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公开(公告)号：US4129843A
公开(公告)日：1978-12-12
申请号：US729699
申请日：1976-10-05
CPC分类号： H01H71/345 , H01H71/7409
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US3987382A
公开(公告)日：1976-10-19
申请号：US598052
申请日：1975-07-22
申请人： John B. Cataldo , Frank W. Kussy , Frank R. Keller
发明人： John B. Cataldo , Frank W. Kussy , Frank R. Keller
CPC分类号： H01H71/121 , H01H71/7409 , H01H77/10 , H01H89/06
摘要： A unitized combination motor starter is provided with a single insulated housing wherein a plurality of pole units are disposed side-by-side. Each pole unit includes a circuit breaker contact section and a contactor contact section. A spring powered mechanism for circuit breaker operation is disposed on one side of the pole units and an electromagnet for contactor operation is disposed on the other side of the pole units. The current carrying elements of each pole unit are arranged to provide a current loop having relatively close opposing arms so that large mechanical forces accompany high magnitude current flow. These forces are directed so as to produce a blow-off effect at the circuit breaker contacts, resulting in current limiting action to protect the contactor contacts. A removable and replaceable overload sensing electromagnet is provided for each of the pole units, and the coils thereof are of relatively high impedance to act as a current limiter during short circuit conditions to thereby protect heaters of overload relays connected in series with the unitized combination.
摘要翻译： 单元组合电动机起动器设置有单个绝缘壳体，其中多个极单元并排布置。 每个极单元包括断路器接触部分和接触器接触部分。 用于断路器操作的弹簧动力机构设置在极单元的一侧，并且用于接触器操作的电磁体设置在极单元的另一侧。 每个极单元的电流承载元件布置成提供具有相对较靠近的相对臂的电流回路，使得大的机械力伴随着高电流的流动。 引导这些力以便在断路器触点处产生泄流效应，从而产生限流作用以保护接触器触点。 为每个极单元提供可移动和可更换的过载感测电磁体，并且其线圈具有相对较高的阻抗，以在短路条件期间用作限流器，从而保护与单元化组合串联连接的过载继电器的加热器。
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公开(公告)号：US4107488A
公开(公告)日：1978-08-15
申请号：US746833
申请日：1976-12-02
摘要： An electric switch mounted within an enclosure having a hinged cover is manually operated from outside the enclosure by a handle mechanism secured to the enclosure. The cover is provided with a single aperture near the edge thereof remote from the cover hinges, with this aperture providing clearance for the operating handle of the mechanism when the cover is closed and also providing clearance for a catch which holds the cover closed. The mechanism also includes a defeatable cover interlock to prevent opening of the cover when the switch is closed, and a defeatable switch interlock to prevent closing of the switch when the cover is open.
摘要翻译： 安装在具有铰接盖的外壳内的电开关通过固定到外壳的手柄机构从外壳的外部手动操作。 该盖在远离盖铰链的边缘附近设置有单个孔，当盖封闭时，该孔为机构的操作手柄提供间隙，并且还为保持盖封闭的卡扣提供间隙。 该机构还包括一个可击倒的盖互锁，以防止开关关闭时盖的打开，以及一个可击倒的开关互锁，以防止盖盖打开时关闭开关。
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公开(公告)号：US4346357A
公开(公告)日：1982-08-24
申请号：US104621
申请日：1979-12-17
CPC分类号： H01H71/2418 , H01H89/06
摘要： A molded housing contains a pair of cooperating contacts arranged to be magnetically blown open and an arc chute therefor. The contacts are biased closed and there is no mechanism for manually operating or latching open the contacts. The magnetically blown-open contacts are connected in series with respective poles of a conventional circuit interrupter which also has magnetically blown open contacts but which also has manual operating means and latch means for the contact system.
