Circuit breaker with current limiting contact structure
    1.
    发明授权
    Circuit breaker with current limiting contact structure 失效
    具有限流触点结构的断路器

    公开(公告)号:US5917390A

    公开(公告)日:1999-06-29

    申请号:US120838

    申请日:1998-07-22

    IPC分类号: H01H77/10 H01H75/00

    CPC分类号: H01H77/107 H01H77/10

    摘要: A circuit breaker having a shunting contact structure with low watts loss and high withstand level. The circuit breaker of the present invention comprises an upper contact arm having a first contact disposed thereon and a lower contact arm having second and third contacts thereon with the second contact mating with the first contact. A shunt terminal is provided between the upper contact arm and the lower contact arm. The shunt terminal includes a fourth contact which mates with the third contact on the lower contact arm. The circuit breaker of the current invention has a closed, open and current limiting position. When the circuit breaker is conducting nominal rated current, the first, second, third and fourth contacts remain closed. When the circuit breaker is under fault conditions which are circuit current conditions above the withstand level, the circuit breaker switches to a current limiting mode. In this mode, the upper contact arm and the lower contact arm move simultaneously in an upward and downward manner respectively, thereby opening the third and fourth contacts resulting in a blow open loop that opens the first and second contacts and protect a load coupled to the device from overcurrent conditions.

    摘要翻译: 具有低瓦特损耗和高耐受水平的分流接触结构的断路器。 本发明的断路器包括具有设置在其上的第一触点的上接触臂和具有第二和第三触点的下接触臂,其中第二触点与第一触点配合。 在上接触臂和下接触臂之间设有并联端子。 分流端子包括与下触点臂上的第三触点配合的第四触点。 本发明的断路器具有闭合,断开和限流位置。 当断路器导通标称额定电流时,第一,第二,第三和第四触点保持闭合。 当断路器处于高于耐受水平的电路电流状态的故障条件下时,断路器切换到限流模式。 在这种模式中,上接触臂和下接触臂分别同时上下移动,从而打开第三和第四触点,从而产生打开开环,打开第一和第二触点并保护耦合到 设备从过流条件。

    Apparatus and method for representing protection device trip response
    2.
    发明授权
    Apparatus and method for representing protection device trip response 有权
    用于表示保护装置跳闸响应的装置和方法

    公开(公告)号:US06721154B2

    公开(公告)日:2004-04-13

    申请号:US10248062

    申请日:2002-12-13

    IPC分类号: H01H7300

    CPC分类号: H02H3/0935 H02H3/04 H02H7/30

    摘要: A method and apparatus generates an enhanced trip time curve capable of capturing both the non-sinusoidal energy and series effects. Relevant data including time, current, and energy is plotted on a three-dimensional set of axes. The resultant three-dimensional representation is useful for representing trip times for a protection device accounting for energy effects, and for determining selectivity in a multi-tier electrical distribution system.

    摘要翻译: 一种方法和装置产生能够捕获非正弦能量和串联效应的增强跳闸时间曲线。 包括时间,当前和能量在内的相关数据绘制在三维轴组上。 所得到的三维表示对于表示能量效应的保护装置的跳闸时间以及用于在多层配电系统中确定选择性是有用的。

    Bell alarm accessory arrangement for molded case circuit interrupter
    3.
    发明授权
    Bell alarm accessory arrangement for molded case circuit interrupter 失效
    用于塑壳断路器的铃声报警附件装置

    公开(公告)号:US5036303A

    公开(公告)日:1991-07-30

    申请号:US518674

    申请日:1990-05-03

    IPC分类号: H01H71/46

    CPC分类号: H01H71/465

    摘要: An integrated protection unit is a circuit interrupter which includes basic overcurrent protection facility along with selective electrical accessories. A molded plastic accessory access cover secured to the integrated protection unit cover protects the accessory components contained within the integrated protection unit cover from the environment. A combined overcurrent trip actuator and multiple accessory unit can be field-installed within the integrated protection unit. The combined actuator-accessory unit includes electronic control circuitry for the accessories along with mechanical trip and reset interface components. One such accessory used with the integrated protection unit is a bell alarm for indicating the status of the circuit interrupter contacts.

    摘要翻译: 集成保护单元是一种电路断路器,包括基本的过流保护设备以及选择性电气配件。 固定到集成保护单元盖的模制塑料附件通道盖保护集成保护单元盖中包含的附件​​部件免受环境影响。 组合的过电流跳闸执行器和多个附件单元可以现场安装在集成保护单元内。 组合的执行器附件单元包括用于附件的电子控制电路以及机械跳闸和复位接口组件。 一个与集成保护单元一起使用的附件是用于指示断路器触点状态的铃声报警器。

    Apparatus and method for representing protection device trip response
    6.
    发明授权
    Apparatus and method for representing protection device trip response 有权
    用于表示保护装置跳闸响应的装置和方法

    公开(公告)号:US06535370B1

    公开(公告)日:2003-03-18

    申请号:US09650528

    申请日:2000-08-30

    IPC分类号: H01H7300

    CPC分类号: H02H3/0935 H02H3/04 H02H7/30

    摘要: A method and apparatus generates an enhanced trip time curve capable of capturing both the non-sinusoidal energy and series effects. Relevant data including time, current, and energy is plotted on a three-dimensional set of axes. The resultant three-dimensional representation is useful for representing trip times for a protection device accounting for energy effects, and for determining selectivity in a multi-tier electrical distribution system.

    摘要翻译: 一种方法和装置产生能够捕获非正弦能量和串联效应的增强跳闸时间曲线。 包括时间,当前和能量在内的相关数据绘制在三维轴组上。 所得到的三维表示对于表示能量效应的保护装置的跳闸时间以及用于在多层配电系统中确定选择性是有用的。