REF.: MVA Method Short Circuit Calculation
MVAsc @ 33KV = 1/ (1 / 91.92 + 1 /111.11) = 50.3 MVA To determine the Faults Current at any bus on the power system, add the MVA values above and below the arrows. The sum should be the same on any branch. Example: 11 KV Bus: From Transformer 1: MVAsc = 76.87 + 91.92 = 168.79 MVA From Generator : MVAsc = 35.4 + 133.39 = 168.79 MVA
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