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/CH9/EX9.7/Ex9_7.sce | 35 +++++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) create mode 100755 2642/CH9/EX9.7/Ex9_7.sce (limited to '2642/CH9/EX9.7') diff --git a/2642/CH9/EX9.7/Ex9_7.sce b/2642/CH9/EX9.7/Ex9_7.sce new file mode 100755 index 000000000..f69245998 --- /dev/null +++ b/2642/CH9/EX9.7/Ex9_7.sce @@ -0,0 +1,35 @@ +// FUNDAMENTALS OF ELECTICAL MACHINES +// M.A.SALAM +// NAROSA PUBLISHING HOUSE +// SECOND EDITION + +// Chapter 9 : SYNCHRONOUS GENERATOR +// Example : 9.7 + +clc;clear; // clears the console and command history + +// Given data +P = 10 // number of poles +m = 3 // number of phase +f = 50 // frequency in Hz +phi_m1 = 0.05 // flux per pole in Wb +phi_m3 = 0.006 // flux per pole in Wb +T_c = 150 // coil + +// caclulations +T_p = 3*3 // pole pitch interms of slots 3 slots per pole per phase hence for 3 phase +slots_1 = 180/T_p // pole pitch per slots +y = 180-T_c // short pitch angle +n = 3 // number of slots +k_p1 = cosd(y/2) // pitch factor +k_d1 = sind((n*slots_1)/2)/(n*sind(slots_1/2)) // distribution factor +E_1 = 4.44*k_p1*k_d1*f*phi_m1*T_c // induced voltage in V +k_p3 = cosd(y/2) // pitch factor +k_d3 = sind((n*slots_1)/2)/(n*sind(slots_1/2)) // distribution factor +E_3 = 4.44*k_p3*k_d3*f*phi_m3*T_c // induced voltage in V +E = sqrt(E_1^2+E_3^2) // induced voltage per phase in V + +// display the result +disp("Example 9.7 solution"); +printf(" \n Induced voltage per phase is \n E = %.0f V \n", E ); + -- cgit