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How is the capacity (kVA of 120V power available) of the Center-Tap of a Delta - Center Tapped Delta Transformer calculated?

Issue:
Center tap capacity of a Center Tapped delta secondary

Product Line:
LV Transformers

Environment:
Applies to Transformers by SquareD/Schneider Electric

Cause:
Center tap capacity must be calculated from the overall kVA capacity of the Transformer

Resolution:

The capacity of a Center Tapped Delta Transformer`s secondary Center Tap is calculated at 5% of the Transformer`s overall nameplate kVA capacity. For example, if the Transformer is an EX75T6HCT, which is a 75kVA 240/120V Three Phase Delta secondary device, the 120V center tap loading capacity is 5% of 75kVA, or 3.75kVA.

CTA-ID : 2026730

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