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    • 1. 发明授权
    • Method of assembling a modular current transformer
    • 组装电流互感器的方法
    • US06178617B2
    • 2001-01-30
    • US09220226
    • 1998-12-23
    • Javier I. LarranagaJoseph CrinitiAlberto A. Figueroa
    • Javier I. LarranagaJoseph CrinitiAlberto A. Figueroa
    • H01F706
    • H01H71/125Y10T29/4902Y10T29/49071Y10T29/49073
    • 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).
    • 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)。
    • 6. 发明授权
    • Armature for latching a circuit breaker trip unit
    • 用于锁定断路器跳闸单元的电枢
    • US06232860B1
    • 2001-05-15
    • US09602788
    • 2000-06-23
    • Pedro AcevedoJavier I. LarranagaJoseph CrinitiThomas R. CampbellJose Velez
    • Pedro AcevedoJavier I. LarranagaJoseph CrinitiThomas R. CampbellJose Velez
    • H01H920
    • H01H71/505H01H71/405H01H71/524
    • 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.
    • 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。