摘要翻译： 模制壳体包括一对配置为被开放的合作触点和用于其的电弧槽。 触点被偏置闭合，并且没有用于手动操作或锁定打开触点的机构。 磁开式触点与常规断路器的相应磁极串联连接，电路断路器也具有磁性开放触点，但也具有用于接触系统的手动操作装置和闩锁装置。
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公开(公告)号：US4513267A
公开(公告)日：1985-04-23
申请号：US479367
申请日：1983-03-28
申请人： David P. McClellan , Frank W. Kussy
发明人： David P. McClellan , Frank W. Kussy
CPC分类号： H01H77/107 , H01H1/18 , H01H1/5833 , H01H2001/5838 , H01H77/101 , H01H77/104
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US4088973A
公开(公告)日：1978-05-09
申请号：US681243
申请日：1976-04-28
CPC分类号： H01H71/7409 , H01H89/06 , H01H9/342
摘要： A unitized combination motor starter is provided with a single insulated housing wherein a plurality of pole units are disposed in side-by-side relationship. The pole units are electrically connected in series with an electromagnetic contactor disposed within the insulated housing and located at one end of the pole units. A spring powered contact operating mechanism for the pole units is disposed on one side of the pole units. An overload sensing electromagnet coil, provided for each of the pole units, is positioned for removal and replacement after opening the front cover of the insulated housing.
摘要翻译： 单元组合电动机起动器设置有单个绝缘壳体，其中多个极单元以并排的关系设置。 极单元与设置在绝缘壳体内并位于极单元的一端的电磁接触器串联电连接。 用于极单元的弹簧接触操作机构设置在极单元的一侧。 设置用于每个极单元的过载感测电磁线圈定位成在打开绝缘壳体的前盖之后移除和更换。
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公开(公告)号：US4551697A
公开(公告)日：1985-11-05
申请号：US573157
申请日：1984-01-23
申请人： Frank W. Kussy
发明人： Frank W. Kussy
IPC分类号： H01H9/02 , H01H9/34 , H01H71/10 , H01H71/12 , H01H71/46 , H01H71/52 , H01H71/74 , H01H77/10 , H01H75/00
CPC分类号： H01H71/1009 , H01H77/10 , H01H2071/2427 , H01H71/123 , H01H71/126 , H01H71/128 , H01H71/46 , H01H71/522 , H01H71/7409 , H01H9/0264 , H01H9/34
摘要： The invention concerns a very simple and effective current limiting circuit breaker of great versatility which is especially adaptable for motor control centers and combinations starters. That breaker can be used with various interchangeable trip units always with the same basic mechanism.(a) for instantaneous trip type circuit breakers of various current ratings having high interrupting capacity and low I.sup.2 t value to protect control equipment at high fault currents.(b) for high interrupting capacity thermal magnetic circuit breakers at various current ratings.(c) for circuit breakers with solid state tripping units to protect against overloads, short circuits, single phasing, underloads, etc.
摘要翻译： 本发明涉及一种非常简单有效的限流断路器，具有很大的通用性，特别适用于电机控制中心和组合起动器。 该断路器可以与各种可互换的跳闸单元一起使用，总是具有相同的基本机构。 （a）用于具有高中断容量和低I2t值的各种额定电流的瞬时脱扣型断路器，用于在高故障电流下保护控制设备。 （b）用于各种额定电流的高中断容量热磁断路器。 （c）具有固态跳闸单元的断路器，以防止过载，短路，单相，欠载等。
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公开(公告)号：US4484164A
公开(公告)日：1984-11-20
申请号：US479365
申请日：1983-03-28
申请人： David P. McClellan , Frank W. Kussy
发明人： David P. McClellan , Frank W. Kussy
CPC分类号： H01H1/22 , H01H1/18 , H01H1/5833 , H01H71/501 , H01H77/104
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US4258343A
公开(公告)日：1981-03-24
申请号：US11611
申请日：1979-02-12
申请人： Frank W. Kussy
发明人： Frank W. Kussy
CPC分类号： H01H77/107 , H01H89/06
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US4849590A
公开(公告)日：1989-07-18
申请号：US176718
申请日：1988-04-01
CPC分类号： H01H1/54 , H01H9/44 , H01H2300/018 , H01H9/36 , H01H9/46
摘要： A switch has contacts constructed so that an electro-dynamic force is created by the current flowing through the switch which tends to maintain the switch in a closed state. This force counteracts other electro-dynamic forces which tend to open the switch. The contact design is particularly adapted from use in a single pole-double throw switch having a contact arm that is movable between two fixed contacts. The electro-dynamic force compensation exists between the contact arm and whichever one of the fixed contacts the contact arm is against. The fixed contacts also include arc runners so that any arc that develops as the contacts separate eliminates electro-dynamic force which tends to maintain the switch in a closed state.
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