The one-line diagram of a power system is shown below. Line impedances are shown on the one-line diagram. The generators, transformers and the load are rated as follows: Generator 1 (G1) Generator 2 (G2) Transformer 1 (T1) Transformer 2 (T2) Load Draw the impedance diagram and indicate all impedances in per unit. Choose a base of 100 MVA, 20 kV in Generator 1 (G1) side. T1 G1 : 100 VA, 20 kV, X = 0.09 pu : 40 MVA, 18 kV, X = 0.09 pu : 100 MVA, 204/200Y kV, X = 0.16 pu : 60 MVA, 200Y/20A kV, X = 0.2 pu : S = 100 MW+j 50 MVar, at 200 kV ΔΥ j30 Ω j60 Ω j30 Ω Load T2 ΥΔ G2

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The one-line diagram of a power system is shown below. Line impedances are shown on the one-line
diagram. The generators, transformers and the load are rated as follows:
: 100
VA, 20 kV, X = 0.09 pu
: 40 MVA, 18 kV, X = 0.09 pu
Transformer 1 (T1) : 100 MVA, 204/200Y kV, X = 0.16 pu
Transformer 2 (T2)
: 60 MVA, 200Y/20A kV, X = 0.2 pu
Load
: S = 100 MW+j 50 MVar, at 200 kV
Generator 1 (G1)
Generator 2 (G2)
Draw the impedance diagram and indicate all impedances in per unit. Choose a base of 100 MVA,
20 kV in Generator 1 (G1) side.
T1
G1
ΔΥ
j30 Ω
j60 Ω
j30 Ω
Load
T2
ΥΔ
G2
Transcribed Image Text:The one-line diagram of a power system is shown below. Line impedances are shown on the one-line diagram. The generators, transformers and the load are rated as follows: : 100 VA, 20 kV, X = 0.09 pu : 40 MVA, 18 kV, X = 0.09 pu Transformer 1 (T1) : 100 MVA, 204/200Y kV, X = 0.16 pu Transformer 2 (T2) : 60 MVA, 200Y/20A kV, X = 0.2 pu Load : S = 100 MW+j 50 MVar, at 200 kV Generator 1 (G1) Generator 2 (G2) Draw the impedance diagram and indicate all impedances in per unit. Choose a base of 100 MVA, 20 kV in Generator 1 (G1) side. T1 G1 ΔΥ j30 Ω j60 Ω j30 Ω Load T2 ΥΔ G2
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