Transformer rating=> 15/20 MVA.Why there are two raings? What should be the

Transformer rating=> 15/20 MVA.Why there are two raings? What
should be the rating of the fuse at the secondary if the
voltage level is 13.8KV/4.16KV?

Question Posted / jibu tom

1 Answers
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Transformer rating=> 15/20 MVA.Why there are two raings? What should be the rating of the fuse ..

Answer / k.prakashchandra

15 MVA for one type of cooling and 20 for a better cooling
method.e.g. ON AN and ON AF or OF AF.Current is too high to
use fuses on LT side

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