公开(公告)号：US20090277768A1

公开(公告)日：2009-11-12

申请号：US12117470

申请日：2008-05-08

申请人： Nicholas Brusky ,  Kurt Lawrence Lindsey

发明人： Nicholas Brusky ,  Kurt Lawrence Lindsey

IPC分类号： H01H35/18

CPC分类号： H01H1/2058 ,  H01H9/34 ,  H01H33/121 ,  H01H71/142 ,  H01H71/40 ,  H01H71/56 ,  H01H77/10

摘要： A fault interrupter and load break switch includes a trip assembly configured to automatically open a transformer circuit electrically coupled to stationary contacts of the switch upon the occurrence of a fault condition. The fault condition causes a Curie metal element electrically coupled to at least one of the stationary contacts to release a magnetic latch. The release causes a trip rotor of the trip assembly to rotate a rotor assembly. This rotation causes ends of a movable contact of the rotor assembly to electrically disengage the stationary contacts, thereby opening the circuit. The switch also includes a handle for manually opening and closing the electrical circuit in fault and non-fault conditions. Actuation of the handle coupled to the rotor assembly via a spring-loaded rotor causes the movable contact ends to selectively engage or disengage the stationary contacts.

摘要翻译： 故障断路器和负载断路开关包括跳闸组件，其被配置为在发生故障状态时自动打开电耦合到开关的静止触点的变压器电路。 故障状况导致居里金属元件电耦合到至少一个固定触点以释放磁性锁存器。 释放导致跳闸组件的跳闸转子旋转转子组件。 该旋转使得转子组件的可动触点的端部电动地脱离固定触点，从而打开电路。 该开关还包括用于在故障和非故障条件下手动打开和关闭电路的手柄。 通过弹簧加载的转子联接到转子组件的手柄的致动使得可动接触端部选择性地接合或脱离固定触点。

公开(公告)号：US07403087B2

公开(公告)日：2008-07-22

申请号：US11235155

申请日：2005-09-27

申请人： Ki-Hwan Oh

发明人： Ki-Hwan Oh

IPC分类号： H01H9/00

CPC分类号： H01H77/10 ,  H01H2077/025

摘要： A pressure trip device for a circuit breaker comprises a plurality of single pole switching units, each unit corresponding to each electrical phase hermetically mounting movable contactors and fixed contactors in an insulated case in order to switch electrical circuits according to each phase, having arc gas exhaust port, and connected to one another by a shaft; a switching mechanism connected to one of the single pole switching units for contacting or separating the movable contactor of the connected single pole switching unit to/from the fixed contactor of the connected single pole switching unit; a trip bar connected to the switching mechanism for tripping the switching mechanism; a gas pressure shooter facing the trip bar, and perpendicularly movable between a position for rotating the trip bar by a pressurization and a position separated from the trip bar; and a protrusion wall portion having a pair of wall portions facing to each other and perpendicularly extending from at least one outer surface of each case of the single pole switching units, having one wall portion for connecting lower ends of the pair of wall portions to each other, and forming a gas pressure storing space for supporting the gas pressure shooter to be perpendicularly movable and connected to the arc gas exhaust port. Accordingly, the circuit breaker is tripped faster than the conventional one using a tripping process by mechanisms of multi-step.

摘要翻译： 用于断路器的压力跳闸装置包括多个单极开关单元，每个单元对应于每个电相密封地安装在绝缘壳体中的活动接触器和固定接触器，以便根据每相切换电路，具有电弧气体排出 端口，并通过轴相互连接; 连接到单极开关单元中的一个的开关机构，用于将连接的单极开关单元的可动接触器与所连接的单极开关单元的固定接触器接触或分离; 连接到切换机构的跳闸杆，用于使开关机构跳闸; 面向跳闸杆的气体压力枪，并且可以通过加压旋转跳闸杆的位置和与跳闸杆分离的位置之间垂直移动; 以及具有一对壁部的突出壁部分，所述一对壁部彼此相对并且从所述单极开关单元的每个壳体的至少一个外表面垂直延伸，具有一个壁部分，用于将所述一对壁部分的下端连接到每个 并且形成用于支撑气体压力枪的气体压力存储空间以能够垂直移动并连接到电弧气体排出口。 因此，断路器比使用通过多级机构的跳闸过程的传统断路器更快地跳闸。

