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    • 5. 发明申请
    • METHODS, SYSTEMS, AND APPARATUS AND FOR DETECTING PARALLEL ELECTRICAL ARC FAULTS
    • 方法,系统和装置以及检测并联电弧故障
    • WO2012125238A3
    • 2013-03-14
    • PCT/US2012024403
    • 2012-02-09
    • SIEMENS INDUSTRY INCMIKANI VASKENAYAK AMIT
    • MIKANI VASKENAYAK AMIT
    • H02H1/00H02H3/33H02H3/44
    • H02H1/0015G01R31/1227G01R31/14G01R31/2825H02H3/044H02H3/33H02H3/335H02H3/44
    • In one aspect, a method for detecting arc faults with a dynamically-changeable slope threshold is disclosed. The method may include monitoring a current waveform to determine a peak amplitude of a half cycle and a slope at a zero crossing of a half cycle. An arc fault counter may be incremented if the maximum amplitude of the half cycle and the slope at a zero crossing are greater than a preset magnitude threshold level and the dynamically-changeable slope threshold, respectively. In another aspect, a decay of the amplitude of a predetermined number of half cycles of the current waveform is measured and an arc counter is not incremented, even if the conditions would otherwise indicate an arc counter increment, when the decay is above a decay threshold for greater than a predetermined number of half cycles. An arc fault detection apparatus adapted to carry out the methods, and systems including the arc fault detection apparatus are disclosed, as are various other aspects.
    • 一方面,公开了一种用动态可变斜率阈值检测电弧故障的方法。 该方法可以包括监视电流波形以确定半周期的峰值幅度和半周期过零点的斜率。 如果半周期的最大幅度和过零点处的斜率分别大于预设的幅度阈值电平和动态可变斜率阈值,则电弧故障计数器可以递增。 在另一方面,测量当前波形的预定数量的半周期的振幅的衰减,并且即使条件否则表示电弧计数器增量,当衰减高于衰减阈值时,电弧计数器也不递增 大于预定数量的半周期。 公开了适用于执行方法的电弧故障检测装置和包括电弧故障检测装置的系统,以及各种其它方面。
    • 10. 发明申请
    • ELECTRICAL EVENT DETECTION DEVICE AND METHOD OF DETECTING AND CLASSIFYING ELECTRICAL POWER USAGE
    • 电气事件检测装置及其检测和分类电力用途的方法
    • WO2011139715A2
    • 2011-11-10
    • PCT/US2011/033992
    • 2011-04-26
    • BELKIN INTERNATIONAL, INC.PATEL, Shwetak, N.REYNOLDS, Matthew, S.GUPTA, SidhantYOGEESWARAN, Karthik
    • PATEL, Shwetak, N.REYNOLDS, Matthew, S.GUPTA, SidhantYOGEESWARAN, Karthik
    • G01R31/00
    • G01R19/0007G01R19/2513G01R21/133G01R22/10G01R31/2825Y04S20/38
    • Some embodiments can concern an apparatus configured to detect an electrical state of one or more electrical devices. The one or more electrical devices are coupled to an electrical power infrastructure and generate one or more high-frequency electrical signals on the electrical power infrastructure. The apparatus can include: (a) a processing module configured to run on a processor of a computational unit; and (b) a sensing device configured to be coupled to an electrical outlet. The sensing device can have: (a) a data acquisition receiver configured to receive the one or more high-frequency electrical signals via the electrical outlet and convert the one or more high-frequency electrical signals into one or more first data signals when the sensing device is coupled to the electrical outlet. The electrical outlet can be electrically coupled to the electrical power infrastructure. The sensing device is in communication with the computational unit. The processing module is further configured to identify the electrical state of the one or more electrical devices at least in part using the one or more first data signals. The high-frequency electrical signals comprise electrical signals in the ten kilohertz to three megahertz range. Other embodiments are disclosed.
    • 一些实施例可以涉及被配置为检测一个或多个电气设备的电气状态的设备。 一个或多个电气设备耦合到电力基础设施并且在电力基础设施上产生一个或多个高频电信号。 该装置可以包括:(a)处理模块,被配置为在计算单元的处理器上运行; 和(b)被配置为联接到电源插座的感测装置。 感测装置可以具有:(a)数据采集接收器,被配置为经由电源插座接收一个或多个高频电信号,并且当感测时将一个或多个高频电信号转换成一个或多个第一数据信号 设备耦合到电源插座。 电源插座可以电连接到电力基础设施。 感测装置与计算单元通信。 处理模块还被配置为至少部分地使用一个或多个第一数据信号来识别一个或多个电气设备的电状态。 高频电信号包括十千赫兹至三兆赫范围内的电信号。 公开了其他实施例。