Circuit breaker with trip indication arrangement
    1.
    发明授权
    Circuit breaker with trip indication arrangement 有权
    断路器与跳闸指示布置

    公开(公告)号:US6104266A

    公开(公告)日:2000-08-15

    申请号:US324400

    申请日:1999-06-02

    IPC分类号: H01H71/04 H01H73/12

    CPC分类号: H01H71/04

    摘要: A visible trip indication arrangement for a circuit breaker. The visible trip indication arrangement comprises a viewing window forming a part of the breaker housing, the viewing window including indicia thereon that is readily or enhancedly visible when the circuit breaker has been tripped and essentially not visible when the circuit breaker is operating by way of a trip indicator that moves under and aligns with the viewing window when the circuit breaker is in the tripped condition. The trip indicator having a brightly colored surface, causes the indicia on the viewing window to be readily visible by way of the reflected light off a surface thereof.

    摘要翻译: 断路器的可视跳闸指示装置。 可视跳闸指示装置包括形成断路器壳体的一部分的观察窗,观察窗包括其上的标记,当断路器已经跳闸并且当断路器通过 当断路器处于跳闸状态时,移动指示器向下移动并与观察窗对齐。 旅行指示器具有明亮的表面,使得观察窗上的标记通过离开其表面的反射光容易地看到。

    Circuit breaker cover with screw locating feature
    8.
    发明授权
    Circuit breaker cover with screw locating feature 失效
    带螺丝定位功能的断路器盖

    公开(公告)号:US06362711B1

    公开(公告)日:2002-03-26

    申请号:US09709212

    申请日:2000-11-10

    IPC分类号: H01H1304

    CPC分类号: H01H71/7427 H01H2069/013

    摘要: A molded circuit breaker cover for providing access to a calibration screw of a thermal trip unit is disclosed. The cover includes an exterior surface having an opening disposed therein and a locator extending from an underside of the cover. The locator includes a channel surface defining a channel continuous with the opening wherein the locator captures the calibration screw and aligns the calibration screw with the opening. Locator significantly increase the calibration yield of multi-pole circuit breakers by decreasing misalignment of the calibration screws during assembly of the circuit breaker.

    摘要翻译: 公开了一种用于提供对热跳闸单元的校准螺钉的访问的模制断路器盖。 所述盖包括外表面,其具有设置在其中的开口和从所述盖的下侧延伸的定位器。 定位器包括限定与开口连续的通道的通道表面,其中定位器捕获校准螺钉并使校准螺丝与开口对准。 定位器通过在组装断路器期间减少校准螺丝的不对准,显着提高多极断路器的校准产量。

    Compact low cost current sensor and current transformer core for circuit breakers having improved dynamic range
    10.
    发明授权
    Compact low cost current sensor and current transformer core for circuit breakers having improved dynamic range 失效
    具有改进的动态范围的紧凑型低成本电流传感器和用于断路器的电流互感器芯

    公开(公告)号:US07002440B2

    公开(公告)日:2006-02-21

    申请号:US11004721

    申请日:2004-12-03

    IPC分类号: H01H75/00

    CPC分类号: G01R15/183

    摘要: A circuit breaker having a housing, a pair of separable contacts, a current sensor strap in electrical communication with the contacts, an operating mechanism for operating the contacts, an electronic trip unit in operable communication with the sensor strap and the mechanism, and a current transformer is disclosed. The current transformer has a mixed material magnetic core having a first layer of material having a relatively high magnetic permeability, and a second layer of material having a relatively low magnetic permeability abutting the first layer of material. The core has a profile with an opening therethrough for accepting the sensor strap. A signal generator is disposed proximate the core to provide an output signal representative of a magnetic flux associated with the sensor strap. The mixed material magnetic core exhibits a dynamic range greater than a dynamic range of a similar shaped magnetic core having only one material of the first layer of material and the second layer of material.

    摘要翻译: 一种断路器,具有壳体,一对可分离触点,与触点电连通的电流传感器带,用于操作触点的操作机构,与传感器带和机构可操作地连通的电子跳闸单元,以及电流 变压器被公开。 电流互感器具有混合材料磁芯,该混合材料磁心具有具有相对较高磁导率的第一材料层,以及与第一层材料相邻的具有相对较低磁导率的第二材料层。 芯具有通过其开口的轮廓以接收传感器带。 信号发生器设置在核心附近以提供表示与传感器带相关联的磁通量的输出信号。 混合材料磁芯的动态范围大于仅具有第一材料层和第二材料层的一种材料的类似形状的磁芯的动态范围。