公开(公告)号：US20190222017A1

公开(公告)日：2019-07-18

申请号：US16361468

申请日：2019-03-22

Applicant: Hubbell Incorporated

Inventor： William Vernon Miller, III ,  Gary Michael Miller

IPC: H02H1/00

CPC classification number: H02H1/0015 ,  G01R31/1227 ,  G01R31/1272 ,  H01H9/50 ,  H01H2083/201 ,  H02H1/0092

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.

公开(公告)号：US09557365B2

公开(公告)日：2017-01-31

申请号：US14202940

申请日：2014-03-10

Applicant: Hubbell Incorporated

Inventor： Gary Michael Miller

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

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.

Abstract translation: 公开了使用音频数据检测电晕的装置，系统和方法。 一种处理音频数据以检测电晕的方法包括确定音频数据中基本上基本频率的能量指示符，确定音频数据中多个谐波频率处的能量的指标，确定噪声能量的指标 音频数据，确定相对于谐波频率的能量的噪声能量的比较指示符，确定具有相对于基本频率的每个谐波的阈值的掩蔽指示符，以及确定电晕检测指示符。 一种用于检测电晕的装置包括存储器，被配置为获得AC系统中的电导体附近的音频数据的音频检测器，以及用于处理音频数据，音频数据的基频和谐波频率及其对应阈值的处理器以检测 电晕

公开(公告)号：US09366688B2

公开(公告)日：2016-06-14

申请号：US14046186

申请日：2013-10-04

Applicant: Hubbell Incorporated

Inventor： Gary Michael Miller

IPC: G01F1/68 ,  G01P5/10

CPC classification number: G01P5/10 ,  G01P1/026 ,  H02G7/04

Abstract: Systems and methods for determining an effective wind speed are disclosed. A system includes a first detector, a second detector and a processing unit. The first detector includes a heated temperature-sensing element having a heater and a first temperature sensor, and a first housing at least partially housing the heated temperature-sensing element. The second detector includes a non-heated temperature-sensing element having a second temperature sensor, a second housing at least partially housing the non-heated temperature-sensing element. The processing unit can be adapted to determine the effective wind speed according to a temperature at the heated temperature-sensing element, a temperature at the non-heated temperature-sensing element, and/or a difference between these temperatures and in accordance with an algorithm or table of values. The heated and non-heated temperature-sensing elements and their respective first housing and second housing are collinear, proximal and parallel to the conductor, and protected from precipitation by a shield.

Abstract translation: 公开了用于确定有效风速的系统和方法。 系统包括第一检测器，第二检测器和处理单元。 第一检测器包括具有加热器和第一温度传感器的加热温度感测元件，以及至少部分地容纳加热的温度感测元件的第一壳体。 第二检测器包括具有第二温度传感器的非加热温度感测元件，至少部分地容纳非加热温度感测元件的第二壳体。 处理单元可以适于根据加热的温度感测元件处的温度，非加热温度感测元件处的温度和/或这些温度之间的差异来确定有效风速，并且根据算法 或价值表。 加热和未加热的温度感测元件及其相应的第一壳体和第二壳体是共线的，近端的并且平行于导体，并且被防护罩防止沉淀。