how to calculate power factor of transformer?

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

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

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26.03.2026 at 19:58 #7401

Tiburcio Santamaría-Arévalo
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how to calculate power factor of transformer?

26.03.2026 at 20:18 #7402

Luis Ángel
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To calculate the power factor of a transformer, you need to determine the real power (P) in watts and the apparent power (S) in volt-amperes (VA). The power factor (PF) is then calculated using the formula: PF = P / S. Measure the real power using a wattmeter and the apparent power can be calculated by multiplying the voltage (V) and current (I) on the transformer’s primary or secondary side: S = V � I.
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