From 7f60ea012dd2524dae921a2a35adbf7ef21f2bb6 Mon Sep 17 00:00:00 2001 From: prashantsinalkar Date: Tue, 10 Oct 2017 12:27:19 +0530 Subject: initial commit / add all books --- 3793/CH10/EX10.6/exp_10_6.sce | 60 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 60 insertions(+) create mode 100644 3793/CH10/EX10.6/exp_10_6.sce (limited to '3793/CH10/EX10.6') diff --git a/3793/CH10/EX10.6/exp_10_6.sce b/3793/CH10/EX10.6/exp_10_6.sce new file mode 100644 index 000000000..e0b2e8bf7 --- /dev/null +++ b/3793/CH10/EX10.6/exp_10_6.sce @@ -0,0 +1,60 @@ +clear; +clc; +Sb=30; +vb=11; +sg=20; +p=10; +R=6.6; +//generator +X1=complex(0,.1); +X2=complex(0,.1); +X0=complex(0,.15); +x1=X1*(Sb/sg); +x2=X2*(Sb/sg); +x0=X0*(Sb/sg); +//transformer12 +xt1=complex(0,.12); +xt2=complex(0,.12); +xt0=complex(0,.12); +//transmission line +vtr=22; +Ztr=vtr^2/Sb; +Z=complex(1,5); +Zpu=Z/Ztr; +//transformer34 +Xt1=complex(0,.05); +Xt2=complex(0,.05); +Xt0=complex(0,.05); +xtt1=Xt1*(Sb/sg); +xtt2=Xt2*(Sb/sg); +xtt0=Xt0*(Sb/sg); +Vf3=1; +Rpu=((Vf3^2)*Sb)/p; +Rf=(R*Sb)/vtr^2; +Il=p/Sb; +Vf4=Vf3+(Il*xtt1); +Zfp=((x1+xt1+Zpu)*(Rpu+xtt1))/(x1+xt1++Zpu+Rpu+xtt1); +Zfn=Zfp; +zf0=Zpu+xt1; +Ia1=Vf3/complex(1.611,1.5); //from figure +Ia0=Ia1; +Ia=3*Ia1; +Va0=-zf0*Ia0; +Va1=Vf3-(Zfn*Ia1); +Va2=-(Zfn*Ia1); +Ibase=(Sb*1000)/(sqrt(3)*vtr); +If=Ibase*Ia; +mprintf("fault current is %f%f A \n",real(If),imag(If)); +a=complex(-.5,.866); +A=[1 1 1;1 a^2 a;1 a a^2]; +V1=[Va0;Va1;Va2]; +V=A*V1; +Vab=V(1,1)-V(2,1); +Vbc=V(2,1)-V(3,1); +Vca=V(3,1)-V(1,1); +mprintf("Actual Line Voltages are Vab=%f+%f Kv Vbc=%f%f Kv Vca=%f+%f Kv",real(Vab),imag(Vab),real(Vbc),imag(Vbc),real(Vca),imag(Vca)); + + + + + -- cgit