Question B4 a) Single line diagram of a three bus power system is given in Figure B4.1. Each generator is represented by an emf behind the transient reactance. All impedances are expressed in per unit...

Extracted text: Question B4 a) Single line diagram of a three bus power system is given in Figure B4.1. Each generator is represented by an emf behind the transient reactance. All impedances are expressed in per unit on a common 100 MVA base. Consider all generators are running at their rated voltage and rated frequency with their emf in phase. Determine the fault current, the bus voltages and line currents during the fault when a balanced three phase fault with a fault impedance Zf= 0.16 per unit occurs at bus 2. jo.1 jo.2 jo.1 jo.2 j0.6 jo.4 j0.4 3 Figure B4.1 2.