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    • 3. 发明授权
    • Short-circuit recognition method for an electric network
    • 电网短路识别方法
    • US08335656B2
    • 2012-12-18
    • US12740229
    • 2008-10-10
    • Frank BergerTimo Mützel
    • Frank BergerTimo Mützel
    • G01R31/00
    • H02H3/44H02H3/08
    • A short-circuit recognition method is disclosed, especially an early short-circuit recognition method, for an electric network. In at least one embodiment, in order to improve the switching times of protective devices, the current and the first and second temporal derivation thereof are continuously and consecutively determined at the same time and in the same temporal distance and are processed as respective digital sequences of numbers. Every sequence of numbers is associated with a defined threshold value, the numbers of the three sequences of numbers being compared with the respective threshold value associated therewith. Every number that exceeds the threshold value associated therewith is associated with a weighting variable and the weighting variables that pertain to the same time are added up to a first weighting sum. The first weighting sums are added to a second weighting sum for a defined number of directly subsequent times and the second weighting sum is compared with an additional defined threshold value. When the second weighting sum exceeds the defined threshold value, a short circuit is recognized.
    • 公开了一种用于电网的短路识别方法,特别是早期的短路识别方法。 在至少一个实施例中,为了改善保护装置的切换时间,其当前和第一和第二时间导出在同一时间和相同的时间距离上连续且连续地确定,并被处理为相应的数字序列 数字。 每个数字序列与定义的阈值相关联,将三个数字序列的数量与与其相关联的相应阈值进行比较。 超过与其相关联的阈值的每个数字与加权变量相关联,并且与相同时间相关的加权变量被加到第一加权和。 第一加权和被添加到第二加权和以确定数量的直接后续时间,并且将第二加权和与额外定义的阈值进行比较。 当第二加权和超过定义的阈值时,识别出短路。
    • 4. 发明申请
    • SHORT-CIRCUIT RECOGNITION METHOD FOR AN ELECTRIC NETWORK
    • 短路电路识别方法
    • US20100312505A1
    • 2010-12-09
    • US12740229
    • 2008-10-10
    • Frank BergerTimo Mützel
    • Frank BergerTimo Mützel
    • G01R31/02
    • H02H3/44H02H3/08
    • A short-circuit recognition method is disclosed, especially an early short-circuit recognition method, for an electric network. In at least one embodiment, in order to improve the switching times of protective devices, the current and the first and second temporal derivation thereof are continuously and consecutively determined at the same time and in the same temporal distance and are processed as respective digital sequences of numbers. Every sequence of numbers is associated with a defined threshold value, the numbers of the three sequences of numbers being compared with the respective threshold value associated therewith. Every number that exceeds the threshold value associated therewith is associated with a weighting variable and the weighting variables that pertain to the same time are added up to a first weighting sum. The first weighting sums are added to a second weighting sum for a defined number of directly subsequent times and the second weighting sum is compared with an additional defined threshold value. When the second weighting sum exceeds the defined threshold value, a short circuit is recognized.
    • 公开了一种用于电网的短路识别方法,特别是早期的短路识别方法。 在至少一个实施例中,为了改善保护装置的切换时间,其当前和第一和第二时间导出在同一时间和相同的时间距离上连续且连续地确定,并被处理为相应的数字序列 数字。 每个数字序列与定义的阈值相关联,将三个数字序列的数量与与其相关联的相应阈值进行比较。 超过与其相关联的阈值的每个数字与加权变量相关联,并且与相同时间相关的加权变量被加到第一加权和。 第一加权和被添加到第二加权和以确定数量的直接后续时间,并且将第二加权和与额外定义的阈值进行比较。 当第二加权和超过定义的阈值时,识别出短路。
    • 5. 发明授权
    • Self-recovering current-limiting device having liquid metal
    • 具有液态金属的自恢复限流装置
    • US06603384B1
    • 2003-08-05
    • US10009719
    • 2001-12-13
    • Wolfgang KremersFrank BergerAndreas Kraetzschmar
    • Wolfgang KremersFrank BergerAndreas Kraetzschmar
    • H01H8700
    • H01H87/00
    • A self-recovering current-limiting device having liquid metal includes solid metal electrodes for connecting to an external electric circuit to be protected. A plurality of compression spaces which are partially filled with liquid metal are arranged one behind the other between the electrodes and are formed by pressure-resistant insulating bodies and by insulating partitioning walls having connecting channels. An enclosing insulating shaped housing is provided having a trough-like bottom part and a cover that tightly closes the bottom part via a non-positive and/or positive connecting device. The partitioning walls and the bottom part are interconnected as one piece. The connecting channels are configured as longitudinal holes which are open at the top. The electrodes are mounted in the bottom part. The nominal current range of the device may be easily adjusted.
