Protection, monitoring or indication apparatus for a direct current electrical generating apparatus or a plurality of strings
    1.
    发明授权
    Protection, monitoring or indication apparatus for a direct current electrical generating apparatus or a plurality of strings 有权
    用于直流发电装置或多个串的保护,监视或指示装置

    公开(公告)号:US08837097B2

    公开(公告)日:2014-09-16

    申请号:US12795032

    申请日:2010-06-07

    摘要: A protection apparatus is for a direct current electrical generating apparatus. The protection apparatus includes a first terminal; a second terminal; a third terminal; a fourth terminal; at least one current sensor structured to sense current flowing between the first and second terminals or between the third and fourth terminals; a voltage sensor structured to sense a voltage between the first terminal and the third terminal; at least one switch structured to interrupt the current flowing between the first and second terminals or between the third and fourth terminals; and a processor cooperating with the at least one current sensor, the voltage sensor and the at least one switch, and being structured to provide feed forward fault protection for the direct current electrical generating apparatus.

    摘要翻译: 保护装置用于直流发电装置。 保护装置包括:第一终端; 第二个终端 第三个终端; 第四个终端; 至少一个电流传感器,其被构造为感测在所述第一和第二端子之间或所述第三和第四端子之间流动的电流; 电压传感器,被构造为感测第一端子和第三端子之间的电压; 至少一个开关,被构造成中断在第一和第二端子之间或第三和第四端子之间流动的电流; 以及处理器,其与所述至少一个电流传感器,所述电压传感器和所述至少一个开关配合,并被构造成为所述直流发电设备提供前馈故障保护。

    DIRECT CURRENT ARC FAULT CIRCUIT INTERRUPTER, DIRECT CURRENT ARC FAULT DETECTOR, NOISE BLANKING CIRCUIT FOR A DIRECT CURRENT ARC FAULT CIRCUIT INTERRUPTER, AND METHOD OF DETECTING ARC FAULTS
    2.
    发明申请
    DIRECT CURRENT ARC FAULT CIRCUIT INTERRUPTER, DIRECT CURRENT ARC FAULT DETECTOR, NOISE BLANKING CIRCUIT FOR A DIRECT CURRENT ARC FAULT CIRCUIT INTERRUPTER, AND METHOD OF DETECTING ARC FAULTS 有权
    直流电弧故障电路中断器,直流电弧故障检测器,用于直流电弧故障电路中断器的噪声除电电路以及检测电弧故障的方法

    公开(公告)号:US20110141644A1

    公开(公告)日:2011-06-16

    申请号:US12637873

    申请日:2009-12-15

    IPC分类号: H02H3/50

    摘要: A direct current arc fault circuit interrupter includes separable contacts and a trip circuit to trip open the contacts. The trip circuit includes a number of alternating current sensors structured to sense a current flowing through the separable contacts, a number of filter circuits cooperating with the AC current sensors to output a number of AC signals, a number of peak detectors cooperating with the filter circuits to output a number of peak current signals, and a processor cooperating with at least the peak detectors. The processor inputs the number of peak current signals as a plurality of peak current signals or inputs the number of peak current signals and determines the plurality of peak current signals. The processor also determines if the peak current signals exceed corresponding predetermined thresholds for a predetermined time, and responsively causes the contacts to trip open.

    摘要翻译: 直流电弧故障电路断路器包括可分离触点和跳闸电路,以使触点断开。 跳闸电路包括多个交流传感器,其被构造为感测流过可分离触点的电流,多个滤波电路与AC电流传感器配合以输出多个AC信号,多个峰值检测器与滤波器电路 以输出多个峰值电流信号,以及与至少峰值检测器协作的处理器。 处理器输入峰值电流信号的数量作为多个峰值电流信号,或输入峰值电流信号的数量,并确定多个峰值电流信号。 处理器还确定峰值电流信号是否在预定时间内超过相应的预定阈值,并且响应地使触点跳闸打开。

    Temperature compensating integrated anti-differential current sensing system
    3.
    发明授权
    Temperature compensating integrated anti-differential current sensing system 有权
    温度补偿集成抗差分电流检测系统

    公开(公告)号:US07259546B1

    公开(公告)日:2007-08-21

    申请号:US11162220

    申请日:2005-09-01

    IPC分类号: G01R15/20

    CPC分类号: G01R15/202 G01R15/207

    摘要: A system for current sensing includes a first Hall effect sensor and a second Hall effect sensor constructed to provide feedback indicating current flow through a conductor susceptible to external magnetic flux. A housing is configured to position the first Hall effect sensor and the second Hall effect sensor about the conductor to provide generally magnitude equal feedback of the current flow through the conductor and generally polarity opposite feedback of the external magnetic flux.

