Problem-4: Solve at Home Problem-4, Cont... The one-line diagram of a simple three-bus power system is shown in Figure-4. represented by an emf behind the sub-transient reactance. All impedances are expressed in per unit on a common MVA base. All resistances and shunt capacitances are neglected. The generators are operating on no load at their rated voltage with their emfs in phase. A three-phase fault occurs at bus 3 through a fault impedance of Z = j0.19 per unit. (a) Using Th'evenin's theorem obtain the impedance to the point of fault and the fault current in per unit. (b) Determine the bus voltages Each generator is j0.05 j0.075 j0.75 j0.30 j0.45 3 Figure-4: Single Line Diagram

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Three Phase Induction Motor

The induction motor is an electric motor that runs on AC (alternating current) and it is of two type single phase motor that work on single-phase power supply and three-phase motor that work on three-phase power supply.