Answer / brandon peña

When you use a delta connection, any harmonics coming from that side are caught inside the delta. In reality, transformers used in electrical networks use the secondary winding with a delta connection since most of the harmonics come from load sources, which are connected to the secondary of all transformers. This way ensures the distribution networks don't get overloaded with harmonics.

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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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