Changes to the vibration response of a model power transformer with faults

Y. Wang, Jie Pan

    Research output: Contribution to journalArticle

    Abstract

    Current vibration-based techniques for transformer condition monitoring mostly rely on the vibration response caused by operating excitations, which consist of electrical excitations from the core and winding. Therefore, it is worthwhile to study the electrically-excited frequency response function (FRF), as it carries information of transformer mechanical and electromagnetic properties. This paper includes a sensitivity analysis of the mechanically and electrically excited FRFs of a model transformer to the reasons behind its failures. A model power transformer is used as an example to demonstrate the variation of its vibration response to a couple of causes of transformer faults, such as looseness of clamping forces in winding and core. Experimental evidence is presented to show the quantitative description of the causes of artificial faults and to extract features of variations of FRFs that might be useful to the vibration-based detection of the causes of transformer faults in general.
    Original languageEnglish
    Pages (from-to)478-485
    JournalInternational Journal of Acoustics and Vibrations
    Volume21
    Issue number4
    DOIs
    Publication statusPublished - 2016

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    Power transformers
    transformers
    vibration
    Condition monitoring
    Sensitivity analysis
    Frequency response
    causes
    electromagnetic properties
    sensitivity analysis
    frequency response
    excitation
    mechanical properties

    Cite this

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    title = "Changes to the vibration response of a model power transformer with faults",
    abstract = "Current vibration-based techniques for transformer condition monitoring mostly rely on the vibration response caused by operating excitations, which consist of electrical excitations from the core and winding. Therefore, it is worthwhile to study the electrically-excited frequency response function (FRF), as it carries information of transformer mechanical and electromagnetic properties. This paper includes a sensitivity analysis of the mechanically and electrically excited FRFs of a model transformer to the reasons behind its failures. A model power transformer is used as an example to demonstrate the variation of its vibration response to a couple of causes of transformer faults, such as looseness of clamping forces in winding and core. Experimental evidence is presented to show the quantitative description of the causes of artificial faults and to extract features of variations of FRFs that might be useful to the vibration-based detection of the causes of transformer faults in general.",
    author = "Y. Wang and Jie Pan",
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    language = "English",
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    }

    Changes to the vibration response of a model power transformer with faults. / Wang, Y.; Pan, Jie.

    In: International Journal of Acoustics and Vibrations, Vol. 21, No. 4, 2016, p. 478-485.

    Research output: Contribution to journalArticle

    TY - JOUR

    T1 - Changes to the vibration response of a model power transformer with faults

    AU - Wang, Y.

    AU - Pan, Jie

    PY - 2016

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    N2 - Current vibration-based techniques for transformer condition monitoring mostly rely on the vibration response caused by operating excitations, which consist of electrical excitations from the core and winding. Therefore, it is worthwhile to study the electrically-excited frequency response function (FRF), as it carries information of transformer mechanical and electromagnetic properties. This paper includes a sensitivity analysis of the mechanically and electrically excited FRFs of a model transformer to the reasons behind its failures. A model power transformer is used as an example to demonstrate the variation of its vibration response to a couple of causes of transformer faults, such as looseness of clamping forces in winding and core. Experimental evidence is presented to show the quantitative description of the causes of artificial faults and to extract features of variations of FRFs that might be useful to the vibration-based detection of the causes of transformer faults in general.

    AB - Current vibration-based techniques for transformer condition monitoring mostly rely on the vibration response caused by operating excitations, which consist of electrical excitations from the core and winding. Therefore, it is worthwhile to study the electrically-excited frequency response function (FRF), as it carries information of transformer mechanical and electromagnetic properties. This paper includes a sensitivity analysis of the mechanically and electrically excited FRFs of a model transformer to the reasons behind its failures. A model power transformer is used as an example to demonstrate the variation of its vibration response to a couple of causes of transformer faults, such as looseness of clamping forces in winding and core. Experimental evidence is presented to show the quantitative description of the causes of artificial faults and to extract features of variations of FRFs that might be useful to the vibration-based detection of the causes of transformer faults in general.

    U2 - 10.20855/ijav.2016.21.4443

    DO - 10.20855/ijav.2016.21.4443

    M3 - Article

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