A 50 Hz alternator is rated 500 MVA, 20 kV, with Xd = 1.0 per unit and X"d = 0.2 per unit.
It supplies a purely resistive load of 400 MW at 20 kV.
The load is connected directly across the generator terminals when a symmetrical fault occurs at the load terminals.
The initial rms current in the generator in per unit is
A. 7.22
B. 6.4
C. 3.22
D. 2.2
Show Answer
Answer: C
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