Transformer in-rush
Transformer in-rush
(OP)
How do I determine the affect of in-rush current on two parallel 6.6KV 2MVA generators from 2 x 2MVA and 2 x 1MVA transformers. The generators will be up to speed before attempting to take any load and the four transformers mentioned will have minimal load ie <10%.






RE: Transformer in-rush
If you are planning of fast changeover, ther is no need to woory about inrush. If you are energising one transformer at a time, then also you should not have any concern.
In any case, it is advisable to keep the generator excitation in "Voltage control" mode before connecting/transferring the transformer.
RE: Transformer in-rush
RE: Transformer in-rush
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May be useful.