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Engineering calculator

Transformer full-load current

Rated current on each winding of a three-phase transformer.

Inputs

Results

Primary FLC
52.49A
Secondary FLC
1,333.37A

I = S / (√3 × V)

Assumptions

  • Balanced three-phase load
  • Nameplate (ONAN) rating

Limitations

  • Does not account for tap position, cyclic or emergency ratings

References: IEC 60076-1 · AS 60076.1

Provided for general information. Gridlinks Solutions accepts no liability for decisions made using this calculator without independent engineering verification.

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