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    • 1. 发明授权
    • Stationary contact strap to achieve a current limiting blow-off effect
    • 固定接触带实现电流限制吹除效果
    • US4513267A
    • 1985-04-23
    • US479367
    • 1983-03-28
    • David P. McClellanFrank W. Kussy
    • David P. McClellanFrank W. Kussy
    • H01H73/02H01H1/18H01H1/58H01H77/10H01H77/02
    • H01H77/107H01H1/18H01H1/5833H01H2001/5838H01H77/101H01H77/104
    • A so-called blow-off type current limiting circuit breaker includes a stationary contact strap that is divided into three elongated closely spaced coplanar parallel arms that are connected to each other at one end of the strap. The stationary contact is mounted to the interior one of the parallel arms at the end thereof remote from the one end of the strap. A terminal portion of the strap connects exterior ones of the parallel arms to one another at the ends thereof remote from the one end of the strap. A movable contact engageable with and disengageable from the stationary contact is mounted to one end of a movable contact arm that is pivoted at its opposite end in the region of the one end of the strap, extending parallel to the arms of the strap and being aligned with the interior arm. Current in the interior arm flows in a direction opposite to the direction of current flow in the exterior arms and the movable contact arm. With the contact engaged, the interior arm and the movable contact arm are very close to one another so that upon the occurrence of severe fault current conditions, repelling electrodynamic forces of sufficient magnitude are developed between the movable contact arm and the interior arm to separate the contacts very rapidly, thereby limiting the magnitude of the fault current to a value within the rating of the circuit breaker.
    • 一种所谓的吹出式限流断路器包括固定接触带,该固定接触带被分成在带的一端彼此连接的三个细长紧密间隔的共面平行臂。 固定触点在远离皮带的一端的端部处安装到平行臂的内部。 带的端子部分将平行臂的外部的一个端部远离带的一端连接到另一端。 可移动触点可与固定触点接合并脱离的可移动触点安装在可动触头臂的一端,该可动触头臂在带的一端的区域中的相对端枢转,平行于带的臂延伸并对准 与内部臂。 内部臂中的电流沿与外部臂和可动接触臂中的电流方向相反的方向流动。 在触点接合的情况下,内臂和可动接触臂彼此非常接近,使得在发生严重的故障电流条件时,在可动接触臂和内臂之间产生足够大的电动力,从而将 接触非常快,从而将故障电流的大小限制在断路器额定值内。
    • 2. 发明授权
    • Braidless movable contact with wiping action
    • 无刷动触头带擦拭动作
    • US4484164A
    • 1984-11-20
    • US479365
    • 1983-03-28
    • David P. McClellanFrank W. Kussy
    • David P. McClellanFrank W. Kussy
    • H01H73/02H01H1/18H01H1/22H01H1/58H01H71/50H01H77/10H01H73/00
    • H01H1/22H01H1/18H01H1/5833H01H71/501H01H77/104
    • A so-called blow-off type current limiting circuit breaker is provided with an elongated movable contact arm that is pivotally mounted at one end thereof on a pin that projects from opposite sides of a support. The contact arm is constructed of parallel sections that are biased toward one another, by spring means disposed remote from the support, with the support being resiliently clamped between the sections to provide a good electrical connection between the support and contact arm. The pivot pin extends through aligned enlarged pivot apertures in the parallel sections to facilitate weld breaking. A wall of each pivot aperture is disposed to cooperate with the pivot pin to achieve a camming action that moves the contact arm slightly lengthwise after initial butting engagement of the circuit breaker main contacts to wipe the engaged contacts with respect to one another.
    • 所谓的吹出式限流断路器设置有细长的可动接触臂,该可动接触臂的一端枢转地安装在从支撑体的相对侧突出的销上。 接触臂由彼此偏置的平行部分构成,弹簧装置设置成远离支撑件,其中支撑件被弹性地夹紧在两个部分之间,以在支撑和接触臂之间提供良好的电连接。 枢轴销延伸穿过平行部分中对齐的扩大的枢轴孔,以便于焊接断裂。 每个枢轴孔的壁布置成与枢轴销配合以实现凸轮动作,以使得接触臂在初始对接接合断路器主触头之后稍微纵向地移动,从而相互擦拭啮合的触点。
    • 5. 发明授权
    • Magnetic trip means for circuit breaker
    • 断路器的磁跳闸装置
    • US4129843A
    • 1978-12-12
    • US729699
    • 1976-10-05
    • Frank R. KellerJohn B. CataldoFrank W. KussyBernard DiMarco
    • Frank R. KellerJohn B. CataldoFrank W. KussyBernard DiMarco
    • H01H71/34H01H71/74H01H9/00
    • H01H71/345H01H71/7409
    • A magnetic trip means for automatically opening a circuit breaker contact upon the occurrence of predetermined fault current conditions is constructed of a stationary yoke, an armature biased away from the yoke and movable toward the yoke for tripping of the switch, an actuating coil in series with the contacts, and a sealed capsule coaxial with the coil for obtaining selected tripping characteristics. Within the sealed capsule there is a movable magnetic core biased to a normal position extending substantially outside the coil. The core is movable inside of the coil toward the armature upon the occurrence of overload current conditions with movements of the core toward the armature being retarded in a controlled manner. Control is obtained by closely spacing the outer cylindrical wall of the core and the inner cylindrical wall of the capsule, and additionally by utilizing a viscous fluid within the capsule. For a given overload current, as the core moves closer to the armature there is an increased force acting to move the armature toward tripping position.
    • 用于在发生预定故障电流条件时自动断开断路器触点的磁跳闸装置由静止磁轭构成,电枢偏离磁轭偏置并且可朝向磁轭移动以使开关跳闸,致动线圈与 触点,以及与线圈同轴的密封胶囊,用于获得选定的脱扣特性。 在密封的胶囊内,有一个可移动的磁芯偏置到基本上在线圈外部延伸的正常位置。 在发生过载电流条件时,铁芯可以在线圈内部向电枢移动,由此铁芯朝向电枢的移动以受控的方式延迟。 通过将芯的外圆筒壁和胶囊的内圆柱壁紧密地间隔开,并且另外通过利用胶囊内的粘性流体来获得控制。 对于给定的过载电流,随着磁芯更靠近电枢,增加了作用以将电枢移动到跳闸位置的力。
    • 8. 发明授权
    • Unitized combination starter
    • 单元组合起动器
    • US4258343A
    • 1981-03-24
    • US11611
    • 1979-02-12
    • Frank W. Kussy
    • Frank W. Kussy
    • H01H77/10H01H89/06H01H73/00
    • H01H77/107H01H89/06
    • A unitized combination starter is constructed with circuit breaker and contactor sections, each of which is provided with a pair of spaced stationary contacts and a cooperating movable bridging contact. The bridging contacts are closely spaced, are parallel and carry currents which flow in opposite directions. Under severe fault conditions a strong blowoff effect is created to force both bridging contacts in their respective contact opening directions. This quickly places four air gaps in the current path to severely limit current rise and thereby facilitate circuit interruption.
    • 单元组合起动器由断路器和接触器部分构成,每个断路器和接触器部分均设置有一对间隔开的固定触头和一个可配合的可动桥接触头。 桥接触点紧密间隔开,平行并带有沿相反方向流动的电流。 在严重的故障条件下,产生强烈的吹除效应,以迫使桥接触头在它们各自的接触开口方向上。 这样可以快速地将四个气隙放置在电流路径中,严重限制电流上升,从而有助于电路中断。