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公开(公告)号：US20180315565A1
公开(公告)日：2018-11-01
申请号：US15498808
申请日：2017-04-27
CPC分类号： H01H47/002 , G01R31/3278 , H01H50/14 , H01H50/54 , H02H1/003
摘要： An electrical relay system is configured to allow for failure detection of a relay by injecting a signal at a common contact of the relay and looking for the signal at a normally closed contact of the relay. If the relay is commanded to be “off,” or closed, and the injected signal is not detected through the normally closed contact of the relay, then the system can determine that a failure condition has occurred. In one aspect, the system can include multiple relays with the signal being injected at a common node of the relays. In another aspect, the system can include multiple controllers for controlling and/or monitoring the electrical relay system. The electrical relay system can be coupled to screw terminals for connecting to a field device as part of an industrial automation system.
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公开(公告)号：US20180254379A1
公开(公告)日：2018-09-06
申请号：US15755430
申请日：2016-07-20
申请人： Rohm Co., Ltd.
发明人： Masaaki Nakayama , Tomoya Saito
CPC分类号： H01L33/02 , B60Q1/0408 , H01L33/00 , H02H1/003 , H05B33/0806 , H05B33/0884 , H05B37/02 , Y02B20/341
摘要： Provided is a light-emitting element drive device including a transistor control unit arranged to drive and control a transistor connected to a light-emitting element, an output ground fault detection unit arranged to output an output ground fault detection signal corresponding to the voltage level at a connection node between the light-emitting element and the transistor, a stop control unit arranged to stop driving the transistor when the output ground fault detection signal indicates an output ground fault, and a mask signal generation unit arranged to generate a mask signal that masks the output ground fault detection signal on device startup.
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公开(公告)号：US09983250B2
公开(公告)日：2018-05-29
申请号：US14242271
申请日：2014-04-01
申请人： NEXANS
CPC分类号： G01R31/026 , H02H1/003 , Y04S10/522 , Y10T307/826
摘要： A line break detection system for detecting a break in a conductor (1.004), the system including a first return signal generator (1.020) proximate a first end of a segment of the conductor, the first return signal generator being adapted to apply a first return signal to the conductor, the system including a first return signal detector (1.016) proximate a second end of the segment of the line, the second end being upstream of the first end, the first detector being adapted to receive the first return signal from the line, wherein the first return signal generator ceases to generate the first return signal if the line is broken.
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公开(公告)号：US20170131343A1
公开(公告)日：2017-05-11
申请号：US15413004
申请日：2017-01-23
CPC分类号： G01R31/088 , G01R13/02 , G01R31/08 , G01R31/085 , G01R31/11 , H02H1/003 , H02H1/0092 , H02H7/265 , Y04S10/522
摘要： The present disclosure relates to calculating a fault location in an electric power transmission system based on traveling waves. In one embodiment, a system consistent with the present disclosure may be configured to detect a fault in an electric power transmission system. The system may include a traveling wave detection subsystem configured to detect and measure traveling waves on a transmission line and a fault location estimation subsystem. The fault location estimation subsystem may receive from the traveling wave detection subsystem a first plurality of traveling waves on the transmission line generated during a reference event. The fault location estimation subsystem may receive from the traveling wave detection subsystem a second plurality of traveling waves generated during an unplanned event. An unmatched traveling wave in the second plurality of waves may be detected and a location of the unplanned event based on the unmatched traveling wave.
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5.发明授权Electronic module, electronic arrangement and method for producing an electronic module 有权电子模块，电子装置和电子模块的制造方法公开(公告)号：US09537298B2
公开(公告)日：2017-01-03
申请号：US14129094
申请日：2012-05-21
申请人： Paolo D'Abramo , Luigi Di Piro
发明人： Paolo D'Abramo , Luigi Di Piro
CPC分类号： H02H1/003 , G01R31/026 , G01R31/2818 , G09G2230/00 , H01L21/00 , H02H3/28 , H02M1/00
摘要： An electronic module (100) has a first and a second circuit (200, 300) with respective first and second output connections (230, 330), respective first and second reference potential connections (220, 320), and respective first and second sensing connections (240, 340), each circuit (200, 300) comprising a respective sensing block (250, 350), which at its input side is connected to the respective sensing connection (240, 340) and to the respective reference potential connection (220, 320). The first sensing connection (240) is either connected to the first output connection (230) or to the second output connection (330). The second sensing connection (340) is connected to the second output connection (330). The sensing blocks (250, 350) are configured to detect a failure of the electronic module (100) with respect to its respective reference potential connection (220, 320) and to indicate a detected failure by providing a failure signal at its respective output connection (230, 330).
