3-Phase Imbalance Calculator (Voltage or Current)

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3-Phase Imbalance Calculator

Enter A/B/C values (either voltage or current). Outputs NEMA-style % imbalance using average deviation method.

Phase A

Phase B

Phase C

Average

—

Mean of A/B/C.

% Imbalance

—

(Max deviation ÷ average) × 100

Flag

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Rule-of-thumb: sustained high imbalance can cause heat and reduced equipment life.