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    • 4. 发明公开
    • A FAULT CURRENT LIMITER
    • 一个故障限流器
    • EP2481069A1
    • 2012-08-01
    • EP10818167.8
    • 2010-09-27
    • Zenergy Power Pty Ltd
    • DARMANN, Frank
    • H01H73/00H01F38/00H01F29/14H01H75/00
    • H01F38/00H01F38/023
    • A three phase fault current limiter (FCL 6) has three spaced apart input terminals (7) for electrically connecting to respective terminals (5) of a transformer (2). Three output terminals (8) electrically connect FCL (6) with a load circuit (9) which draws load current I
      LOAD . FCL (6) includes a multi-post magnetically saturable core (11) and three AC coils (12, 13 and 14) for electrically connecting terminals (7) to respective terminals (8). Coils (12, 13 and 14) allow I
      LOAD to flow from a power station (4) to circuit (9). Coils (12, 13 and 14) include respective pairs of series connected high voltage cables (15a and 15b, 16a and 16b and 17a and 17b) wound about core (11). Two generally triangular spaced apart DC coils (19, 20) induce a magnetic field in at least that portion of core (11) about which the cables are wound. The field magnetically biases core (11) such that coils (12, 13 and 14) individually move from a low impedance state to a high impedance state in response to I
      LOAD approaching I
      MAX .
    • 三相故障电流限制器(FCL 6)具有三个间隔开的输入端子(7),用于电连接到变压器(2)的相应端子(5)。 三个输出端子(8)将FCL(6)与引入负载电流I LOAD的负载电路(9)电连接。 FCL(6)包括用于将端子(7)电连接到相应端子(8)的多柱磁饱和磁芯(11)和三个AC线圈(12,13和14)。 线圈(12,13和14)允许I LOAD从发电站(4)流到回路(9)。 线圈(12,13和14)包括绕芯线(11)缠绕的各对串联连接的高压电缆(15a和15b,16a和16b以及17a和17b)。 两个大致三角形的间隔开的DC线圈(19,20)在至少缠绕电缆的芯部(11)的部分中感应出磁场。 响应于I LOAD接近I MAX,磁场对磁芯(11)进行磁偏置,使得线圈(12,13和14)从低阻抗状态单独地移动到高阻抗状态。
    • 10. 发明公开
    • A fault current limiter
    • Ein Strombegrenzer
    • EP2387122A1
    • 2011-11-16
    • EP11176988.1
    • 2009-04-03
    • Zenergy Power Pty Ltd
    • Darmann, Francis, Anthony
    • H02H9/02H01F29/14H01F38/02H01F6/06
    • H01F38/023H01F6/06H01F2006/001
    • A fault current limiter including: an input terminal for electrically connecting to a power source that provides a load current; an output terminal for electrically connecting with a load circuit that draws the load current; a magnetically saturable core; an AC coil wound about a longitudinal portion of the core for carrying the load current between the input terminal and the output terminal; an enclosure for housing the magnetically saturable core and AC coil; and a DC coil for inducing a magnetic field in at least the portion of the core and extending about a longitudinal intermediate zone that receives the core and the AC coil, wherein the field magnetically biases the core such that the AC coil moves from a low impedance state to a high impedance state in response to one or more characteristics of the load current.
    • 一种故障电流限制器,包括:用于电连接到提供负载电流的电源的输入端; 用于与负载电路电连接以产生负载电流的输出端子; 磁饱和芯; 围绕所述芯的纵向部分缠绕的用于承载所述输入端子和所述输出端子之间的负载电流的AC线圈; 用于容纳磁饱和芯和AC线圈的外壳; 以及直流线圈,用于在所述芯部的至少一部分中引起磁场并围绕接收所述芯线和所述AC线圈的纵向中间区域延伸,其中所述磁场磁性地偏压所述磁芯,使得所述AC线圈从低阻抗 响应于负载电流的一个或多个特性而状态为高阻抗状态。