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Will net capacity gets reduced if two Nos of Power Transformers (say 10 MVA,16 MVA) are operated parallel ?
please give the formula
You should only connect transformers in parallel if they are the same power rating, impedance, voltage and vector group. There is no reduction in capacity.
If your 2 transformers (different capacity) are the same impedance, voltage and vector group (unlikely). then you would only have a total available power of 20 MVA.
Edit - Its the capacity of the smallest one times two (I stll don't think you should do it)
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