    • 具有液体金属的自恢复限流装置包括用于连接到待保护的外部电路的固体金属电极。 部分填充有液态金属的多个压缩空间在电极之间一个接一个地布置,并且由耐压绝缘体和通过具有连接通道的绝缘分隔壁形成。 设置有封闭的绝缘形外壳,其具有槽形底部和通过非正和/或正连接装置紧密地封闭底部的盖。 分隔壁和底部互连成一体。 连接通道配置为在顶部开放的纵向孔。 电极安装在底部。 器件的额定电流范围可以轻松调整。
    • 9. 发明授权
    • Self-recovering current-limiting device with liquid metal
    • 具有液态金属的自恢复限流装置
    • US06850145B1
    • 2005-02-01
    • US09890503
    • 2000-01-22
    • Wolfgang KremersFrank BergerAndreas Kraetzschmar
    • Wolfgang KremersFrank BergerAndreas Kraetzschmar
    • H02H9/02H01H87/00H01H29/02
    • H01H87/00
    • A self-recovering current-limiting device with a liquid metal includes a first and a second electrode for connection to an electric circuit to be protected. Each of the first and second electrodes are made of a solid metal. A plurality of pressure-resistant insulating bodies is provided, as well as a plurality of insulating intermediate walls supported by the insulating bodies. The plurality of insulating intermediate walls and the plurality of pressure-resistant insulating bodies define a plurality of compression spaces, and the plurality of insulating intermediate walls define a plurality of connecting channels. The plurality of compression spaces are disposed one behind the other between the first and second electrodes and are at least partially filled with the liquid metal. A first connecting conductor connected to the first electrode and disposed below the plurality of compression spaces and having an inverse current direction is provided, as well as a ferromagnetic body disposed above the plurality of compression spaces.
    • 具有液态金属的自恢复限流装置包括用于连接到待保护电路的第一和第二电极。 第一和第二电极中的每一个由固体金属制成。 提供了多个耐压绝缘体,以及由绝缘体支撑的多个绝缘中间壁。 多个绝缘中间壁和多个耐压绝缘体限定多个压缩空间,并且多个绝缘中间壁限定多个连接通道。 多个压缩空间在第一和第二电极之间一个接一个地布置,并且至少部分地被液体金属填充。 提供了连接到第一电极并且设置在多个压缩空间下方并具有逆电流方向的第一连接导体,以及设置在多个压缩空间上方的铁磁体。
    • 10. 发明授权
    • Self-recovering current-limiting device with liquid metal
    • 具有液态金属的自恢复限流装置
    • US06788516B1
    • 2004-09-07
    • US09831968
    • 2001-05-16
    • Andreas KraetzschmarFrank BergerMichael AnheuserWolfgang Kremers
    • Andreas KraetzschmarFrank BergerMichael AnheuserWolfgang Kremers
    • H02H322
    • H01H87/00
    • The invention relates to a self-recovering current-limiting device with liquid metal. The device contains two solid metal electrodes (11, 12) which are rotationally symmetrical in relation to the longitudinal axis (3) of the current limiting device (1) and several compression chambers (4) which are partially filled with liquid metal (8) and arranged in a series between the electrodes (11, 12). The compression chambers are formed by pressure-resistant insulating bodies (5, 7) and insulating intermediate walls (6) which are supported by the same (6) and which have several connecting channels (9), distributed in a circular form. The aim of the invention is to extend the positions of use. To this end, the electrodes (11, 12) have cavities (14) which are connected to the adjacent compression chambers (4) by openings (16) and which are adequately wetted to completely filled with the liquid metal (8), according to the position of use.
    • 本发明涉及一种具有液态金属的自恢复限流装置。 该装置包含相对于限流装置(1)的纵向轴线(3)旋转对称的两个固体金属电极(11,12)和部分充满液态金属(8)的几个压缩室(4) 并且在电极(11,12)之间串联布置。 压缩室由耐压绝缘体(5,7)和由相同(6)支撑的绝缘中间壁(6)形成,并且具有以圆形形式分布的多个连接通道(9)。 本发明的目的是扩大使用的位置。 为此,电极(11,12)具有通过开口(16)连接到相邻压缩室(4)并且被充分润湿以完全填充液态金属(8)的空腔(14),根据 使用的位置。