EEET2339 Power System Analysis and Control
Task:
Part 1
Taking the rated power of generators G1 & G2 as the base power, and the transformer T1 lowvoltage side rated voltage as the base voltage, calculate the Thevanin’s equivalent zero-sequence impedance, positive sequence impedance and the negative sequence impedance viewed from Bus-E. Specify your answers in per-unit.
Part 2
Assuming the pre-fault bus voltages are at 1.03 pu, calculate the fault currents in each phase for a three-phase balanced fault at Bus-E. Specify your answers in per-unit.
Part 3
Assuming the pre-fault bus voltages are at 1.03 pu, calculate the fault currents in each phase for a single-line to ground fault at Bus-E. Specify your answers in per-unit.
Part 4
Assuming the pre-fault bus voltages are at 1.03 pu, calculate the fault currents in each phase for a line-to-line fault at Bus-E. Specify your answers in per-unit.
Part 5
Assuming the pre-fault bus voltages are at 1.03 pu, calculate the fault currents in each phase for a line-to-line-to-ground fault at Bus-E. Specify your answers in per-unit.
Faulted bus (Bus-E) voltage calculation:
Part 6
Calculate the Bus-E phase voltages for the condition in part-3, single-line to ground fault at BusE. Specify your answers in per-unit.
Part 7
Calculate the Bus-E phase voltages for the condition in part-4, line-to-line fault at Bus-E.Specify your answers in per-unit.
Part 8
Calculate the Bus-E phase voltages for the condition in part-5, line-to-line-to-ground at Bus-E. Specify your answers in per-unit.
