while doing the excitation current test on power transformer what is the value

while doing the excitation current test on power
transformer what is the value of voltage to be applied?
Nomonal rated voltage or 10% of rated voltage? Is it
necessary to apply on high voltage side?

Question Posted / cdymansoor

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while doing the excitation current test on power transformer what is the value of voltage to be ap..

Answer / guna

we have to apply three phase voltage only..bcoz,for
transformer rated voltage is 220kv not 230v.we can check in
l.v side also.

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