A G1 generator connected in Y (solidly grounded) is connected to bus 3. On the...
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A G1 generator connected in Y (solidly grounded) is connected to bus 3. On the other side of bus 3 the transformer T1 connected in delta-Y (solidly grounded) is connected. The Y-side of T1 connects to bus 1 which in turn connects to bus 2 through a transmission line. On the other side of bar 2 the transformer T2 connected in Y-delta (the Y solidly grounded) is connected. The delta side of T2 is connected to bar 4 that has the other side of generator G2 connected in Y (solidly grounded). The delta side of T2 is connected to bar 4 that has the generator G2 connected in Y (solidly grounded) on the other side. The data in PU for this system are:
A) Draw the monoline diagram B) Find the sequence impedances (Thevenin) for a fault on bus 1. C) For a bolted fault in bus 1 find the fault current in per unit in the following cases: line-to-ground fault, line-to-line fault, line-to-line (double-line) fault to ground
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