公开(公告)号：US20050286195A1

公开(公告)日：2005-12-29

申请号：US11159784

申请日：2005-06-23

申请人： Roderick Francis

发明人： Roderick Francis

IPC分类号： H01C1/14 ,  H01C7/02 ,  H01C7/12 ,  H01H81/04 ,  H02H5/04 ,  H02H9/02

CPC分类号： H01C1/1406 ,  H01C7/02 ,  H01C7/12 ,  H01H81/02 ,  H02H3/025 ,  H02H3/085 ,  H02H9/026

摘要： An overcurrent protection circuit for low-voltage, high-current electrical systems comprises a Positive Temperature Coefficient (PTC) resistor in series with an auto-reset thermal breaker. The breaker allows for intermittent current within an assumed product usage duty cycle, and repeatedly trips and resets on sustained high current usage or during a short-circuit fault. The PTC resistor limits current in the system to a low value when the temperature rises to the PTC resistor's trip point. The PTC resistor protects the system from thermal damage during the non-breaker-tripped portions of sustained high current use, or during continuous low-current use. The use of both the PTC resistor and auto-reset breaker provides thermal overcurrent protection while allowing for performance claims based on an assumed duty cycle of product use.

摘要翻译： 用于低压，大电流电气系统的过电流保护电路包括与自动复位热断路器串联的正温度系数（PTC）电阻器。 断路器允许在假设产品使用占空比内的间歇电流，并且在持续的高电流使用或短路故障期间重复跳闸和复位。 当温度升高到PTC电阻的跳变点时，PTC电阻将系统中的电流限制在较低的值。 PTC电阻可在持续高电流使用的非断路器跳闸部分或连续低电流使用期间保护系统免受热损坏。 使用PTC电阻和自动复位断路器提供热过电流保护，同时允许基于产品使用的假定占空比的性能要求。

公开(公告)号：US3271630A

公开(公告)日：1966-09-06

申请号：US28707263

申请日：1963-06-11

申请人： TORIO COMPANY LTD

发明人： KAZUMICHI MIYAZAWA

IPC分类号： H01H81/04

CPC分类号： H01H81/04

公开(公告)号：US2262344A

公开(公告)日：1941-11-11

申请号：US32228640

申请日：1940-03-05

申请人： PENN ELECTRIC SWITCH CO

发明人： SHAW BURTON E

IPC分类号： H01H81/04

CPC分类号： H01H81/04

公开(公告)号：US1997463A

公开(公告)日：1935-04-09

申请号：US33104329

申请日：1929-01-08

申请人： GEN MOTORS CORP

发明人： MARTIN KELLY JOHN

IPC分类号： H01H81/04

CPC分类号： H01H81/04

公开(公告)号：US08749329B2

公开(公告)日：2014-06-10

申请号：US13446888

申请日：2012-04-13

申请人： Michael Fasano

发明人： Michael Fasano

IPC分类号： H01H75/10 ,  H01H77/06 ,  H01H81/04

CPC分类号： H01H71/2409 ,  H01H71/2463 ,  H01H71/44

摘要： A circuit interrupter has a first contact, a second contact, and a trip arm which moves the second contact between a closed position where the second contact is touching the first contact and an open position in which the second contact is spaced apart from the first contact. A first trip mechanism has a first solenoid, a first overcurrent sensor, and a first arm. A second trip mechanism has a second solenoid, a second overcurrent sensor, and a second arm. The first trip mechanism activates the first arm after a first threshold amount of time which actuates the trip arm when the first overcurrent sensor detects a first threshold level. The second trip mechanism activates the second arm after a second threshold amount of time which actuates the trip arm when the second overcurrent sensor detects a second threshold level, the second threshold level being different than the first.

摘要翻译： 电路断续器具有第一接触件，第二接触件和跳闸臂，其将第二接触件移动到第二接触件接触第一接触件的闭合位置和第二接触件与第一接触件间隔开的打开位置 。 第一跳闸机构具有第一螺线管，第一过电流传感器和第一臂。 第二跳闸机构具有第二螺线管，第二过电流传感器和第二臂。 当第一过电流传感器检测到第一阈值电平时，第一跳闸机构在第一阈值时间量激活第一臂，其致动跳闸臂。 第二跳闸机构在第二过渡电流传感器检测到第二阈值电平，第二阈值电平不同于第一阈值电平的第二阈值时间之后激活第二臂。

公开(公告)号：US08040209B2

公开(公告)日：2011-10-18

申请号：US12701305

申请日：2010-02-05

申请人： Salaheddine Faik ,  Dennis W Fleege

发明人： Salaheddine Faik ,  Dennis W Fleege

IPC分类号： H01H75/10 ,  H01H77/06 ,  H01H81/04 ,  H01H9/00

CPC分类号： H01H71/7463 ,  H01H71/2472

摘要： A divided armature for the trip mechanism of a circuit breaker especially useful for low trip current breakers allows for two independent adjustments: first of the magnetic air gap between the yoke and the armature and second of the clearance between the trip bar and the back plate of the armature. The divided armature allows the force of a return spring of the trip mechanism to be unchanged while adjusting the magnetic air gap to set the trip current point.

