how to calculate the power rating of a transformer?

Tagged: answer, FAQ, power transformer, question, transformer

This topic has 1 reply, 2 voices, and was last updated 3 months, 2 weeks ago by Przemysław.

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28.03.2026 at 11:57 #7605

Kevin
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how to calculate the power rating of a transformer?

28.03.2026 at 12:18 #7606

Przemysław
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To calculate the power rating of a transformer, you need to consider its primary and secondary voltage and current ratings. The power rating (in watts) can be determined using the formula: Power (P) = Voltage (V) � Current (I). For single-phase transformers, use P = V_primary � I_primary or P = V_secondary � I_secondary. For three-phase transformers, the formula is P = ?3 � V � I. Ensure that the voltage and current are in the same units for accurate calculations.
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