(Solved): Consider the system shown in the single-line diagram of Figure (3). The required reactances in per ...

Consider the system shown in the single-line diagram of Figure (3). The required reactances in per unit to the same base are as follows: ${\mathrm{G}}_1$ $\begin{array}{l}{X}_1=0.25\\ X_1=0.2\\ X_{T1}=0.04\\ X_{T2}=0.05\\ X_{12}=0.10\\ X_{13}=0.12\end{array}$ Consider the case of a balanced three phase fault at bus 3 . Determine the current through line 1-2 in per unit. [20 Points] Figure (3) Single line diagram for Problem 5