Ultra-wide bandwidth measurement of partial discharge current pulses in SF6

Alistair Reid, Martin D. Judd

    Research output: Contribution to journal › Article

    Abstract

    This paper presents ultra-wide bandwidth measurements of partial discharge (PD) current pulses. Using a 33 GHz bandwidth oscilloscope together with a direct, matched coaxial connection to the PD source, pulses have been characterized with a greater degree of accuracy than has previously been achieved, with a minimum observed rise time of 24 ps. The PD source consists of a sharp protrusion in pressurized sulfur hexaflouride (SF6) with a tip radius of 25 µm. Both positive and negative corona pulses were recorded, revealing previously indistinguishable frequency content and features such as the appearance of groups of multiple component pulses occurring within a nanosecond time scale.
    Original languageEnglish
    Article number165203
    JournalJournal of Physics D: Applied Physics
    Volume45
    Issue number16
    DOIs
    Publication statusPublished - Apr 2012

    Fingerprint

    Partial discharges
    bandwidth
    Bandwidth
    pulses
    Sulfur
    oscilloscopes
    coronas
    sulfur
    radii

    Keywords

    • ultra-wide bandwidth
    • systems and sensors
    • corona pulses

    Cite this

    Reid, Alistair ; Judd, Martin D. / Ultra-wide bandwidth measurement of partial discharge current pulses in SF6. In: Journal of Physics D: Applied Physics. 2012 ; Vol. 45, No. 16.
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    abstract = "This paper presents ultra-wide bandwidth measurements of partial discharge (PD) current pulses. Using a 33 GHz bandwidth oscilloscope together with a direct, matched coaxial connection to the PD source, pulses have been characterized with a greater degree of accuracy than has previously been achieved, with a minimum observed rise time of 24 ps. The PD source consists of a sharp protrusion in pressurized sulfur hexaflouride (SF6) with a tip radius of 25 µm. Both positive and negative corona pulses were recorded, revealing previously indistinguishable frequency content and features such as the appearance of groups of multiple component pulses occurring within a nanosecond time scale.",
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    Reid, A & Judd, MD 2012, 'Ultra-wide bandwidth measurement of partial discharge current pulses in SF6', Journal of Physics D: Applied Physics, vol. 45, no. 16, 165203. https://doi.org/10.1088/0022-3727/45/16/165203

    Ultra-wide bandwidth measurement of partial discharge current pulses in SF6. / Reid, Alistair; Judd, Martin D.

    In: Journal of Physics D: Applied Physics, Vol. 45, No. 16, 165203, 04.2012.

    Research output: Contribution to journal › Article

    TY - JOUR

    T1 - Ultra-wide bandwidth measurement of partial discharge current pulses in SF6

    AU - Reid, Alistair

    AU - Judd, Martin D.

    PY - 2012/4

    Y1 - 2012/4

    N2 - This paper presents ultra-wide bandwidth measurements of partial discharge (PD) current pulses. Using a 33 GHz bandwidth oscilloscope together with a direct, matched coaxial connection to the PD source, pulses have been characterized with a greater degree of accuracy than has previously been achieved, with a minimum observed rise time of 24 ps. The PD source consists of a sharp protrusion in pressurized sulfur hexaflouride (SF6) with a tip radius of 25 µm. Both positive and negative corona pulses were recorded, revealing previously indistinguishable frequency content and features such as the appearance of groups of multiple component pulses occurring within a nanosecond time scale.

    AB - This paper presents ultra-wide bandwidth measurements of partial discharge (PD) current pulses. Using a 33 GHz bandwidth oscilloscope together with a direct, matched coaxial connection to the PD source, pulses have been characterized with a greater degree of accuracy than has previously been achieved, with a minimum observed rise time of 24 ps. The PD source consists of a sharp protrusion in pressurized sulfur hexaflouride (SF6) with a tip radius of 25 µm. Both positive and negative corona pulses were recorded, revealing previously indistinguishable frequency content and features such as the appearance of groups of multiple component pulses occurring within a nanosecond time scale.

    KW - ultra-wide bandwidth

    KW - systems and sensors

    KW - corona pulses

    U2 - 10.1088/0022-3727/45/16/165203

    DO - 10.1088/0022-3727/45/16/165203

    M3 - Article

    VL - 45

    JO - Journal of Physics D: Applied Physics

    JF - Journal of Physics D: Applied Physics

    SN - 0022-3727

    IS - 16

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    ER -

    Reid A, Judd MD. Ultra-wide bandwidth measurement of partial discharge current pulses in SF6. Journal of Physics D: Applied Physics. 2012 Apr;45(16). 165203. https://doi.org/10.1088/0022-3727/45/16/165203

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