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    SYSTEMS AND METHODS FOR DETECTING AND IDENTIFYING ARCING BASED ON NUMERICAL ANALYSIS
    2.
    发明申请
    SYSTEMS AND METHODS FOR DETECTING AND IDENTIFYING ARCING BASED ON NUMERICAL ANALYSIS 有权

    公开(公告)号：US20220385056A1

    公开(公告)日：2022-12-01

    申请号：US17831977

    申请日：2022-06-03

    Applicant: Hubbell Incorporated

    Inventor： William Vernon MILLER, III ,  Gary Michael Miller

    IPC: H02H1/00 ,  G01R31/12 ,  A47B21/03 ,  A61G12/00 ,  A61G13/10 ,  F16G11/12 ,  F16M11/04 ,  F16M11/10 ,  F16M11/20 ,  F16M11/24 ,  F16M13/02

    Abstract: Method and system allowing more accurate detection and identification of unwanted arcing include novel processing of signal voltage representing recovered power-line current. In one implementation, arc-faults are detected based on numerical analysis where individual cycles of line voltage and current are observed and data collected during each cycle is processed to estimate likelihood of presence of arc-event within each individual cycle based on pre-defined number of arc-events occurring within pre-defined number of contiguous cycles. In another implementation, fast transient current spikes detection can be done by: computing difference values between consecutive line-current samples collected over a cycle, average of differences, and peak-to-peak value of line-current; comparing each difference value to average of difference; comparing each difference value to peak-to-peak value; and, based on calculation of composite of two comparisons, using thresholds to determine if arcing is present within processed cycle.

    Systems and methods for detecting and identifying arcing based on numerical analysis
    3.
    发明授权
    Systems and methods for detecting and identifying arcing based on numerical analysis 有权

    公开(公告)号：US10243343B2

    公开(公告)日：2019-03-26

    申请号：US14675012

    申请日：2015-03-31

    Applicant: Hubbell Incorporated

    Inventor： William Vernon Miller, III ,  Gary Michael Miller

    IPC: H02H1/00 ,  G01R31/12 ,  H01H83/20

    Abstract: Method and system allowing more accurate detection and identification of unwanted arcing include novel processing of signal voltage representing recovered power-line current. In one implementation, arc-faults are detected based on numerical analysis where individual cycles of line voltage and current are observed and data collected during each cycle is processed to estimate likelihood of presence of arc-event within each individual cycle based on pre-defined number of arc-events occurring within pre-defined number of contiguous cycles. In another implementation, fast transient current spikes detection can be done by: computing difference values between consecutive line-current samples collected over a cycle, average of differences, and peak-to-peak value of line-current; comparing each difference value to average of difference; comparing each difference value to peak-to-peak value; and, based on calculation of composite of two comparisons, using thresholds to determine if arcing is present within processed cycle.

    Apparatuses, systems and methods for detecting corona
    4.
    发明授权
    Apparatuses, systems and methods for detecting corona 有权

    公开(公告)号：US09897643B2

    公开(公告)日：2018-02-20

    申请号：US15418980

    申请日：2017-01-30

    Applicant: Hubbell Incorporated

    Inventor： Gary Michael Miller

    IPC: H04R29/00 ,  G01R31/12 ,  G01R31/14

    CPC classification number: G01R31/1209 ,  G01R31/14 ,  H04S2400/11

    Abstract: Apparatuses, systems and methods for detecting corona using audio data are disclosed. A method of processing audio data to detect corona includes determining an indicator of energy at a substantially fundamental frequency in the audio data, determining an indicator of the energy at a plurality of harmonic frequencies in the audio data, determining an indicator of the noise energy in the audio data, determining a comparison indicator of the noise energy relative to the energy at the harmonic frequencies, determining a masking indicator having thresholds for each of the harmonics relative to the fundamental frequency, and determining a corona detection indicator. An apparatus for detecting corona includes a memory, an audio detector configured to obtain the audio data near an electrical conductor in an AC system, and a processor to process the audio data, fundamental and harmonic frequencies of the audio data and their corresponding thresholds to detect corona.

    Systems and methods for detecting and identifying arcing
    7.
    发明授权
    Systems and methods for detecting and identifying arcing 有权

    公开(公告)号：US11522353B2

    公开(公告)日：2022-12-06

    申请号：US17377762

    申请日：2021-07-16

    Applicant: HUBBELL INCORPORATED

    Inventor： Gary Michael Miller

    IPC: H02H1/00 ,  G01R31/14

    Abstract: Systems and methods for detecting and identifying arcing are disclosed. A method of detecting arcing includes obtaining data indicative of voltage and data indicative of current, determining a waveform of a cycle of a primary load current according to the data indicative of current, determining at least one noise signal according to the determined waveform of a cycle of the primary load current and the data indicative of current, determining a probability density of the noise signal according to a time window, and comparing the probability density of the noise signal with at least one model probability density.

    CORONA DETECTION USING AUDIO DATA
    8.
    发明申请
    CORONA DETECTION USING AUDIO DATA 有权

    公开(公告)号：US20220353612A1

    公开(公告)日：2022-11-03

    申请号：US17867901

    申请日：2022-07-19

    Applicant: Hubbell Incorporated

    Inventor： Gary Michael Miller ,  Bernard Chenault Crutcher ,  Gaylord Zahlman

    IPC: H04R3/00 ,  G01R31/00 ,  G01R31/12 ,  G01H3/06 ,  G10K11/178 ,  H04R1/32

    Abstract: Systems, methods, and apparatus for corona detection using audio data are provided. In one example embodiment, the method includes obtaining, by one or more computing devices, audio data indicative of audio associated with an electrical system for at least one time interval. The method includes partitioning, by the one or more computing devices, the audio data for the time interval into a plurality of time windows. The method includes determining, by the one or more computing devices, a signal indicative of a presence of corona based at least in part on audio data collected within an identified time window of the plurality of time windows relative to audio data collected for a remainder of the time interval.

    Apparatuses and methods for passive fault monitoring of current sensing devices in protective circuit interrupters
    9.
    发明授权
    Apparatuses and methods for passive fault monitoring of current sensing devices in protective circuit interrupters 有权

    公开(公告)号：US10591546B2

    公开(公告)日：2020-03-17

    申请号：US15528223

    申请日：2015-11-19

    Applicant: Hubbell Incorporated

    Inventor： Gary Michael Miller ,  William Vernon Miller, III ,  Edward Shi Chen

    IPC: H02H3/16 ,  H02H1/00 ,  H02H3/33 ,  G01R31/327 ,  G01R35/00 ,  H02H3/28

    Abstract: Apparatuses and methods for passively monitoring the integrity of current sensing devices and associated circuitry in protective devices such as Ground Fault Circuit Interrupters and Arc Fault Circuit Interrupters are provided. A protection circuit interrupter employs a capacitively coupled noise signal obtained by an arrangement of one or both of the line side arms relative to a Rogowski coil. The noise signal is monitored while the line and load sides of a protective circuit interrupter are disconnected, and the connection of the line and load sides disabled if the noise signal fails to correlate sufficiently to a reference noise cycle. When the line and load sides are connected, the RMS value of the observed current signal is monitored such that the line and load sides are disconnected if the observed current signal fails to meet an RMS threshold. The observed current signal is otherwise compensated by subtracting the reference noise cycle prior to monitoring for the fault condition applicable to the protective device.

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