0.15 70.2 Q1) [8 Marks] Consider the 4-bus power system impedance diagram as shown in the figure:...

0.15 70.2 Q1) [8 Marks] Consider the 4-bus power system impedance diagram as shown in the figure: a) Determine the admittance matrix (Ybus). [1 Mark x 6 = 6 Marks] 104 ;02 b) Determine the voltages at the busses (Vbus). [1 Mark x 2 = 2 Marks] ;0.1 ;0.1 LO 1.5 G ME 1.IZIO 0.92-22