公开(公告)号：US10074973B2

公开(公告)日：2018-09-11

申请号：US15508624

申请日：2015-10-01

申请人： PHOENIX CONTACT GMBH & CO. KG

发明人： Rainer Durth ,  Steffen Pfortner

IPC分类号： H02H9/04 ,  H02H1/00 ,  H02H9/06 ,  H01C7/12 ,  G01R31/12

CPC分类号： H02H9/042 ,  G01R31/1236 ,  G01R31/2827 ,  H01C7/12 ,  H02H1/0007 ,  H02H3/048 ,  H02H9/043 ,  H02H9/06

摘要： The object of the invention is an overvoltage protection apparatus with monitoring function having a parallel circuit of two branch circuits, wherein the first branch circuit has a first overvoltage protection device and a second overvoltage protection device that are connected in series, wherein the second branch circuit has a third device and a fourth device that are connected in series, wherein the first overvoltage device and the third device have a first shared voltage potential during operation, and wherein the second overvoltage device and the fourth device have a second shared voltage potential during operation, wherein a first measuring tap is provided between the first overvoltage protection device and the second overvoltage protection device and wherein a second measuring tap is provided between the third device and the fourth device, with a signal being derived from the voltage between the first measuring tap and the second measuring tap that provides state information in relation to the first overvoltage protection device and the second overvoltage protection device.

公开(公告)号：US20170328936A1

公开(公告)日：2017-11-16

申请号：US15519975

申请日：2016-01-28

申请人： LG CHEM, LTD.

发明人： Mi So PARK ,  Jongmin PARK ,  Hyunchul LEE

IPC分类号： G01R19/165 ,  H01M10/48 ,  G01R31/36 ,  B60L11/18 ,  H02J7/00

CPC分类号： G01R19/16542 ,  G01R31/026 ,  G01R31/2827 ,  G01R31/36 ,  G01R31/3835 ,  G01R31/3842 ,  H01M10/482 ,  H02H3/04 ,  H02J7/00 ,  H02J7/0026

摘要： Disclosed are an apparatus and a method for sensing opening of a current interrupt device (CID) of a battery unit. An apparatus for sensing opening of a current interrupt device of a battery unit according to the present invention is configured to include: a setting unit setting a predetermined voltage section when discharge of one or more battery units starts; a measuring unit measuring a voltage section pass time which is the time when the one or more battery units pass through the predetermined voltage section for each battery unit; and a detecting unit detecting a battery unit in which the current interrupt device (CID) is opened among the one or more battery units and detecting the number of battery cells in which the CID is opened among one or more battery cells included in the battery unit in which the CID is opened based on the voltage section pass time for each battery unit.

公开(公告)号：US20170261558A1

公开(公告)日：2017-09-14

申请号：US15448211

申请日：2017-03-02

申请人： Cooper Technologies Company

发明人： Benjamin Avery Freer

IPC分类号： G01R31/327 ,  H01H9/54

CPC分类号： G01R31/3277 ,  G01R31/2827 ,  H01H9/54 ,  H01H83/04

摘要： A testing circuit assembly can include a first variable resistive load configurable for a range of electrical resistances, where the first variable resistive load is configured to couple to at least one first ground fault circuit interrupter (GFCI) breaker and a current source. The testing circuit assembly can also include a first local controller coupled to the first variable resistive load, where the first local controller controls the first variable resistive load to simulate a range of fault currents, corresponding to the range of electrical resistances, flowing to the at least one first GFCI breaker to determine at least one actual trip point of the at least one first GFCI breaker. Each electrical resistance in the range of electrical resistances can correspond to a fault current in the range of fault currents.

公开(公告)号：US09711960B2

公开(公告)日：2017-07-18

申请号：US14699571

申请日：2015-04-29

申请人： Hamilton Sundstrand Corporation

发明人： Kenneth D. Milkie

IPC分类号： H02H3/22 ,  G01R31/28 ,  H02H9/04 ,  G01R31/02

CPC分类号： H02H3/22 ,  G01R31/024 ,  G01R31/2827 ,  H02H9/041 ,  H02H9/042

摘要： A transient voltage suppressor device includes a transient voltage suppression circuit, a first voltage monitor lead connected to the transient voltage suppression circuit, and a second voltage monitor lead connected to the transient voltage suppression circuit. A voltage injection circuit having a plurality of output voltage levels is also connected to the transient voltage suppression circuit to provide indication via the first and second voltage monitors if the transient voltage suppression circuit is shorted or open.

