Calssical model of the simpliest power energy system, which is used to study the basics of transient processes.
0 s: start;
30 s: three-phase short-circuit in node_1;
30.1 s: end of short-circuit, disconnection one of the two circuits of the Line_1;
35.1 s: automatic reclosing of the Line_1 circuit ;
50 s: end.