Transformer buzzing noise

Home Electrical Engineering Forum General Discussion Transformer buzzing noise

  • This topic has 2 replies, 2 voices, and was last updated 9 years ago by Anonymous.
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  • #10893
    rikesh
    Participant

    Hello,

     

    I have an electric reclining sofa from DFS (UK). It works perfectly well, but the transformer sporadically emits a constant buzzing noise. I have found that a gentle slap cures the problem – but eventually the noise returns again.

     

    How do I sort this out?

     

    Many thanks

    #13182
    Anonymous
    Guest

    I presume the transformer core used in the transformer is made up of E & I combination of laminates.

    1. Get some tools and tighten all the screws that holds the core laminates together.  The buzzing sound signify the core laminates are loose and are vibrating.

    2. it is also possible to coat or revarnish the transformer core with some clear lacquer varnish. 

    #13209
    Anonymous
    Guest

    I would agree with what the guest has said above. it is either the screws loose or the laminating going off. try to do the above and keep us informed if it solved your problem.

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