For the five-bus network shown in Figure 9.25, a bolted single-line-toground fault occurs at the bus 2 end of the transmission line between buses 1 and 2. The fault causes the circuit breaker at the bus 2 end of the line to open, but all other breakers remain closed. The fault is shown in Figure 9.26. Compute the subtransient fault current with the circuit breaker at the bus- 2 end of the faulted line open. Neglect prefault current and assume a prefault voltage of 1.0 per unit.

Figure 9.25

Figure 9.26

1.0/0 + j0.1111 j0.168 j0.126 j0.126 ell j0.210 000 j0.252 4 j0.336 heeeteee j0.1333 1.0/0 LOele