Vibration transmission from internal structures to the tank of an oil-filled power transformer

    Research output: Contribution to journalArticle

    16 Citations (Scopus)

    Abstract

    © 2016 Elsevier LtdThe vibration of a transformer tank is related to the transformer's noise radiation and health condition. Therefore, it is important to understand the transmission of vibration from internal vibration sources in the windings and core to the transformer tank. The characteristics of this transmission are determined by direct mechanical coupling between the internal structures and the tank, and by indirect coupling through fluid–structure interaction induced by the transformer's cooling oil. In this paper, the transmission of vibration is examined experimentally in a 110-kV power transformer with and without cooling oil. Under respective mechanical and electrical excitations, vibrations of the internal structures and transformer tank are measured simultaneously. The results allow an evaluation of the transmission efficiency of vibration from the internal structures to the tank, and the effects of fluid–structure coupling on the transmission. This experimental work improves understanding of vibration transmission in oil-filled power transformers, and explains the characteristics of a transformer's on-line vibration.
    Original languageEnglish
    Pages (from-to)1-6
    JournalApplied Acoustics
    Volume113
    DOIs
    Publication statusPublished - 2016

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    transformers
    oils
    vibration
    cooling
    electromagnetic noise
    transmission efficiency
    health
    evaluation
    excitation

    Cite this

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    title = "Vibration transmission from internal structures to the tank of an oil-filled power transformer",
    abstract = "{\circledC} 2016 Elsevier LtdThe vibration of a transformer tank is related to the transformer's noise radiation and health condition. Therefore, it is important to understand the transmission of vibration from internal vibration sources in the windings and core to the transformer tank. The characteristics of this transmission are determined by direct mechanical coupling between the internal structures and the tank, and by indirect coupling through fluid–structure interaction induced by the transformer's cooling oil. In this paper, the transmission of vibration is examined experimentally in a 110-kV power transformer with and without cooling oil. Under respective mechanical and electrical excitations, vibrations of the internal structures and transformer tank are measured simultaneously. The results allow an evaluation of the transmission efficiency of vibration from the internal structures to the tank, and the effects of fluid–structure coupling on the transmission. This experimental work improves understanding of vibration transmission in oil-filled power transformers, and explains the characteristics of a transformer's on-line vibration.",
    author = "M. Jin and Jie Pan",
    year = "2016",
    doi = "10.1016/j.apacoust.2016.05.022",
    language = "English",
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    pages = "1--6",
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    }

    Vibration transmission from internal structures to the tank of an oil-filled power transformer. / Jin, M.; Pan, Jie.

    In: Applied Acoustics, Vol. 113, 2016, p. 1-6.

    Research output: Contribution to journalArticle

    TY - JOUR

    T1 - Vibration transmission from internal structures to the tank of an oil-filled power transformer

    AU - Jin, M.

    AU - Pan, Jie

    PY - 2016

    Y1 - 2016

    N2 - © 2016 Elsevier LtdThe vibration of a transformer tank is related to the transformer's noise radiation and health condition. Therefore, it is important to understand the transmission of vibration from internal vibration sources in the windings and core to the transformer tank. The characteristics of this transmission are determined by direct mechanical coupling between the internal structures and the tank, and by indirect coupling through fluid–structure interaction induced by the transformer's cooling oil. In this paper, the transmission of vibration is examined experimentally in a 110-kV power transformer with and without cooling oil. Under respective mechanical and electrical excitations, vibrations of the internal structures and transformer tank are measured simultaneously. The results allow an evaluation of the transmission efficiency of vibration from the internal structures to the tank, and the effects of fluid–structure coupling on the transmission. This experimental work improves understanding of vibration transmission in oil-filled power transformers, and explains the characteristics of a transformer's on-line vibration.

    AB - © 2016 Elsevier LtdThe vibration of a transformer tank is related to the transformer's noise radiation and health condition. Therefore, it is important to understand the transmission of vibration from internal vibration sources in the windings and core to the transformer tank. The characteristics of this transmission are determined by direct mechanical coupling between the internal structures and the tank, and by indirect coupling through fluid–structure interaction induced by the transformer's cooling oil. In this paper, the transmission of vibration is examined experimentally in a 110-kV power transformer with and without cooling oil. Under respective mechanical and electrical excitations, vibrations of the internal structures and transformer tank are measured simultaneously. The results allow an evaluation of the transmission efficiency of vibration from the internal structures to the tank, and the effects of fluid–structure coupling on the transmission. This experimental work improves understanding of vibration transmission in oil-filled power transformers, and explains the characteristics of a transformer's on-line vibration.

    U2 - 10.1016/j.apacoust.2016.05.022

    DO - 10.1016/j.apacoust.2016.05.022

    M3 - Article

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    JO - Applied Acoustics

    JF - Applied Acoustics

    SN - 0003-682X

    ER -