Answer Posted / ariel

Line voltage = 2 * phase voltage * sin 180/ no. of phase

say 1 phase, 230v, what is the 3 phase voltage

line voltage = 2 * 230 * sin 180/3 = 400v
1.732 = 2*sin180/n

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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