Draw the sequence network connection for this slg fault

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Reference no: EM134027419

Problem

A three-phase, 60 Hz, 13.8 kV (line-to-line) generator supplies a radial system. The generator is solidly grounded and unloaded at the time of the fault. The following per-unit sequence impedances (on a 20 MVA, 13.8 kV base) are given: Positive-sequence impedance: 1 = 0.25 pu Negative-sequence impedance: 2 = 0.25 pu Zero-sequence impedance: 0 = 0.10 pu Assume the pre-fault phase voltage is: prefault = 1∠0° pu A bolted single line-to-ground (SLG) fault occurs on phase A at the generator terminals (fault impedance = 0). Get the instant assignment help. Draw the sequence network connection for this SLG fault and write the expression for the fault current in per-unit. Calculate the sequence currents 0, 1, 2 in per-unit.

Reference no: EM134027419

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