clear;
clc;
v=3.3e3;
rb=3e6;
r1=1e6;
r2=1.5e6;
x1=10;
x2=20;
X1=x1*rb/r1;
X2=x2*rb/r2;
x=inv(inv(X1)+inv(X2));
kva=rb*100/x;
ish=kva/(1.7388*v);
ish=round(ish);
printf("the value of short circuit current=%dA",ish);