公开(公告)号：US20070041138A1

公开(公告)日：2007-02-22

申请号：US10564037

申请日：2004-07-01

申请人： Kaveh Niayesh ,  Friedrich Konig

发明人： Kaveh Niayesh ,  Friedrich Konig

IPC分类号： H02H3/08

CPC分类号： H01H77/10 ,  H01H29/006 ,  H01H53/08

摘要： The invention relates to a process and a device (1) for combined current limiting and circuit breaking and to a switchgear assembly with such a device (1). In a combined current limiter-circuit breaker (1) as claimed in the invention, a movable electrode (3, 3′) on the one hand for current limitation is guided automatically along one resistance element (5) for the current limitation path (31) by an overcurrent-dependent electromagnetic force (Fmag) and on the other hand for circuit breaking is moved into a series arrangement with an insulator (8). Embodiments include the following, among others: Use of the Lorenz force for automatic current limiting; movable electrode (3, 3′) implemented by liquid metal (3) or movable solid-state conductor (3′); an electrical resistance (Rx) which increases nonlinearly in the direction of motion (x) for a gentle current limiting characteristic; and a resistance element (5) in the form of a dielectric matrix (5) with several channels (3a) for the liquid metal (3). Advantages are among others: arc-free, reversible current limitation and current interruption, also suited for high voltages and currents, fast reaction times, low wear, and ease of maintenance.

摘要翻译： 本发明涉及一种用于组合限流和断路的装置（1）和具有这种装置（1）的开关装置。 在根据本发明的组合限流器断路器（1）中，一方面用于限流的可动电极（3,3'）自动地沿着用于电流限制路径（31）的一个电阻元件（5）被引导 ），另一方面为了断路，与绝缘体（8）一起移动成串联布置。 实施例包括以下内容：使用洛伦兹力进行自动限流; 由液态金属（3）或可移动固态导体（3'）实现的可动电极（3,3'）; 对于温和电流限制特性，在运动方向（x）上非线性地增加的电阻（R x x S）; 和具有用于液态金属（3）的多个通道（3a））的介质矩阵（5）形式的电阻元件（5）。 优点在于：无弧，可逆电流限制和电流中断，也适用于高电压和电流，反应时间快，磨损小，易于维护。

公开(公告)号：US20060077023A1

公开(公告)日：2006-04-13

申请号：US11235155

申请日：2005-09-27

申请人： Ki-Hwan Oh

发明人： Ki-Hwan Oh

IPC分类号： H01H9/00

CPC分类号： H01H77/10 ,  H01H2077/025

摘要： A pressure trip device for a circuit breaker comprises a plurality of single pole switching units, each unit corresponding to each electrical phase hermetically mounting movable contactors and fixed contactors in an insulated case in order to switch electrical circuits according to each phase, having arc gas exhaust port, and connected to one another by a shaft; a switching mechanism connected to one of the single pole switching units for contacting or separating the movable contactor of the connected single pole switching unit to/from the fixed contactor of the connected single pole switching unit; a trip bar connected to the switching mechanism for tripping the switching mechanism; a gas pressure shooter facing the trip bar, and perpendicularly movable between a position for rotating the trip bar by a pressurization and a position separated from the trip bar; and a protrusion wall portion having a pair of wall portions facing to each other and perpendicularly extending from at least one outer surface of each case of the single pole switching units, having one wall portion for connecting lower ends of the pair of wall portions to each other, and forming a gas pressure storing space for supporting the gas pressure shooter to be perpendicularly movable and connected to the arc gas exhaust port. Accordingly, the circuit breaker is tripped faster than the conventional one using a tripping process by mechanisms of multi-step.

