Circuit breaker with instantaneous trip provided by main conductor routed through magnetic circuit of electronic trip motor
    3.
    发明授权
    Circuit breaker with instantaneous trip provided by main conductor routed through magnetic circuit of electronic trip motor 有权
    断路器由主导体提供瞬时跳闸,通过电子跳闸电机的磁路引导

    公开(公告)号:US06307453B1

    公开(公告)日:2001-10-23

    申请号:US09506871

    申请日:2000-02-15

    IPC分类号: H01H7510

    CPC分类号: H01H83/20 H01H2083/201

    摘要: The toggle mechanism of a circuit breaker is connected at one end to the pivoted contact arm and at the other end to a pivoted latch lever which is engaged to latch the toggle mechanism by a latch member pivoted for movement in a plane perpendicular to the plane of the toggle mechanism. The latch member serves as an armature for a trip motor energized by a trip circuit responsive to an arc fault and/or a ground fault to unlatch the toggle mechanism and trip the circuit breaker open. The latch member is also tripped by a helical bimetal responsive to persistent overcurrents and coupled to the latch member through an ambient compensator bimetal cantilevered from the latch member. A flexible shunt connected between the helical bimetal and contact arm passes through an extension of the magnetic circuit of the trip motor to generate a magnetic field of sufficient strength to trip the latch member instantaneously in response to a short circuit.

    摘要翻译: 断路器的肘节机构的一端连接到枢转的接触臂,另一端连接到枢转的闩锁杆,枢转的闩锁杆通过一个闩锁构件来接合,以便在垂直于 肘节机构。 闩锁构件用作用于由电弧故障和/或接地故障响应的跳闸电路激励的跳闸电动机的电枢,以解锁肘节机构并使断路器断路。 闩锁构件还响应于持续的过电流而被螺旋双金属件跳闸,并且通过从闩锁构件悬臂的环境补偿器双金属件联接到闩锁构件。 连接在螺旋双金属和接触臂之间的柔性分路通过跳闸电动机的磁路的延伸部分,以产生足够强度的磁场,以响应于短路而瞬间跳闸闩锁构件。

    Electrical switching apparatus with modular operating mechanism for
mounting and controlling large compression close spring
    5.
    发明授权
    Electrical switching apparatus with modular operating mechanism for mounting and controlling large compression close spring 失效
    具有模块化操作机构的电气开关装置,用于安装和控制大型压缩闭合弹簧

    公开(公告)号:US6072136A

    公开(公告)日:2000-06-06

    申请号:US74240

    申请日:1998-05-07

    摘要: Electrical switching apparatus such as a power circuit breaker, network protector or switch has a self-supporting operating mechanism module including a cage formed by a pair of side plates rigidly clamped in spaced relation by spacers. The cage supports all of the operating mechanism components including a helical compression close spring mounted fully between the side plates and coupled to a cam member through a rocker in a manner which maintains the forces longitudinal to the spring. The cam member has a charging cam with a charge profile for compressing the close spring and a close profile through which the spring drives the cam member to effect a controlled release of stored energy to close the contacts of the apparatus. The cam shaft is captured between bushings seated in non-circular openings in the side plates thereby eliminating the need for any fasteners. Likewise, other parts mounted between the side plates and joined by pins having enlarged heads retained by the side plates do not need retainers. Various shafts extending between the side plates have reduced diameter ends of progressive lengths for successive insertion in one side plate to aid in assembly of the operating mechanism.

    摘要翻译: 诸如电源断路器,网络保护器或开关的电气开关装置具有自支撑操作机构模块,其包括由通过间隔件以间隔关系刚性地夹紧的一对侧板形成的保持架。 保持架支撑所有的操作机构部件,包括完全安装在侧板之间的螺旋压缩闭合弹簧,并且通过摇杆以保持纵向弹簧的力的方式联接到凸轮部件。 凸轮构件具有充电凸轮,其具有用于压缩闭合弹簧的充电轮廓和紧密轮廓,弹簧驱动凸轮构件以实现储存的能量的控制释放以闭合装置的触点。 凸轮轴被捕获在位于侧板中的非圆形开口中的衬套之间,从而不需要任何紧固件。 类似地,安装在侧板之间并由具有由侧板保持的扩大头部的销接合的其它部件不需要保持器。 在侧板之间延伸的各种轴具有逐渐减小的直径端,用于连续插入到一个侧板中以有助于操作机构的组装。