    摘要翻译: 用于电流感测的系统包括第一霍尔效应传感器和第二霍尔效应传感器,第二霍尔效应传感器被构造成提供反馈指示通过易受外部磁通量的导体的电流的反馈 壳体被配置为将第一霍尔效应传感器和第二霍尔效应传感器定位在导体周围,以提供通过导体的电流的大致相等的反馈,并且大体上极性地反映外部磁通的极性反馈。

    Method and apparatus for detecting and suppressing a parallel arc fault
    4.
    发明授权
    Method and apparatus for detecting and suppressing a parallel arc fault 有权
    用于检测和抑制并联电弧故障的方法和装置

    公开(公告)号:US06590757B2

    公开(公告)日:2003-07-08

    申请号:US09967116

    申请日:2001-09-28

    IPC分类号: H02N308

    CPC分类号: H02H3/0935 H02H1/0015

    摘要: Electrical equipment (14) is safeguarded from damage due to parallel arc faults by a circuit that provides several levels of protection. A semiconductor switch (18) and a current sensor (24) are placed in series with the electrical equipment (14). When the current to the equipment exceeds a first threshold for a predefined period of time, the semiconductor switch (18) is rendered non-conductive until the circuit is specifically reset. When the current to the equipment exceeds a greater second threshold, a pulsed signal alternately places the semiconductor switch (18) in conductive and non-conductive states so that the average current applied to the equipment (14) is within an acceptable level. The pulses are measured to determine whether a parallel arc fault has occurred. When the measured pulses (74) are within a predetermined range, a parallel arc fault is declared and the semiconductor switch (18) is rendered non-conductive. Should the current exceed an even greater third threshold, the semiconductor switch (18) is immediately rendered non-conductive until the circuit is manually reset.

    摘要翻译: 电气设备(14)通过提供多级保护的电路可以避免由于并联电弧故障造成的损坏。 半导体开关(18)和电流传感器(24)与电气设备(14)串联放置。 当到设备的电流超过预定时间段的第一阈值时,半导体开关(18)变为不导通,直到电路被特别复位。 当到设备的电流超过更大的第二阈值时,脉冲信号交替地将半导体开关(18)置于导电和非导通状态,使得施加到设备(14)的平均电流在可接受的水平内。 测量脉冲以确定是否发生并联电弧故障。 当测量的脉冲(74)在预定范围内时,声明并联电弧故障,并使半导体开关(18)变为不导通。 如果电流超过了更大的第三阈值,则半导体开关(18)立即变为不导通,直到电路被手动复位。

    Current transformer using a laminated toroidal core structure and a lead
frame
    5.
    发明授权
    Current transformer using a laminated toroidal core structure and a lead frame 失效
    电流互感器使用层叠环形芯结构和引线框架

    公开(公告)号:US5430613A

    公开(公告)日:1995-07-04

    申请号:US69338

    申请日:1993-06-01

    摘要: A current transformer device is formed on a ceramic substrate which is provided with a plurality of planar conductive tracks formed on a surface of the substrate where the conductive tracks extend substantially radially from an imaginary point on the surface of the substrate. A structure of permeable material layers is then tape cast or epitaxially formed by vapor deposition of a thick film of magnetic ceramic over the major portion of each of the conductive tracks to form a permeable toroidal core. A lead frame is then placed over the core and a plurality of metal conductors are soldered to each of the respective exposed ends of the metal conductive tracks on the substrate to form a toroidal coil surrounding the toroidal core. The required electrical elements to complete the current transformer device are mounted to a second side of the ceramic substrate and electrically connected to the toroidal coil for powering and/or receiving signals therefrom.

    摘要翻译: 电流互感器装置形成在陶瓷基片上,该陶瓷基片上设有形成在基片表面上的多个平面导电迹线,导电迹线从基片表面的假想点基本径向延伸。 然后通过在每个导电轨道的主要部分上蒸镀一层厚厚的磁性陶瓷,将可渗透材料层的结构胶带或外延形成,以形成可渗透的环形芯。 然后将引线框放置在芯上,并且将多个金属导体焊接到衬底上的金属导电轨道的相应暴露端中的每一个,以形成环绕环形芯的环形线圈。 完成电流互感器装置的所需电气元件安装在陶瓷基片的第二侧上,并电连接到环形线圈,用于向其提供和/或接收信号。

    Bypass contactor for solid state motor starters
    6.
    发明授权
    Bypass contactor for solid state motor starters 失效
    固态电机起动器旁路接触器

    公开(公告)号:US5337214A

    公开(公告)日:1994-08-09

    申请号:US55590

    申请日:1993-05-03

    摘要: A bypass contactor usable in a solid state motor starter for shunting current around a fully-conducting solid state switching device comprising an electromagnetic contactor housed in a molded insulating enclosure having a plurality of bridging contacts movable into and out of engagement with a pair of stationary contacts to provide plural parallel current paths within the contactor, the stationary contacts having rigid terminal portions projecting externally of the insulating enclosure connectable to the heat sinks of the solid state motor starter in a preferred manner to suspend the contactor above the panel, permitting other components to be mounted below the bypass contacts. Alternate embodiments have the contactor mounted to the same support as the starter power pole component assembly and electrically connected thereto by rigid preformed connectors or flexible braided straps. Also contemplated is increasing the rated current handling capacity by mounting a pair of the bypass contactors to the heat sinks in parallel to double the parallel current paths.