摘要翻译： 用于断路器的压力跳闸装置包括多个单极开关单元，每个单元对应于每个电相密封地安装在绝缘壳体中的活动接触器和固定接触器，以便根据每相切换电路，具有电弧气体排出 端口，并通过轴相互连接; 连接到单极开关单元中的一个的开关机构，用于将连接的单极开关单元的可动接触器与所连接的单极开关单元的固定接触器接触或分离; 连接到切换机构的跳闸杆，用于使开关机构跳闸; 面向跳闸杆的气体压力枪，并且可以通过加压旋转跳闸杆的位置和与跳闸杆分离的位置之间垂直移动; 以及具有一对壁部的突起壁部分，所述一对壁部彼此相对并且从所述单极开关单元的每个壳体的至少一个外表面垂直延伸，具有一个壁部分，用于将所述一对壁部分的下端连接到每个 并且形成用于支撑气体压力枪的气体压力存储空间以能够垂直移动并连接到电弧气体排出口。 因此，断路器比通过多步机构使用跳闸过程的传统断路器更快跳闸。

公开(公告)号：US20030000814A1

公开(公告)日：2003-01-02

申请号：US09681963

申请日：2001-06-29

发明人： Patrick McGill ,  Dennis Zuffelato ,  Thuong Phung ,  Javier Larranaga ,  Mani Natarajan ,  Agali Ramadevi ,  AnilKumar D. Pandit

IPC分类号： H01H013/00 ,  H01H015/00

CPC分类号： H01H50/546 ,  H01H77/10 ,  Y10T29/49002 ,  Y10T29/49105 ,  Y10T29/49117 ,  Y10T29/49204 ,  Y10T29/49208 ,  Y10T29/4921

摘要： A method for restricting travel of a moving contact in a lighting contactor is provided. The lighting contactor includes the moving contact and a contact carrier. The method includes the steps of providing a spacer, and a biasing member and positioning the biasing member though the spacer. The method also includes installing the biasing member and the spacer in the contact carrier.

摘要翻译： 提供了一种用于限制照明接触器中的移动触点的移动的方法。 照明接触器包括移动触点和触点托架。 该方法包括提供间隔件和偏置构件的步骤，并且通过间隔件定位偏置构件。 该方法还包括将偏置构件和间隔件安装在接触载体中。

公开(公告)号：US06377143B1

公开(公告)日：2002-04-23

申请号：US09681320

申请日：2001-03-16

申请人： Xin Zhou ,  Michael Thomas Little

发明人： Xin Zhou ,  Michael Thomas Little

IPC分类号： H01H6702

CPC分类号： H01H50/546 ,  H01H3/001 ,  H01H77/06 ,  H01H77/10 ,  H01H2009/305 ,  H01H2077/025

摘要： A system and method for preventing contact weld under various fault current conditions is disclosed. The system includes a contactor having stationary and movable contacts biased towards each other and switchable between an open and closed position. Energization of an electromagnetic coil engages the contacts creating an electric path for current flow through the contactor. Pulse width modulation is used to lower the power to the coil and maintain the contacts in the closed position. The contactor is equipped with safeguards to prevent contact welding. Under low fault currents, welding is prevented by contact material composition. Under intermediate fault currents, the contacts are blown open and remain open using magnetic components until the arc dissipates and the contacts have cooled sufficiently. Under high fault currents, the arrangement causes the contacts to blow open and separate the armature from the coil preventing re-engagement of the contacts until the coil is energized again.

