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 --- 2642/CH3/EX3.14/Ex3_14.sce | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) create mode 100755 2642/CH3/EX3.14/Ex3_14.sce (limited to '2642/CH3/EX3.14') diff --git a/2642/CH3/EX3.14/Ex3_14.sce b/2642/CH3/EX3.14/Ex3_14.sce new file mode 100755 index 000000000..b585a9279 --- /dev/null +++ b/2642/CH3/EX3.14/Ex3_14.sce @@ -0,0 +1,28 @@ +// FUNDAMENTALS OF ELECTICAL MACHINES +// M.A.SALAM +// NAROSA PUBLISHING HOUSE +// SECOND EDITION + +// Chapter 3 : TRANSFORMER AND PER UNIT SYSTEM +// Example : 3.14 + +clc;clear; // clears the console and command history + +// Given data +E_1 = 500 // secondary induced voltages in V +E_2 = 450 // secondary induced voltages in V +kVA_1 = 100 // kVA ratings of transformer +kVA_2 = 200 // kVA ratings of transformer +Z_1 = 0.05 // impedance of transformer +Z_2 = 0.08 // impedance of transformer + +// caclulations +Z1 =Z_1*E_1/(kVA_1*10^3/E_1) // actual impedance of 1st transformer in ohm +Z2 = Z_2*E_2/(kVA_1*10^3/E_2) // actual impedance of 2nd transformer in ohm +Z = %i*(Z1+Z2) +I_c = (E_1-E_2)/(Z) // value of the circulating current + +// display the result +disp("Example 3.14 solution"); +printf(" \n Value of the circulating current \n I_c = %.3f<%.f A \n", abs(I_c),atand(imag(I_c),real(I_c))); + -- cgit