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 --- 2441/CH5/EX5.24/Ex5_24.sce | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) create mode 100755 2441/CH5/EX5.24/Ex5_24.sce (limited to '2441/CH5/EX5.24') diff --git a/2441/CH5/EX5.24/Ex5_24.sce b/2441/CH5/EX5.24/Ex5_24.sce new file mode 100755 index 000000000..ac0085ca4 --- /dev/null +++ b/2441/CH5/EX5.24/Ex5_24.sce @@ -0,0 +1,28 @@ +//Example 5.24 +clc;clear;close; +format('v',6); +Z=3+%i*9;//%///impedence +Z=Z/100;//p.u.///Impedence +I=1;//p.u. +IZ=Z;//p.u. +disp("Part(a)"); +//2*I^2-2*cos(del)=[abs(IZ)]^2 +cos_del=acosd((2*I^2-[abs(IZ)]^2)/2);//degree +disp(cos_del,"Phase angle between two station(degree)"); +angle_abc=87.277;///degree +theta=180-angle_abc-atand(imag(IZ)/real(IZ));//degree +Preal=I^2*cosd(theta);//p.u. +disp(Preal,"Real power transfer(p.u.)"); +Preactive=I^2*sind(theta);//p.u. +disp(Preactive,"Reactive power transfer(p.u.)"); +disp("Part(b)"); +//1.05^2+1^2-2*1.05*cos(del)=[abs(IZ)]^2 +cos_del=acosd((1.05^2+1^2-[abs(IZ)]^2)/2/1.05);//degree +disp(cos_del,"Phase angle between two station(degree)"); +angle_dbc=60.53;///degree +theta=atand(imag(IZ)/real(IZ))-angle_dbc//degree +Preal=I^2*cosd(theta);//p.u. +disp(Preal,"Real power transfer(p.u.)"); +Preactive=I^2*sind(theta);//p.u. +disp(Preactive,"Reactive power transfer(p.u.)"); +//Answer in the textbook is not accurate. -- cgit