摘要翻译： 公开了一种用于在各种故障电流条件下防止接触焊接的系统和方法。 该系统包括接触器，该接触器具有相对于彼此偏置并且可在打开和关闭位置之间切换的固定和可移动接触件。 电磁线圈的通电接触触点，产生电流通过接触器的电路。 脉冲宽度调制用于降低线圈的功率并将触点保持在关闭位置。 接触器配有防止触点焊接的保护措施。 在低故障电流下，通过接触材料成分防止焊接。 在中间故障电流下，触点被打开并使用磁性部件保持开放，直到电弧消失，并且触点已经充分冷却。 在高故障电流下，这种布置使得触头打开并将电枢与线圈分离，从而防止触点的再次接合，直到线圈再次通电。

公开(公告)号：US5917390A

公开(公告)日：1999-06-29

申请号：US120838

申请日：1998-07-22

申请人： Thomas F. Papallo, Jr. ,  Randall L. Greenberg

发明人： Thomas F. Papallo, Jr. ,  Randall L. Greenberg

IPC分类号： H01H77/10 ,  H01H75/00

CPC分类号： H01H77/107 ,  H01H77/10

摘要： A circuit breaker having a shunting contact structure with low watts loss and high withstand level. The circuit breaker of the present invention comprises an upper contact arm having a first contact disposed thereon and a lower contact arm having second and third contacts thereon with the second contact mating with the first contact. A shunt terminal is provided between the upper contact arm and the lower contact arm. The shunt terminal includes a fourth contact which mates with the third contact on the lower contact arm. The circuit breaker of the current invention has a closed, open and current limiting position. When the circuit breaker is conducting nominal rated current, the first, second, third and fourth contacts remain closed. When the circuit breaker is under fault conditions which are circuit current conditions above the withstand level, the circuit breaker switches to a current limiting mode. In this mode, the upper contact arm and the lower contact arm move simultaneously in an upward and downward manner respectively, thereby opening the third and fourth contacts resulting in a blow open loop that opens the first and second contacts and protect a load coupled to the device from overcurrent conditions.

摘要翻译： 具有低瓦特损耗和高耐受水平的分流接触结构的断路器。 本发明的断路器包括具有设置在其上的第一触点的上接触臂和具有第二和第三触点的下接触臂，其中第二触点与第一触点配合。 在上接触臂和下接触臂之间设有并联端子。 分流端子包括与下触点臂上的第三触点配合的第四触点。 本发明的断路器具有闭合，断开和限流位置。 当断路器导通标称额定电流时，第一，第二，第三和第四触点保持闭合。 当断路器处于高于耐受水平的电路电流状态的故障条件下时，断路器切换到限流模式。 在这种模式中，上接触臂和下接触臂分别同时上下移动，从而打开第三和第四触点，从而产生打开开环，打开第一和第二触点并保护耦合到 设备从过流条件。

公开(公告)号：US5663544A

公开(公告)日：1997-09-02

申请号：US532654

申请日：1995-11-20

申请人： Lutz Niemeyer

发明人： Lutz Niemeyer

IPC分类号： H01H33/14 ,  H01H33/666 ,  H01H77/10 ,  H01H33/66

CPC分类号： H01H33/6661 ,  H01H33/143 ,  H01H77/10

摘要： A device for switching electric current includes a compressed gas switch, at least one vacuum switch, and two terminals. A first consumable contact of the compressed gas switch is electrically connected to a first of the two terminals and a movable electrode of the vacuum switch is connected to a second of the two terminals to form a quenching circuit. The two electrodes of the vacuum switch can be separated without the use of the drive and a contact pressure is applied to them which prevents the electrodes from breaking below a threshold value of the current to be switched off. On switch-off, the current to be interrupted is switched over from a rated current circuit containing two rated current contacts of the compressed gas switch to the parallel quenching circuit. The vacuum switch now in the quenching circuit breaks only if the current to be switched off exceeds the aforementioned threshold. As the vacuum switch does not conduct the rated current and, unlike the compressed gas switch, is involved only in a few break operations, it can be of substantially lighter construction than a vacuum switch carrying the rated current and is actuated in every switching operation.

