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公开(公告)号：US20220357396A1
公开(公告)日：2022-11-10
申请号：US17869537
申请日：2022-07-20
申请人： Hubbell Incorporated
摘要： Passive monitoring the integrity of current sensing devices and associated circuitry in GFCI and AFCI protective devices is provided. A protection circuit interrupter employs a capacitively coupled noise signal obtained by an arrangement of one or both of 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 compensated by subtracting the reference noise cycle prior to monitoring for the fault condition applicable to the protective device.
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2.发明申请公开(公告)号：US20180321318A1
公开(公告)日：2018-11-08
申请号：US15528223
申请日：2015-11-19
申请人： Hubbell Incorporated
IPC分类号： G01R31/327 , H02H3/16 , H02H1/00 , H02H3/33 , H02H3/28
摘要： 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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3.发明公开公开(公告)号：US20230349974A1
公开(公告)日：2023-11-02
申请号：US18141221
申请日：2023-04-28
申请人： Hubbell Incorporated
CPC分类号： G01R31/3277 , G01R35/00 , H02H1/0015 , H02H3/16 , H02H3/28 , H02H3/331 , H02H3/335
摘要： Passive monitoring the integrity of current sensing devices and associated circuitry in GFCI and AFCI protective devices is provided. A protection circuit interrupter employs a capacitively coupled noise signal obtained by an arrangement of one or both of 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 compensated by subtracting the reference noise cycle prior to monitoring for the fault condition applicable to the protective device.
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公开(公告)号：US20210344185A1
公开(公告)日：2021-11-04
申请号：US17377762
申请日：2021-07-16
申请人： HUBBELL INCORPORATED
发明人： Gary Michael MILLER
摘要： 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.
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5.发明申请公开(公告)号：US20170038406A1
公开(公告)日：2017-02-09
申请号：US15178989
申请日：2016-06-10
申请人： Hubbell Incorporated
发明人： Gary Michael MILLER
摘要： 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.
摘要翻译： 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。
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6.发明公开公开(公告)号：US20240272225A1
公开(公告)日：2024-08-15
申请号：US18582205
申请日：2024-02-20
申请人： Hubbell Incorporated
CPC分类号： G01R31/3277 , G01R35/00 , H02H1/0015 , H02H3/16 , H02H3/28 , H02H3/331 , H02H3/335
摘要： Passive monitoring the integrity of current sensing devices and associated circuitry in GFCI and AFCI protective devices is provided. A protection circuit interrupter employs a capacitively coupled noise signal obtained by an arrangement of one or both of 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 compensated by subtracting the reference noise cycle prior to monitoring for the fault condition applicable to the protective device.
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公开(公告)号：US20230121656A1
公开(公告)日：2023-04-20
申请号：US17993170
申请日：2022-11-23
申请人： HUBBELL INCORPORATED
发明人： Gary Michael MILLER
摘要： 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.
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8.发明申请公开(公告)号：US20200264234A1
公开(公告)日：2020-08-20
申请号：US16797152
申请日：2020-02-21
申请人： Hubbell Incorporated
摘要： 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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公开(公告)号：US20200052478A1
公开(公告)日：2020-02-13
申请号：US16657714
申请日：2019-10-18
申请人： HUBBELL INCORPORATED
发明人： Gary Michael MILLER
摘要： 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.
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公开(公告)号：US20140278158A1
公开(公告)日：2014-09-18
申请号：US14206093
申请日：2014-03-12
申请人： HUBBELL INCORPORATED
发明人： Gary Michael MILLER
IPC分类号： G01R31/02
摘要： 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.
摘要翻译： 公开了用于检测和识别电弧的系统和方法。 检测电弧的方法包括获得指示电压的数据和表示电流的数据，根据指示电流的数据确定主要负载电流的周期的波形，根据确定的周期波形确定至少一个噪声信号 的主要负载电流和指示电流的数据，根据时间窗确定噪声信号的概率密度，并将噪声信号的概率密度与至少一个模型概率密度进行比较。
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