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  • When the transformer is overloaded it makes a sound what is that sound and why?

    Marwano

    Member

    Updated: Oct 22, 2024
    Views: 648
    When the transformer is overloaded it makes a sound what is that sound and why?
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Replies

  • Reya

    Member • Jan 8, 2012

    I think this is due to high current in transformer windings which causes the windings to vibrate and thus it produces the sound.

    Correct me if i am wrong!
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  • Kaustubh Katdare

    Administrator • Jan 8, 2012

    I miss my electrical engineering days (and knowledge as well 😨) but it could be because of the vibrations of the steel plates used in the core of the windings.
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  • er.h3m4l

    Member • Jan 8, 2012

    Biggie thats true shot...!!!
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  • born_star16

    Member • Jan 8, 2012

    The_Big_K
    I miss my electrical engineering days (and knowledge as well 😨) but it could be because of the vibrations of the steel plates used in the core of the windings.
    Perfect!!!!!!!!!!!!!!
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  • Marwano

    Member • Jan 8, 2012

    Thank u all guys
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  • aarthivg

    Member • Jan 9, 2012

    In transformers, the physical reaction force between primary and secondary windings when heavily loaded. If the secondary winding is open-circuited, there will be no current through it, and consequently no magneto-motive force produced by it. However, when the secondary is loaded, the winding generates an mmf, which becomes counteracted by a reflected mmf in the primary winding to prevent core flux levels from changing. These opposing mmf's generated between primary and secondary windings as a result of secondary current produce a repulsive, physical force between the windings which will tend to make them vibrate. Transformer designers have to consider these physical forces in the construction of the winding coils, to ensure there is adequate mechanical support to handle the stresses. Under heavy load conditions, though, these stresses may be great enough to cause audible noise to emanate from the transformer.
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