_pu,'Per unit leakage reactance='); +//in book answer is 0.0353. The answers vary due to round off error -- cgit