利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

4 条记录 (耗时 0.021 秒)

    Arc suppression circuit using a semi-conductor switch
    1.
    发明授权
    Arc suppression circuit using a semi-conductor switch 失效
    使用半导体开关的电弧抑制电路

    公开(公告)号：US07697247B2

    公开(公告)日：2010-04-13

    申请号：US11598240

    申请日：2006-11-10

    申请人： Mohamed Maharsi ,  Douglas A. Voda ,  Mark C. Glacobbe ,  Dela Salah-Eldin Sayoumi ,  Douglas A. Wood

    发明人： Mohamed Maharsi ,  Douglas A. Voda ,  Mark C. Glacobbe ,  Dela Salah-Eldin Sayoumi ,  Douglas A. Wood

    IPC分类号： H01H9/30

    CPC分类号： H01H9/542 ,  H01H2009/543 ,  H01H2009/544 ,  H01H2009/546

    摘要： An arc suppression circuit in a protection relay having trip contacts is used to turn off a battery-powered solenoid and trip an AC power circuit breaker. The arc suppression circuit uses a switch-control circuit to control the turning off of a semi-conductor switch so that the semi-conductor switch provides a current path around the trip contacts, and is carrying all, or substantially all, of the load current, before the trip contacts are opened. When the trip contacts begin to open, the switch-control circuit holds the semi-conductor switch on for a sufficient time to prevent an arc from becoming established before turning the semi-conductor switch off. In a second embodiment, the arc suppression circuit provides a second switch-control circuit. This second switch-control circuit is configured to accept control signals from a microprocessor within a protection relay. The microprocessor turns the semi-conductor switch on before the contacts begin to open, thereby providing a current path around the contacts before the contacts begin to open. The microprocessor turns the semi-conductor switch off after a time sufficient to prevent an arc from becoming established.

    摘要翻译： 使用具有跳闸触点的保护继电器中的电弧抑制电路来关闭电池供电的电磁线圈并跳闸交流电源断路器。 电弧抑制电路使用开关控制电路来控制半导体开关的关断，使得半导体开关提供围绕跳闸触点的电流路径，并且承载所有或基本上所有的负载电流 在旅行联系人打开之前。 当跳闸触点开始打开时，开关控制电路将半导体开关保持足够的时间，以防止在半导体开关断开之前建立电弧。 在第二实施例中，电弧抑制电路提供第二开关控制电路。 该第二开关控制电路被配置为接受来自保护继电器内的微处理器的控制信号。 微处理器在触点开始打开之前打开半导体开关，从而在触点开始打开之前提供触点周围的电流路径。 微处理器在足以防止电弧变得建立的时间之后关闭半导体开关。

    Arc suppression circuit using a semi-conductor switch
    2.
    发明申请
    Arc suppression circuit using a semi-conductor switch 失效
    使用半导体开关的电弧抑制电路

    公开(公告)号：US20080112097A1

    公开(公告)日：2008-05-15

    申请号：US11598240

    申请日：2006-11-10

    申请人： Mohamed Maharsi ,  Douglas A. Voda ,  Mark C. Glacobbe ,  Dela Salah-Eldin Sayoumi ,  Douglas A. Wood

    发明人： Mohamed Maharsi ,  Douglas A. Voda ,  Mark C. Glacobbe ,  Dela Salah-Eldin Sayoumi ,  Douglas A. Wood

    IPC分类号： H01H9/54

    CPC分类号： H01H9/542 ,  H01H2009/543 ,  H01H2009/544 ,  H01H2009/546

    摘要： An arc suppression circuit in a protection relay having trip contacts is used to turn off a battery-powered solenoid and trip an AC power circuit breaker. The arc suppression circuit uses a switch-control circuit to control the turning off of a semi-conductor switch so that the semi-conductor switch provides a current path around the trip contacts, and is carrying all, or substantially all, of the load current, before the trip contacts are opened. When the trip contacts begin to open, the switch-control circuit holds the semi-conductor switch on for a sufficient time to prevent an arc from becoming established before turning the semi-conductor switch off. In a second embodiment, the arc suppression circuit provides a second switch-control circuit. This second switch-control circuit is configured to accept control signals from a microprocessor within a protection relay. The microprocessor turns the semi-conductor switch on before the contacts begin to open, thereby providing a current path around the contacts before the contacts begin to open. The microprocessor turns the semi-conductor switch off after a time sufficient to prevent an arc from becoming established.

    摘要翻译： 使用具有跳闸触点的保护继电器中的电弧抑制电路来关闭电池供电的电磁线圈并跳闸交流电源断路器。 电弧抑制电路使用开关控制电路来控制半导体开关的关断，使得半导体开关提供围绕跳闸触点的电流路径，并且承载所有或基本上所有的负载电流 在旅行联系人打开之前。 当跳闸触点开始打开时，开关控制电路将半导体开关保持足够的时间，以防止在半导体开关断开之前建立电弧。 在第二实施例中，电弧抑制电路提供第二开关控制电路。 该第二开关控制电路被配置为接受来自保护继电器内的微处理器的控制信号。 微处理器在触点开始打开之前打开半导体开关，从而在触点开始打开之前提供触点周围的电流路径。 微处理器在足以防止电弧变得建立的时间之后关闭半导体开关。