The admittance Matrix (YBUS) and ZBUS for a 5-bus network are shown in Fig. 2, below. The pre-fault voltage is 1.0 pu (per unit). Carry out the following. a) b) c) Using the YBUS, draw the network 2marks for 2 generators with their correct admittance values, 3 marks for 6 branches with admittance values, Total 5 marks Calculate the 3 ph fault current for a fault at each bus, Calculate the post fault voltage at each bus for a fault at bus 2. d) Determine the Fault current contribution from only the 3 connected buses for a fault at bus 2 e) Write a short report showing the above results in tabular form where applicable. Solve the problem, using formula provided in the formula sheet. 12 -1417 26 6.0 1.67 2.5-10.0 5.0 2.6 5.0 -18.33 0.0 1.07 5.0 2.6 0.0 0.0 5.0 YBUS 0.0 -4.17 5.0 0.0 5.0 0.0 0.0 -10.0 0.1258 0.0780 00445 0.0072 0.0852 0.0780 01928 0.0732 01468 0.0756 0.0445 0.0732 0.0033 03617 0.0080 00972 01468 00017 3668 0.029 0.0852 0.0256 0.000 0.0794 0.1770 ZBUS Figure 2. VBUS and ZBUS Marks 5 Marks 2.5 Marks 2.5 Marks 3 Marks 3