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Symmetrical Fault Current Calculations - UNLV
Symmetrical fault current calculations The per-unit voltage on the high-voltage side of the transformer is 120,000 1.044 pu 115,000 actual value V pu base value Thevenin equivalent circuit: Vth = 1.044 pu Zth = j0.28 pu Short circuit current (pu) Isc = Vth/Zth = 3.73 pu Base current on the high voltage side: Ibase = 502 A Short circuit current (A):
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