摘要翻译： 电子模块（100）具有第一和第二电路（200,300），其具有相应的第一和第二输出连接（230,330），相应的第一和第二参考电位连接（220,320）以及相应的第一和第二感测 连接（240,340），每个电路（200,300）包括相应的感测块（250,350），其在其输入侧连接到相应的感测连接（240,340）和相应的参考电位连接 220,320）。 第一感测连接（240）或者连接到第一输出连接（230）或者连接到第二输出连接（330）。 第二感测连接（340）连接到第二输出连接（330）。 感测块（250,350）被配置为相对于其各自的参考电位连接（220,320）检测电子模块（100）的故障，并通过在其各自的输出连接处提供故障信号来指示检测到的故障 （230,330）。
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公开(公告)号：US20160365722A1
公开(公告)日：2016-12-15
申请号：US15173947
申请日：2016-06-06
CPC分类号： H02H7/267 , B60L3/0069 , B60L3/0092 , B60L11/08 , B60L2200/10 , B60L2200/32 , B60L2220/42 , B60L2240/429 , B60L2240/529 , B60L2240/549 , B63H23/24 , B63H23/28 , B64D27/24 , B64D2221/00 , H02H1/003 , H02H1/06 , H02H3/00 , H02H3/021 , Y02T10/646 , Y02T10/70 , Y02T10/7077 , Y02T50/62
摘要： An electric propulsion system is described that includes at least one branch for distributing electrical power, provided by a power source, to one or more loads. The at least one branch is partitioned into one or more zones and comprises a plurality of branch isolation devices that are configured to isolate the at least one branch from the power source in response to a fault current at the at least one branch. In addition, the at least one branch comprises a respective pair of zone isolation devices for each respective zone from the one or more zones. The respective pair of zone isolation devices for each respective zone is configured to isolate the respective zone from the at least one branch, during a test of the at least one branch for identifying which of the one or more zones is a source of the fault current.
摘要翻译： 描述了一种电力推进系统，其包括至少一个用于将由电源提供的电力分配给一个或多个负载的分支。 所述至少一个分支被划分成一个或多个区域并且包括多个分支隔离设备，其被配置为响应于所述至少一个分支处的故障电流将所述至少一个分支与所述电源隔离。 此外，至少一个分支包括用于与一个或多个区域的每个相应区域的相应的一对区域隔离装置。 用于每个相应区域的相应的一对区隔离装置被配置为在至少一个分支的测试期间将相应区域与所述至少一个分支隔离，用于识别所述一个或多个区域中的哪一个是所述故障电流的源 。
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公开(公告)号：US20160276820A1
公开(公告)日：2016-09-22
申请号：US14777998
申请日：2014-03-18
申请人： WIN MS
发明人： Marc OLIVAS , Arnaud PELTIER
CPC分类号： H02H1/0007 , G01R31/11 , H01H9/54 , H02H1/003 , H02H1/0061 , H02H1/0092 , H02H3/17 , H02H3/40 , H02H7/26 , H02H7/261
摘要： The device comprises at least a first part intended to detect an electrical fault occurring in a network and a second part comprising at least one switch connecting the network to a power supply source, the first part comprising at least one reflectometry detection system capable of being coupled with the network, the system detecting and analyzing the impedance changes occurring in the network, a signal being sent by the system to trigger the opening of the switch when a detected impedance change is considered by the system to be an electrical fault.