    摘要翻译: 一种可用于固态电动机启动器的旁路接触器,用于在完全导电的固态开关装置周围分流电流,包括容纳在模制绝缘外壳中的电磁接触器,所述电磁接触器具有可移动到与一对固定触点接合的多个桥接触头 为了在接触器内提供多个平行的电流路径,固定触头具有突出于绝缘外壳外部的刚性端子部分,其以优选的方式连接到固态电动机起动器的散热片,以将接触器悬挂在面板上方,从而允许其它部件 安装在旁路触点旁边。 替代实施例将接触器安装到与起动器电极部件组件相同的支撑件上,并通过刚性预制连接器或柔性编织带与其电连接。 还考虑到通过将并联的一对旁路接触器并联到并联电流路径的两倍来增加额定电流处理能力。

    MRS current sensor
    8.
    发明授权
    MRS current sensor 失效
    MRS电流传感器

    公开(公告)号:US4841235A

    公开(公告)日:1989-06-20

    申请号:US61351

    申请日:1987-06-11

    IPC分类号: G01R15/20

    CPC分类号: G01R15/205

    摘要: A current sensor (10) comprising spaced pole pieces (62, 64) and a magnetic shunt (80) bridging the pole pieces within an insulating housing assembly (12) which also contains a magnetoresistive transducer (90) and electronic circuitry (16) for sensing magnetic field intensity between the pole pieces and relating that intensity as electric signals provided at terminals (26) at the exterior of the housing. The transducer senses magnetic field intensity along a principal axis (88). Permanent magnets (94, 96) or induction coils (276, 278) are provided to establish a biasing component of magnetic field intensity along an axis (98) substantially normal to the principal axis to improve sensor sensitivity, range of operation and immunity to current overload.

    Current sensor for universal application
    9.
    发明授权
    Current sensor for universal application 失效
    电流传感器用于通用应用

    公开(公告)号:US4791361A

    公开(公告)日:1988-12-13

    申请号:US061355

    申请日:1987-06-11

    IPC分类号: G01R15/20 G01R1/04

    CPC分类号: G01R15/205

    摘要: A magnetic flux concentrator comprising spaced pole pieces (4,6) and magnetic shunt (8) bridging the pole pieces within an insulating housing (2) which also contains a magnetoresistive transducer (24) and electronic circuitry (26) for sensing magnetic field intensity between the pole pieces and relating that intensity as electric signals provided at wiring terminals (28) at the exterior of the housing. The pole pieces have magnetic terminal portions adjacent openings in the housing for removable attachment thereto of selected ferrous strap configurations (42,50,52,60) determined by the cross-sectional shape of the electrical conductor (46) in which current flow is to be measured, the respective strap configuration and flux concentrator forming a magnetic loop around the conductor for picking up the magnetic flux induced by current flow in the conductor.

    PROTECTION, MONITORING OR INDICATION APPARATUS FOR A DIRECT CURRENT ELECTRICAL GENERATING APPARATUS OR A PLURALITY OF STRINGS
    10.
    发明申请
    PROTECTION, MONITORING OR INDICATION APPARATUS FOR A DIRECT CURRENT ELECTRICAL GENERATING APPARATUS OR A PLURALITY OF STRINGS 有权
    用于直流电生成装置或多条线的保护,监视或指示装置

    公开(公告)号:US20110301772A1

    公开(公告)日:2011-12-08

    申请号:US12795032

    申请日:2010-06-07

    IPC分类号: G06F1/28

    摘要: A protection apparatus is for a direct current electrical generating apparatus. The protection apparatus includes a first terminal; a second terminal; a third terminal; a fourth terminal; at least one current sensor structured to sense current flowing between the first and second terminals or between the third and fourth terminals; a voltage sensor structured to sense a voltage between the first terminal and the third terminal; at least one switch structured to interrupt the current flowing between the first and second terminals or between the third and fourth terminals; and a processor cooperating with the at least one current sensor, the voltage sensor and the at least one switch, and being structured to provide feed forward fault protection for the direct current electrical generating apparatus.

    摘要翻译: 保护装置用于直流发电装置。 保护装置包括:第一终端; 第二个终端 第三个终端; 第四个终端; 至少一个电流传感器,其被构造为感测在所述第一和第二端子之间或所述第三和第四端子之间流动的电流; 电压传感器,被构造为感测第一端子和第三端子之间的电压; 至少一个开关,被构造成中断在第一和第二端子之间或第三和第四端子之间流动的电流; 以及处理器,其与所述至少一个电流传感器,所述电压传感器和所述至少一个开关配合,并被构造成为所述直流发电设备提供前馈故障保护。