solve quesiton on paper 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: Generator1(G1)Generator2(G2)Transformer1(T1)Transformer2(T2)Load:100MVA,20kV,X=0.09pu:40MVA,18kV,X=0.09pu:100MVA,20/200YkV,X=0.

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solve quesiton on paper

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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:

Generator 1 (G 1) Generator 2 (G 2) Transformer 1 (T 1) Transformer 2 (T 2) Load : 100 MVA, 20 kV, X = 0.09 pu : 40 MVA, 18 kV, X = 0.09 pu : 100 MVA, 20Δ/200 Y kV, X = 0.16 pu : 60 MVA, 200 Y /20Δ kV, X = 0.2 pu : S = 100 MW + j 50 MVar, at 200 kV

Draw the impedance diagram and indicate all impedances in per unit. Choose a base of

100

MVA,

20 kV

in Generator 1 (G1) side.

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