摘要翻译： 该设备包括至少第一部分，其旨在检测在网络中发生的电故障，第二部分包括至少一个将网络连接到电源的交换机，第一部分包括能耦合的至少一个反射测量检测系统 通过网络，系统检测和分析网络中发生的阻抗变化，当系统认为检测到的阻抗变化被认为是电气故障时，由系统发送的信号触发开关的断开。
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公开(公告)号：US20150276832A1
公开(公告)日：2015-10-01
申请号：US14671390
申请日：2015-03-27
申请人： ABB Technology AG
发明人： Linda JUVONEN , Mikko ROUTIMO
CPC分类号： G01R23/15 , H02H1/003 , H02H3/46 , H02J3/38 , H02J2003/388 , Y10T307/839
摘要： A method for single-phase islanding detection in a three-phase electricity network, can include supplying power into a three-phase electricity network (EN) by a power supply assembly (PSA), the electricity network (EN) having a network voltage, and providing a stimulus signal into a positive sequence electric quantity of the electricity network, the positive sequence electric quantity being current, power or a derived quantity thereof. A magnitude and/or a rate of change of an indicative element of a negative sequence component of the network voltage is monitored, a frequency domain of the indicative element including a frequency corresponding to the stimulus signal. A single phase islanding condition is detected in the electricity network (EN) if the magnitude and/or rate of change of the indicative element exceeds a predetermined limit value.
摘要翻译： 一种用于三相电网中单相孤岛检测的方法，可以包括通过电源组件（PSA）向电力网络（EN）供电，具有网络电压的电网（EN） 并向电网的正序电量提供刺激信号，正序电量为电流，功率或其导出量。 监视网络电压的负序分量的指示元素的幅度和/或变化率，指示元素的频域包括与激励信号对应的频率。 如果指示元件的幅度和/或变化率超过预定极限值，则在电网（EN）中检测到单相孤岛状态。
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公开(公告)号：US09075099B2
公开(公告)日：2015-07-07
申请号：US14002929
申请日：2011-03-03
IPC分类号： G01R31/14 , G01R31/06 , G01R31/34 , H02H3/00 , G01R31/02 , H02H1/00 , H02H3/08 , H02H7/00 , H02H7/08
CPC分类号： G01R31/025 , G01R31/343 , H02H1/003 , H02H3/08 , H02H7/00 , H02H7/0822
摘要： A method for adapting a ground fault detection to a change of an electrical machine condition, wherein the machine includes a winding. The electrical machine is in a first machine condition, a first reference value being defined for measured values of an electrical quantity. The ground fault detection includes continuously measuring the electrical quantity in the winding and detecting a ground fault based on the measured values of the electrical quantity and the first reference value. The method includes receiving a signal, detecting a change of machine condition based on the received signal, and changing to a second reference value for the measured values of the electrical quantity, the second reference value being different from the first reference value when the change of machine condition is detected.
摘要翻译： 一种用于使接地故障检测适应于电机状态变化的方法，其中所述机器包括绕组。 电机处于第一机器状态，为电量的测量值定义第一参考值。 接地故障检测包括连续测量绕组中的电量，并根据电量和第一参考值的测量值检测接地故障。 该方法包括接收信号，基于接收到的信号检测机器状态的变化，并且改变为电量的测量值的第二参考值，当第二参考值与第一参考值不同时，第二参考值不同于第一参考值 检测到机器状况。
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公开(公告)号：US20130335098A1
公开(公告)日：2013-12-19
申请号：US14002929
申请日：2011-03-03
IPC分类号： G01R31/02
CPC分类号： G01R31/025 , G01R31/343 , H02H1/003 , H02H3/08 , H02H7/00 , H02H7/0822
摘要： A method for adapting a ground fault detection to a change of an electrical machine condition, wherein the machine includes a winding. The electrical machine is in a first machine condition, a first reference value being defined for measured values of an electrical quantity. The ground fault detection includes continuously measuring the electrical quantity in the winding and detecting a ground fault based on the measured values of the electrical quantity and the first reference value. The method includes receiving a signal, detecting a change of machine condition based on the received signal, and changing to a second reference value for the measured values of the electrical quantity, the second reference value being different from the first reference value when the change of machine condition is detected.
摘要翻译： 一种用于使接地故障检测适应于电机状态变化的方法，其中所述机器包括绕组。 电机处于第一机器状态，为电量的测量值定义第一参考值。 接地故障检测包括连续测量绕组中的电量，并根据电量和第一参考值的测量值检测接地故障。 该方法包括接收信号，基于接收到的信号检测机器状态的变化，并且改变为电量的测量值的第二参考值，当第二参考值与第一参考值不同时，第二参考值不同于第一参考值 检测到机器状况。
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