Figure 3 shows the one-line diagram of a three-bus power system with generation at bus X. The magnitude of voltage at bus X is adjusted to 1.05 per unit. The scheduled loads at buses Y & Z are as on the diagram. Line impedances are marked in per unit on a 100 MVA base. i. Determine the bus voltages. Calculate branch current and power flow after 1

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Figure 3 shows the one-line diagram of a three-bus power system with generation at
bus X. The magnitude of voltage at bus X is adjusted to 1.05 per unit. The scheduled
loads at buses Y & Z are as on the diagram. Line impedances are marked in per unit on
a 100 MVA base.
i.
Determine the bus voltages. Calculate branch current and power flow after 1
iteration for branch X-Y, X-Z and Y-Z. You must show all equations formulated
and used in the calculations.
Transcribed Image Text:Figure 3 shows the one-line diagram of a three-bus power system with generation at bus X. The magnitude of voltage at bus X is adjusted to 1.05 per unit. The scheduled loads at buses Y & Z are as on the diagram. Line impedances are marked in per unit on a 100 MVA base. i. Determine the bus voltages. Calculate branch current and power flow after 1 iteration for branch X-Y, X-Z and Y-Z. You must show all equations formulated and used in the calculations.
Y
0.01+j0.02
10x10 +j5x10° VA
G
0.02+j0.04
0.03+j0.04
120 MW+j30MVAr
Figure 3: Transmission System Network for Sepang
Transcribed Image Text:Y 0.01+j0.02 10x10 +j5x10° VA G 0.02+j0.04 0.03+j0.04 120 MW+j30MVAr Figure 3: Transmission System Network for Sepang
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