Protective device having a circuit breaker, in particular a low-voltage circuit breaker
    3.
    发明授权
    Protective device having a circuit breaker, in particular a low-voltage circuit breaker 有权
    具有断路器的保护装置,特别是低压断路器

    公开(公告)号:US08149550B2

    公开(公告)日:2012-04-03

    申请号:US12223122

    申请日:2006-12-27

    IPC分类号: H02H3/00

    CPC分类号: H02H3/162 H02H3/083 H02H7/04

    摘要: A protective device is disclosed having a circuit breaker for an electrical connection between a transformer and a load, wherein an overcurrent device is arranged between the transformer and the load. The overcurrent device has first magnetoelectric transducers arranged at each phase conductor and the neutral conductor, wherein the overcurrent device uses the transducer currents to in each case establish the presence of a first ground-fault current, and wherein the circuit breaker has a switching device, which interrupts at least the phase conductors between the transformer and the load in the event of the presence of a first ground-fault current (unrestricted earth fault). In order to also be able to determine the ground fault current between the transformer and the circuit breaker, at least one embodiment of the invention proposes providing in each case second magnetoelectric transducers at each phase conductor, the neutral conductor and a star-point conductor which is connected to the star point, using the transducer currents of the second transducer in each case to determine the presence of a second ground-fault current (restricted earth fault), and forming a signal for disconnecting the transformer in the event of the presence of a second ground-fault current.

    摘要翻译: 公开了一种保护装置,其具有用于变压器和负载之间的电连接的断路器,其中过电流装置布置在变压器和负载之间。 过电流装置具有布置在每个相导体和中性导体上的第一磁电变换器,其中过电流装置在每种情况下使用换能器电流建立存在第一接地故障电流,并且其中断路器具有开关装置, 在存在第一接地故障电流(无限制接地故障)的情况下,至少中断变压器和负载之间的相导体。 为了能够确定变压器和断路器之间的接地故障电流,本发明的至少一个实施例提出在每个情况下提供在每个相导体中的第二个磁电换能器,中性导体和星点导体, 连接到星点,在每种情况下使用第二换能器的换能器电流来确定是否存在第二接地故障电流(受限接地故障),并且在存在故障的情况下形成用于断开变压器的信号 第二个接地故障电流。

    Protective Device Having a Circuit Breaker, in Particular a Low-Voltage Circuit Breaker
    4.
    发明申请
    Protective Device Having a Circuit Breaker, in Particular a Low-Voltage Circuit Breaker 有权
    具有断路器的保护装置,特别是低压断路器

    公开(公告)号:US20090027815A1

    公开(公告)日:2009-01-29

    申请号:US12223122

    申请日:2006-12-27

    IPC分类号: H02H7/04 H02H3/00

    CPC分类号: H02H3/162 H02H3/083 H02H7/04

    摘要: A protective device is disclosed having a circuit breaker for an electrical connection between a transformer and a load, wherein an overcurrent device is arranged between the transformer and the load. The overcurrent device has first magnetoelectric transducers arranged at each phase conductor and the neutral conductor, wherein the overcurrent device uses the transducer currents to in each case establish the presence of a first ground-fault current, and wherein the circuit breaker has a switching device, which interrupts at least the phase conductors between the transformer and the load in the event of the presence of a first ground-fault current (unrestricted earth fault). In order to also be able to determine the ground fault current between the transformer and the circuit breaker, at least one embodiment of the invention proposes providing in each case second magnetoelectric transducers at each phase conductor, the neutral conductor and a star-point conductor which is connected to the star point, using the transducer currents of the second transducer in each case to determine the presence of a second ground-fault current (restricted earth fault), and forming a signal for disconnecting the transformer in the event of the presence of a second ground-fault current.

    摘要翻译: 公开了一种保护装置,其具有用于变压器和负载之间的电连接的断路器,其中过电流装置布置在变压器和负载之间。 过电流装置具有布置在每个相导体和中性导体上的第一磁电变换器,其中过电流装置在每种情况下使用换能器电流建立存在第一接地故障电流,并且其中断路器具有开关装置, 在存在第一接地故障电流(无限制接地故障)的情况下,至少中断变压器和负载之间的相导体。 为了能够确定变压器和断路器之间的接地故障电流,本发明的至少一个实施例提出在每个情况下提供在每个相导体中的第二个磁电换能器,中性导体和星点导体, 连接到星点,在每种情况下使用第二换能器的换能器电流来确定是否存在第二接地故障电流(受限接地故障),并且在存在故障的情况下形成用于断开变压器的信号 第二个接地故障电流。

    Circuit breaker remote service system
    5.
    发明授权
    Circuit breaker remote service system 失效
    断路器远程服务系统

    公开(公告)号:US06778650B1

    公开(公告)日:2004-08-17

    申请号:US10181734

    申请日:2002-07-22

    IPC分类号: H04M1100

    摘要: A remote service system for a circuit breaker fixed in a remote allocation. Remote service is provided by any station that can be accessed through a communication network. The system is provided, on one side, with a diagnostic hand-held apparatus which is dedicated to a switch service and should be connected, if necessary, to a circuit breaker, through a connecting unit provided to that end, and on the other side, with a telecommunication interface for exchanging a data through a telecommunication network.

    摘要翻译: 一种远程分配固定的断路器的远程服务系统。 任何可以通过通信网络访问的站点提供远程服务。 该系统一方面提供专用于开关服务的诊断手持式设备,并且如果需要,应通过设置在该端部的连接单元和另一侧连接到断路器 具有用于通过电信网络交换数据的电信接口。