xfmr question

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nizak

Senior Member
Would the output amperage of a 45KVA xfmr wired at 480V primary be 216A with a 208/120 secondary?
 

bob

Senior Member
Location
Alabama
That would be correct for a single phase transformer. For a 3 phase trannsformer it would be 125 amps.
 

raider1

Senior Member
Staff member
Location
Logan, Utah
I am assuming that by 208/120 volt secondary that you have a 3 phase transformer.

The amperage on the secondary of a 3 phase 208/120 volt 45 KVA transformer is 125 amps. (45,000/208 x 1.73)

Chris
 
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