234 MVA Generator 3 phase Short circuit current Values required? Gen set Rati

234 MVA Generator 3 phase Short circuit current Values
required?
Gen set Rating-234 MVA,
Gen Voltage-18kv,
PF;0.8, Xdv:23.5 %,
Transformer Rating-18/380KV, 680MVA,Yndd1 two winding, Step
up TR, ZT:35.50 %,X/R 4.33
Gen CB Position,
CB open ,Disconnected open,
Generator Running Voltage 18 Kv,
Bi mistakes generator side earth switch Closed during that
time short circuit current level in 3 Phase required, and
how to test on site 234MVA Generator Short circuit current,

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