Problem 2: Equipment ratings and per-unit reactances for the system shown below are given as follows: G1 GI G2 10.03 Syn

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Problem 2 Equipment Ratings And Per Unit Reactances For The System Shown Below Are Given As Follows G1 Gi G2 10 03 Syn 1 (85.88 KiB) Viewed 36 times

Problem 2: Equipment ratings and per-unit reactances for the system shown below are given as follows: G1 GI G2 10.03 Synchronous generators: 100 MVA 100 MVA 434 TI T2 Transformers: 100 MVA 100 MVA Transmission lines. TL12 100 MVA TL13 100 MVA TL23 100 MVA 25 kV 13.8 kV TL13 230 kV 230 kV 230 kV 3 25/230 kV 13.8/230 kV TL12 X₁ X₂ = 0.2 X₁ X₂ = 0.2 X, X₁ X₁ TL23 X, X, X₁ X₂ X₂ = 0.1 X₂ = 0.1 X₂ = 0.1 N 38 X₁ = 0.05 X₁ = 0.05 X, = 0.05 X, = 0.05 X, = 0.3 X, = 0.3 X, = 0.3 10.03 Using a 100-MVA, 230-kV base for the transmission lines, draw the per unit sequence networks and reduce them to their Thévenin equivalents "looking in" at bus 3. Neglect A-Y phase shifts. Compute the fault currents for a bolted three-phase fault at bus 3. G2