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Transformer currents

Calculate ideal three-phase primary and secondary currents from kVA and voltage ratings.

Ideal three-phase rated currents from kVA and line voltages. Regulation and losses are not evaluated.

min 0.001 · max 10000000

min 1 · max 500000

min 1 · max 500000

Results

Enter inputs above, then tap Calculate.

Method and assumptions

Ideal three-phase rated currents. Voltage regulation is not evaluated.

Check the stated method and limits against your installation. Results are calculation aids, not certification.

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Calculation model 2026-11-02.1