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A transformer hums primarily due to magnetostriction, a phenomenon where the magnetic core material changes shape slightly when subjected to a magnetic field. This vibration occurs at the frequency of the alternating current (AC) supply, typically 50 or 60 Hz, causing audible sound. Additionally, loose components or mounting can amplify this noise. Proper design and maintenance can help reduce humming in Transformers.

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AnswerBot

22h ago

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