Compact molded case circuit breaker with movable contact arm rebound
cushion
    5.
    发明授权
    Compact molded case circuit breaker with movable contact arm rebound cushion 失效
    紧凑型塑壳断路器,带可动接触臂回弹垫

    公开(公告)号:US5089795A

    公开(公告)日:1992-02-18

    申请号:US610758

    申请日:1990-11-08

    摘要: A compact molded case circuit breaker with increased ampere rating employs a latch assembly for maintaining the circuit breaker operating mechanism in a closed condition against a pair of powerful operating springs. To increase the mechanical advantage required to move the operating handle against the springs, a retractable handle extender is attached to the handle. For higher-rated circuit applications, a lug cover extension is added to the line end of the breaker to assist in extinguishing the intense arc that occurs during circuit interruption and to protect the line lugs from inter-phasal circuit faults. A visual access slot is arranged next to the circuit breaker handle to ascertain and verify the condition of the circuit breaker contacts. A rebound cushion is inserted on the interior surface of the circuit breaker cover to deter the return of the movable contact arm during contact separation under extreme overcurrent conditions.

    摘要翻译: 具有更高安培额定值的紧凑型塑壳断路器采用闩锁组件,用于将断路器操作机构保持在处于闭合状态的一对强力操作弹簧。 为了增加将操作手柄相对于弹簧移动所需的机械优点,可伸缩手柄延伸器附接到手柄。 对于更高额定电路应用,在断路器的线路端增加一个接线片延伸部分,以帮助消除电路中断期间发生的强电弧,并保护线路接头不会发生相间电路故障。 断路器手柄旁边设有一个可视通道,以确定和验证断路器触点的状态。 在断路器盖的内表面插入回弹垫,以防止在极端过电流条件下的接触分离期间可动接触臂的返回。

    Apparatus and method for representing protection device trip response
    8.
    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
    9.
    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
    10.
    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。