公开(公告)号：US20170176500A1

公开(公告)日：2017-06-22

申请号：US15123929

申请日：2014-03-06

申请人： Global Lightning Protection Services A/S

发明人： Kim BERTELSEN ,  Thomas Holm KROGH ,  Søren Find MADSEN

IPC分类号： G01R15/14 ,  G01R31/28 ,  G01R15/18

CPC分类号： G01R15/14 ,  F03D80/30 ,  G01R15/181 ,  G01R29/0842 ,  G01R31/2827 ,  Y02E10/721

摘要： A lightning measuring system (LMS) for measuring lightning current parameters in a down conductor (DC) in a wind turbineis disclosed, said lightning measuring system (LMS) comprising—a sensor arrangement (SEA) being arranged to measure on said down conductor (DC), —a data collection unit (DCU), —a connection arrangement (CA) electrically connecting said sensor arrangement (SEA) with said data collection unit (DCU), and—an insulating arrangement (INS), wherein said sensor arrangement (SEA) and at least a part of said connection arrangement (CA) and/or said down conductor (DC) being enclosed in said insulating arrangement (INS) thereby defining—a minimum insulation distance (MID) between said sensor arrangement (SEA) and said down conductor (DC), and—a minimum surface distance (MSD) between an exposed part of said down conductor (DC) not being enclosed by said insulating arrangement (INS) and an exposed part of said connection arrangement (CA) not being enclosed by said insulating arrangement (INS), for which said insulating arrangement (INS) is effective to prevent insulation breakdown between said down conductor (DC) and said sensor arrangement (SEA) and to prevent surface flashover between said exposed part of said down conductor (DC) and said exposed part of said connection arrangement (CA).

公开(公告)号：US09673619B2

公开(公告)日：2017-06-06

申请号：US14258278

申请日：2014-04-22

申请人： PEPPERL + FUCHS GmbH

发明人： Micha Beutel

IPC分类号： H02H9/04 ,  H02H9/06 ,  G01R31/28

CPC分类号： H02H9/042 ,  G01R31/2825 ,  G01R31/2827 ,  H02H9/041 ,  H02H9/06

摘要： The invention relates to a diagnostic method for multiple-stage excess voltage protection apparatuses that include at least one gas discharge distance between an input and a reference potential as a first stage, at least one diode path between an output and the reference potential as a second stage, and at least one decoupling inductance interposed between the input and the output. The diagnostic method is characterized in that a secondary voltage applied to a secondary inductance, which is actively connected, inductively, to the decoupling inductance, is measured and evaluated with a view to excess voltage events in the excess voltage protection apparatus. The invention also relates to a two-stage excess voltage protection apparatus.

公开(公告)号：US20170038784A1

公开(公告)日：2017-02-09

申请号：US15231472

申请日：2016-08-08

申请人： TEXAS INSTRUMENTS INCORPORATED

发明人： Md. Abidur Rahman ,  Sualp Aras ,  Tri Cao Nguyen

IPC分类号： G05F1/571 ,  G01R31/28

CPC分类号： G05F1/571 ,  G01R31/2827 ,  G05F1/569 ,  G05F1/573 ,  H02H3/006 ,  H02H3/08 ,  H02H3/087 ,  H02H3/20 ,  H02H9/02

摘要： A circuit protective system. The system has: (i) an input for sensing an operational voltage responsive to a current flowing through a transistor; (ii) circuitry for applying a forced voltage at the input; (iii) voltage-to-current conversion circuitry for outputting a reference current in response to the forced voltage at the input; (iv) circuitry for providing a reference trim current in response to a trim indicator; and (v) comparison circuitry for outputting a limit signal in response to a comparison of the reference current and the reference trim current.

摘要翻译： 电路保护系统。 该系统具有：（i）用于感测响应于流过晶体管的电流的工作电压的输入; （ii）在输入端施加强制电压的电路; （iii）电压 - 电流转换电路，用于响应于输入处的强制电压输出参考电流; （iv）响应于修剪指示器提供参考修剪电流的电路; 和（v）用于响应于参考电流和参考调整电流的比较来输出限制信号的比较电路。

公开(公告)号：US09397510B2

公开(公告)日：2016-07-19

申请号：US14177386

申请日：2014-02-11

申请人： Aeroflex Plainview, Inc.

