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Problem 2: Equipment ratings and per-unit reactances for the system shown below are given as follows: G1 G1 G2 j0.03 4 T
Posted: Fri Jul 08, 2022 6:23 am
by answerhappygod
- Problem 2 Equipment Ratings And Per Unit Reactances For The System Shown Below Are Given As Follows G1 G1 G2 J0 03 4 T 1 (145.72 KiB) Viewed 36 times
Problem 2: Equipment ratings and per-unit reactances for the system shown below are given as follows: G1 G1 G2 j0.03 4 T1 Synchronous generators: 100 MVA 100 MVA TI T2 Transformers: 100 MVA 100 MVA 1 Transmission lines: TL12 100 MVA TL13 100 MVA TL23 100 MVA 25 kV 13.8 kV 230 kV 230 kV 230 kV TL13 3 TL12 25/230 kV 13.8/230 kV TL23 X₁ X₂ = 0.2 X₁ X₂ = 0.2 2 X₁ X₂ = 0.1 X₁ X₂ = 0.1 = X₁ X₂ = 0.1 T2 b A X₁ = 0.05 X₁ = 0.05 X₁ = X₂ = Xo = 0.05 X₁ = X₂ = Xo = 0.05 Xo = 0.3 Xo = 0.3 Xo = 0.3 O jo.03 G2 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.