If I need to purchase a step-down transformer (from three phase 33kV 50Hz to 40

If I need to purchase a step-down transformer (from three
phase 33kV 50Hz to 400/230V), what additional information do
I need from the main supply power line?

Question Posted / john

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If I need to purchase a step-down transformer (from three phase 33kV 50Hz to 400/230V), what additi..

Answer / subra

Operating voltage primary = 33KV
operating voltage secondary= 400v/230v
capacity of the transformer=?
tap changer =Online or off line
transformer oil cooling sys ONAN or ONAF
vector group=?
Indoor or oudoor tranformer
these are the details to collected

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