摘要翻译： 用于断路器跳闸机构的分接电枢，特别适用于低跳闸电流断路器，允许进行两次独立的调整：磁轭和电枢之间的第一磁性气隙和跳闸杆与背板之间的间隙中的第二个 电枢。 分离的电枢允许跳闸机构的复位弹簧的力不变，同时调节磁气隙以设定跳闸电流点。

公开(公告)号：US07859369B2

公开(公告)日：2010-12-28

申请号：US12135711

申请日：2008-06-09

申请人： Edward E. Lias ,  Michael J. Whipple ,  Jeffrey S. Gibson

发明人： Edward E. Lias ,  Michael J. Whipple ,  Jeffrey S. Gibson

IPC分类号： H01H81/04 ,  H01H75/08 ,  H01H77/04 ,  H01H81/02 ,  H01H71/16 ,  H01H61/00

CPC分类号： H01H69/01 ,  H01H71/16 ,  H01H2011/0075

摘要： A circuit breaker test system includes a circuit breaker under test having a deformable frame with an elongated slot, an elongated deformable portion adjacent the elongated slot and a movable portion adjacent the deformable portion, and a thermal trip assembly coupled to the movable portion. A calibration device includes a forked tool straddling the deformable portion. The trip assembly has a first thermal response. The calibration device rotates the tool in a first rotational direction and responsively deforms the deformable portion and moves the movable portion in a first direction, in order to calibrate the trip assembly for a second different thermal response. The calibration device rotates the tool in an opposite second rotational direction and responsively deforms the deformable portion and moves the movable portion in an opposite second direction, in order to re-calibrate the trip assembly for a third thermal response between the first and second thermal responses.

摘要翻译： 断路器测试系统包括被测试的断路器，其具有带有细长槽的可变形框架，与细长槽相邻的细长可变形部分和与可变形部分相邻的可移动部分以及耦合到可移动部分的热脱扣组件。 校准装置包括跨过可变形部分的叉形工具。 跳闸组件具有第一热响应。 校准装置使工具沿第一旋转方向旋转并且响应地使可变形部分变形并沿第一方向移动可动部分，以便校准跳闸组件以获得第二不同的热响应。 校准装置以相反的第二旋转方向旋转工具，并且响应地使可变形部分变形并且沿相反的第二方向移动可动部分，以便重新校准跳闸组件以在第一和第二热响应之间进行第三热响应 。

公开(公告)号：US5828196A

公开(公告)日：1998-10-27

申请号：US917054

申请日：1997-08-22

申请人： Engelbert Hetzmannseder

发明人： Engelbert Hetzmannseder

IPC分类号： H01H81/04 ,  H01H51/06 ,  H01H77/06 ,  H01H77/10 ,  H01H89/06 ,  H02P3/08 ,  H02P3/18 ,  H02P7/18 ,  H02P23/00 ,  H02K17/32

CPC分类号： H01H89/06 ,  H01H2089/065 ,  H01H77/06 ,  H01H77/10

摘要： A bypass circuit conducts electrical current around a motor starter to a current limiting switch assembly upon initiation of a flow of excessive electrical current to an electric motor to protect the motor starter against excessive current flow. Upon initiation of excessive current flow to the electric motor, the current limiting switch assembly opens a main circuit to interrupt current flow through the motor starter. The current limiting switch assembly includes a conductor or contact carrier which is movable from an initial position to an actuated position under the combined influence of current flow through a coil and opposition between magnetic fields from portions of an electrical circuit through which current flows in opposite directions.

摘要翻译： 旁路回路在开始向电动机流过过大的电流时将电动机起动器周围的电流传导到限流开关组件，以保护电动机启动器免受过度电流的影响。 当开始对电动机的电流过大时，限流开关组件打开主电路以中断通过电动机启动器的电流。 电流限制开关组件包括导体或接触载体，该导体或触点载体在电流流过线圈的电流的组合影响下可从初始位置移动到致动位置，并且在电流相对于来自电路沿着相反方向流动的电路的部分 。

公开(公告)号：US3725830A

公开(公告)日：1973-04-03

申请号：US3725830D

申请日：1972-03-24

申请人： MC GRAW EDISON CO

发明人： RIGERT M

IPC分类号： H01H75/04 ,  H01H81/04

CPC分类号： H01H75/04

摘要： A reclosing circuit breaker having a fault overcurrent time delay means and an operation counting means. The opening time delay means selectively permits one or more fast opening operations and then, in response to a pumping force by a spring charged during a previous opening operation, blocks an oil exhaust port so that subsequent opening operations are time delayed. The operation counting means is advanced a predetermined step distance for each opening operation of the circuit breaker and is held in each advanced step until just before reclosing of the circuit breaker. The step distance advanced and the point at which the counting means is released is controlled, in part, by a simple adjustment device. Depending on its initial setting, the counting means will permit a predetermined number of circuit breaker opening operations and then will actuate a means for locking open the circuit breaker.

摘要翻译： 一种具有故障过电流时间延迟装置和操作计数装置的重合闸路断路器。 打开时间延迟装置选择性地允许一个或多个快速打开操作，然后响应于在先前打开操作期间充入的弹簧的泵送力而阻塞排油口，从而随后打开操作被延时。 操作计数装置对断路器的每个打开操作进行预定的步距，并且保持在每个高级步骤中，直到断路器重新闭合为止。 步进距离提前，计数装置释放的点部分地由简单的调节装置控制。 根据其初始设置，计数装置将允许预定数量的断路器打开操作，然后将致动用于锁定打开断路器的装置。

公开(公告)号：US10483033B2

公开(公告)日：2019-11-19

申请号：US15841842

申请日：2017-12-14

申请人： FANUC CORPORATION

发明人： Masatomo Shirouzu ,  Kenichi Tsukada

IPC分类号： H01H81/04 ,  H01F30/04 ,  H01F27/28 ,  H01F27/40 ,  H01F27/24

摘要： An electromagnetic device includes an outer peripheral iron core, and at least three iron core coils which are in contact with or coupled to the inner surface of the outer peripheral iron core. The at least three iron core coils each include an iron core, and at least one of a primary coil and a secondary coil, which are wound around the iron core. The at least three iron core coils are arranged in a circle, and the iron core of one of the at least three iron core coils is in contact with the iron cores of the other iron core coils adjacent to the one iron core coil.