发明人： George Altemose ,  Michael Consi

IPC分类号： H02J7/00 ,  G01R31/28 ,  H02H3/20

CPC分类号： H02J7/0031 ,  G01R31/2827 ,  H02H3/207 ,  H02J7/0026

摘要： A system comprises a battery including one or more cells, an energy source, a load, and a battery protection circuit coupled to the battery, the energy source and the load. The circuit determines if the charge of each cell is at/above a predetermined, band gap supplied threshold voltage, which results in disconnecting of the battery from the energy source. The circuit also may determine if the charge of any cell is at/below a second predetermined level, which may result in disconnecting of the battery from the load. The circuit may be radiation-hardened (e.g., via redundancy), through the use of two sets of field effect transistors, two logic gates, two groups of comparator circuits, and two relays. The circuit provides multiply redundant protection comprising: redundantly assessing the overvoltage determination; redundantly triggering battery isolation; and preventing inadvertent isolation and non-charging, occurring absent overvoltage, through redundant first and second relays.

摘要翻译： 系统包括包括一个或多个电池的电池，能量源，负载和耦合到电池，能量源和负载的电池保护电路。 电路确定每个单元的电荷是否在预定的带隙提供的阈值电压以上，这导致电池与能量源的断开。 电路还可以确定任何电池的电荷是否处于/低于第二预定电平，这可能导致电池与负载断开。 电路可以通过使用两组场效应晶体管，两个逻辑门，两组比较器电路和两个继电器来进行辐射硬化（例如，通过冗余）。 该电路提供多重冗余保护，包括：冗余地评估过电压确定; 冗余触发电池隔离; 并通过冗余的第一和第二继电器防止意外的隔离和不充电，不存在过电压。

公开(公告)号：US20160161547A1

公开(公告)日：2016-06-09

申请号：US14564208

申请日：2014-12-09

申请人： ASCO Power Technologies, L.P.

发明人： Louis A. Farquhar, III ,  Michael J. Gerlach

IPC分类号： G01R31/28 ,  G01K13/00 ,  H02H9/00

CPC分类号： G01R31/2827 ,  G01K13/00 ,  H02H1/0007 ,  H02H9/042

摘要： An example method for monitoring the operation of a metal-oxide varistor (MOV) may involve monitoring an operating value of at least one parameter of the MOV using at least one sensor. Further, the method may involve determining, using one or more processors, that a difference between the operating value and a reference value corresponding to the at least one parameter satisfies a predetermined threshold condition corresponding to the at least one parameter. And the method may involve responsive to determining that the difference between the operating value and the reference value satisfies the predetermined threshold condition, transmitting a notification indicative of a potential failure of the MOV to at least one device.

摘要翻译： 用于监测金属氧化物变阻器（MOV）的操作的示例性方法可以包括使用至少一个传感器监视MOV的至少一个参数的操作值。 此外，该方法可以包括使用一个或多个处理器确定操作值与对应于至少一个参数的参考值之间的差异满足与至少一个参数对应的预定阈值条件。 并且该方法可以包括响应于确定操作值和参考值之间的差异满足预定阈值条件，将指示MOV的潜在故障的通知发送到至少一个设备。

公开(公告)号：US09229048B2

公开(公告)日：2016-01-05

申请号：US14024690

申请日：2013-09-12

申请人： Raycap Intellectual Property Ltd.

发明人： Grigoris Kostakis ,  Evaggelia Giannelaki ,  Thomas Tsovilis ,  Zafiris Politis

IPC分类号： G01R31/02 ,  G01R31/08 ,  H02H3/20 ,  H02H9/04 ,  H02H3/00 ,  G01R31/28 ,  H02H9/02 ,  H02H3/093 ,  H03K17/082 ,  G01R31/00

CPC分类号： G01R31/2827 ,  G01R31/001 ,  H02H3/044 ,  H02H3/093 ,  H02H9/021 ,  H03K17/0824

摘要： Devices include an impulse current generator that is configured to provide a direct impulse current (DIC) that includes a specified waveform to a test load during a test duration, a continuous power supply that is configured to provide a continuous power to the test load during the test duration, a trigger circuit that is configured to determine a trigger condition that corresponds to the DIC and to generate a trigger signal responsive to determining the trigger condition, and a current bypass circuit that is configured to receive the trigger signal generated by the trigger circuit and to conduct a majority portion of the DIC being conducted by the load responsive to the trigger signal.

摘要翻译： 设备包括脉冲电流发生器，其被配置为在测试持续时间期间向测试负载提供包括指定波形的直接脉冲电流（DIC），被配置为在测试持续时间期间向测试负载提供连续功率的连续电源 测试持续时间，触发电路，被配置为确定对应于DIC的触发条件并响应于确定触发条件而产生触发信号;以及当前旁路电路，其被配置为接收由触发电路产生的触发信号 并且响应于触发信号，通过负载进行DIC的多数部分。