Method of assembling a modular current transformer
    7.
    发明授权
    Method of assembling a modular current transformer 失效
    组装电流互感器的方法

    公开(公告)号:US06178617B2

    公开(公告)日:2001-01-30

    申请号:US09220226

    申请日:1998-12-23

    IPC分类号: H01F706

    摘要: A method for assembling a modular current transformer (17) includes providing a first bobbin (40A) having a first aperture (32A) disposed therein and a second bobbin (40B) having a second aperture (32B) disposed therein. The first axial aperture (32A) is aligned with the second axial aperture (32B), and a xontinuous wire (21) is wrapped sround the first bobbin (40A) in a first direction. With the first and second axial apertures (32A, 32B) still aligned, the continuous wire (21) is then wrapped around the second bobbin (40B) in a second direction opposite the first direction. The first bobbin (40A) is then inverted by pivoting the first bobbin (40A) about a flexible tab (33) that connects the first and second bobbins (40A, 40B). A transformer core (22) is then disposed through the first and second axial apertures (32A, 32B). The windings on the first and second bobbins (32A, 32B) form the secondary windings (20A, 20B) for the current transformer (17).

    摘要翻译: 一种用于组装模块式电流互感器(17)的方法包括提供具有设置在其中的第一孔(32A)的第一线轴(40A)和设置在其中的第二孔(32B)的第二线轴(40B)。 第一轴向孔径(32A)与第二轴向孔口(32B)对准,并且连续线材(21)沿着第一方向缠绕在第一线轴架(40A)周围。 在第一和第二轴向孔(32A,32B)仍然对准的情况下,连续线(21)然后沿与第一方向相反的第二方向围绕第二线轴(40B)缠绕。 然后通过使第一线轴(40A)围绕连接第一和第二线轴(40A,40B)的柔性翼片(33)枢转来使第一线轴(40A)反转。 然后将变压器芯(22)穿过第一和第二轴向孔(32A,32B)设置。 第一和第二线轴(32A,32B)上的绕组形成用于电流互感器(17)的次级绕组(20A,20B)。

    Armature for latching a circuit breaker trip unit
    9.
    发明授权
    Armature for latching a circuit breaker trip unit 失效
    用于锁定断路器跳闸单元的电枢

    公开(公告)号:US06232860B1

    公开(公告)日:2001-05-15

    申请号:US09602788

    申请日:2000-06-23

    IPC分类号: H01H920

    摘要: A latching system for a circuit breaker is arranged to actuate a trip unit and interrupt circuit current upon occurrence of a short circuit or an overcurrent condition. The latching system employs an armature having a recess formed therein and a cradle having a cradle tip arranged to releasably engage the recess. A thermal magnetic trip unit is depicted within the circuit breaker for the purposes of detecting overcurrent conditions through the electric path. During current transport through the circuit breaker, the current is thermally sensed by means of the bimetal and magnetically sensed by means of the magnet. The armature rotates against the return bias of a compression spring to release the cradle tip from the recess and allow counterclockwise rotation of the contact arm. The rotation of the contact arm causes the separation of the movable and fixed contacts under the urgence of a mechanism spring.

    摘要翻译: 用于断路器的闭锁系统被布置成在发生短路或过电流状况时致动跳闸单元并中断电路电流。 闩锁系统使用具有形成在其中的凹部的电枢和具有布置成可释放地接合凹部的托架顶端的托架。 为了检测通过电路的过电流状况,断路器中描绘了热磁跳闸单元。 在通过断路器的电流传输期间,电流通过双金属热感测并通过磁体进行磁感测。 电枢抵抗压缩弹簧的返回偏压旋转,以将托架尖端从凹部释放,并允许接触臂的逆时针旋转。 接触臂的旋转导致在机构弹簧的紧迫下分离可动和固定触点。

    System for monitoring and controlling a welding/brazing operation
    10.
    发明授权
    System for monitoring and controlling a welding/brazing operation 有权
    用于监测和控制焊接/钎焊操作的系统

    公开(公告)号:US6091044A

    公开(公告)日:2000-07-18

    申请号:US204835

    申请日:1998-12-03

    IPC分类号: B23K1/00

    CPC分类号: B23K1/0004 B23K2203/12

    摘要: A system for monitoring and controlling a welding/brazing operation on a workpiece having two spaced apart materials with a brazing material disposed therebetween. The system includes a welding apparatus having two spaced apart electrodes. A current is applied through the electrodes and the workpiece sufficient to melt the brazing material. A controller controls the brazing operation by controlling the duration of time during which current flows through the workpiece. A non-contact sensor is coupled to the controller and measures the temperature of the brazing material, so that upon a predetermined temperature measured by the sensor, the controller causes the termination of the current to the workpiece.

    摘要翻译: 一种用于监测和控制在具有两个间隔开的材料的工件上的焊接/钎焊操作的系统,其间设置有钎焊材料。 该系统包括具有两个间隔开的电极的焊接设备。 通过电极和工件施加足以熔化钎焊材料的电流。 控制器通过控制电流流过工件的持续时间来控制钎焊操作。 非接触传感器耦合到控制器并测量钎焊材料的温度,使得在由传感器测量的预定温度下,控制器使电流终止于工件。