We know that bus 4 in a power system has a voltage of 1.04 pu when a three phase fault occurs. The Thevenin reactance looking from bus 4 to the rest of the system is 0.3 pu; Find the fault current at bus 4.
Added by Sheila R.
Step 1
This is because during a fault, the voltage drop across the reactance is equal to the voltage at the bus. So, the fault current I_f can be calculated as: I_f = V_bus / X_Thevenin Show more…
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