摘要翻译： PCT No.PCT / CH95 / 00010 Sec。 371日期：1995年11月20日 102（e）1995年11月20日日期PCT 1995年1月16日PCT PCT。 公开号WO95 / 22831 日期1995年8月24日用于切换电流的装置包括压缩气体开关，至少一个真空开关和两个端子。 压缩气体开关的第一消耗性触点电连接到两个端子中的第一个，并且真空开关的可动电极连接到两个端子中的第二个端子以形成淬火电路。 真空开关的两个电极可以在不使用驱动器的情况下被分离，并且对它们施加接触压力，从而防止电极破坏到要切断的电流的阈值以下。 在关断时，要中断的电流从包含压缩气体开关的两个额定电流触点的额定电流电路切换到并联淬火电路。 现在淬火电路中的真空开关只有在要关闭的电流超过上述阈值时才会断开。 由于真空开关不传导额定电流，与压缩气体开关不同，仅涉及几个断路操作，因此它可以具有比承载额定电流的真空开关更简单的结构，并且在每个开关操作中被启动。

公开(公告)号：US5579198A

公开(公告)日：1996-11-26

申请号：US537215

申请日：1995-09-29

申请人： Christopher J. Wieloch ,  Mark A. Kappel ,  Jeffrey R. Annis ,  David J. Benard ,  Ellen Boehmer ,  Gernot Hildebrandt

发明人： Christopher J. Wieloch ,  Mark A. Kappel ,  Jeffrey R. Annis ,  David J. Benard ,  Ellen Boehmer ,  Gernot Hildebrandt

IPC分类号： H01H77/06 ,  H01H77/10 ,  H01H73/00

CPC分类号： H01H77/10 ,  H01H77/06

摘要： A circuit interrupter provides a conducting path between two conductors and interrupts the conducting path in response to overcurrent conditions in the conductors. The interrupter includes a magnetic core around which the conductors are disposed. Each conductor is electrically coupled to an arc runner and a spanner is biased into contact with the arc runners to compete a conducting path between the conductors. A secondary response mechanism is provided adjacent to the core and includes arms extending around the core and a magnetic body. In response to overcurrent conditions of a first magnitude the body of the secondary response mechanism is attracted to the core causing the arms to displace the spanner out of contact with the arc runners. In response to overcurrent conditions of a second magnitude, such as due to direct short circuits, the spanner is repelled rapidly to a non-conducting position and the secondary response mechanism is attracted to the core to hold the spanner in the non-conducting position. The core shapes an electromagnetic field due to current in the conductors and the field causes extremely rapid expansion of arcs generated during movement of the spanner, resulting in very fast extinction of the arcs and a very brief turnoff time.

公开(公告)号：US5565826A

公开(公告)日：1996-10-15

申请号：US318789

申请日：1994-10-14

申请人： Per Olof Karlstrom

发明人： Per Olof Karlstrom

IPC分类号： H01H85/06 ,  H01C7/02 ,  H01C7/13 ,  H01H77/10 ,  H02H9/02 ,  H01H75/00

CPC分类号： H02H9/026 ,  H01C7/027 ,  H01C7/13 ,  H01H77/10

摘要： The protective device for protecting against over currents in electric circuits includes at least one electrically conductive body and two electrodes which function to supply circuit current through the conductive body and which lie against the conductive body at corresponding positions either directly or through the medium of an intermediate part. An abutment pressure is applied to the electrode so that the electrodes are maintained in abutment at the corresponding positions of the conductive body. When the devices are subjected to high short circuiting currents, the current density in the deformed abutment surfaces of the conductive body will increase, thus increasing the resistance of the device.

摘要翻译： 用于防止电路中的过电流的保护装置包括至少一个导电体和两个电极，其功能是通过导电体提供电路电流，并且在直接或通过中间体的介质的相应位置处抵靠导电体 部分。 对电极施加邻接压力，使得电极保持在导电体的相应位置上邻接。 当器件受到高的短路电流时，导电体的变形的邻接表面中的电流密度将增加，从而增加器件的电阻。