From 8ac15bc5efafa2afc053c293152605b0e6ae60ff Mon Sep 17 00:00:00 2001 From: Siddharth Agarwal Date: Tue, 3 Sep 2019 18:27:40 +0530 Subject: Xcos examples from textbooks and for blocks --- Working_Examples/154/CH12/EX12.5/ch12_5.sce | 63 +++++++++++++++++++++++++++++ 1 file changed, 63 insertions(+) create mode 100755 Working_Examples/154/CH12/EX12.5/ch12_5.sce (limited to 'Working_Examples/154/CH12/EX12.5') diff --git a/Working_Examples/154/CH12/EX12.5/ch12_5.sce b/Working_Examples/154/CH12/EX12.5/ch12_5.sce new file mode 100755 index 0000000..d24df03 --- /dev/null +++ b/Working_Examples/154/CH12/EX12.5/ch12_5.sce @@ -0,0 +1,63 @@ +clc +disp("Example 12.5") +printf("\n") + +printf("Given") +disp("The system ABC is DELTA connected") +disp("Maximum line voltage is 339.4V") +disp("The three impedances are 10(0 deg),10(30 deg),15(-30 deg)") + +ZABmag=10;ZABph=0; +ZBCmag=10;ZBCph=30; +ZCAmag=15;ZCAph=-30; +//Let maximum line voltage is Vmax +Vmax=339.4 +//From fig 12.7(a) +//VAB=Vmax(120 deg) +//VBC=Vmax(0 deg) +//VCA=Vmax(240 deg) + +//From figure 12.15 +IABmag=Vmax/ZABmag +IABph=120-ZABph +printf("IAB=%3.2f(%d deg)\n",IABmag,IABph); + +IBCmag=Vmax/ZBCmag +IBCph=0-ZBCph +printf("IBC=%3.2f(%d deg)\n",IBCmag,IBCph); + +ICAmag=Vmax/ZCAmag +ICAph=240-ZCAph +printf("ICA=%3.2f(%d deg)\n",ICAmag,ICAph); + +//Applying KCL equation +//IA=IAB+IAC +//IB=IBC+IBA +//IC=ICA+ICB + +x=IABmag*cos((IABph*%pi)/180); +y=IABmag*sin((IABph*%pi)/180); +z=complex(x,y) + +x1=ICAmag*cos((ICAph*%pi)/180); +y1=ICAmag*sin((ICAph*%pi)/180); +z1=complex(x1,y1) + +x2=IBCmag*cos((IBCph*%pi)/180); +y2=IBCmag*sin((IBCph*%pi)/180); +z2=complex(x2,y2) + +IA=z-z1; +[RA,ThetaA]=polar(IA) + +IB=z2-z; +[RB,ThetaB]=polar(IB) + +IC=z1-z2 +[RC,ThetaC]=polar(IC) + +disp("Therefore") + +printf("\nIA=%3.2f(%d deg)A\n",RA,ThetaA*(180/%pi)); +printf("\nIB=%3.2f(%d deg)A\n",RB,ThetaB*(180/%pi)); +printf("\nIC=%3.2f(%d deg)A\n",RC,ThetaC*(180/%pi)); \ No newline at end of file -- cgit