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/CH10/EX10.1/Ex10_1.sce | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) create mode 100755 2642/CH10/EX10.1/Ex10_1.sce (limited to '2642/CH10/EX10.1') diff --git a/2642/CH10/EX10.1/Ex10_1.sce b/2642/CH10/EX10.1/Ex10_1.sce new file mode 100755 index 000000000..f10336aec --- /dev/null +++ b/2642/CH10/EX10.1/Ex10_1.sce @@ -0,0 +1,30 @@ +// FUNDAMENTALS OF ELECTICAL MACHINES +// M.A.SALAM +// NAROSA PUBLISHING HOUSE +// SECOND EDITION + +// Chapter 10 : SYNCHRONOUS MOTOR +// Example : 10.1 + +clc;clear; // clears the console and command history + +// Given data +V = 2.5*10^3 // supply voltage in V +R_r = 0.12 // per phase resistance in ohm +X_r = 3.2 // syncronous reactance in ohm +I_a = 185 // line current in A +pf = 0.8 // leading power factor + +// caclulations +phi = acosd(pf) +V_t = V/sqrt(3) // terminal voltage per phase in V +Z_s = R_r+%i*X_r // impedance per phase ohm +beta = atand(X_r/R_r) +E_r = I_a*Z_s // resultant voltage due to impedance in V +E_f = sqrt(V_t^2+abs(E_r)^2-2*V_t*abs(E_r)*cosd(beta+phi)) // excitation voltage per phase in V + + +// display the result +disp("Example 10.1 solution"); +printf(" \n Excitation voltage per phase \n E_f = %.2f V \n", E_f ); + -- cgit