Question NO 2 (ZU MIRS) Figure 2 shows a power system with all the relevant equipment parameters. Using the information provided: a) Tabulate per unit impedance quantities using 200MVA and 132kV as base values. The voltage just prior to a fault was 1 pu. (9) b) Determine the minimum allowable rupturing capacity (in MVA) for the circuit breaker at D by assuming a 3 phase symmetrical fault to be the worst case. Ignore the fault indicated on busbar A. (7) c) Determine the fault current that would flow for a 3 phase symmetrical fault on busbar A (as shown) when L3 is open circuited. (4) С TE X D 200/33kV 100MVA j13% ja L B L G TI j200 T j100 G 13.8kV 200MVA j12% 13.8/132kV 250MVA j10% j2 13.8/132kV 80MVA j10% 13.8kV 80MVA j13% Fault