公开(公告)号：US4603313A

公开(公告)日：1986-07-29

申请号：US771376

申请日：1985-08-30

申请人： Alan B. Shimp ,  William E. Beatty, Jr.

发明人： Alan B. Shimp ,  William E. Beatty, Jr.

IPC分类号： H01H73/38 ,  H01H71/12 ,  H01H71/52 ,  H01H71/74 ,  H01H73/06 ,  H01H73/36 ,  H01H73/48 ,  H01H9/00

CPC分类号： H01H71/525 ,  H01H71/123 ,  H01H71/128 ,  H01H2071/508 ,  H01H71/7409

摘要： A circuit breaker characterized by a pair of separable contacts, trip means operable automatically in response to overload current conditions to open the contacts which means include a rotatable trip bar biased in an untripped position, and interlock means including a manually operable button for rotating the trip bar to a tripped position when the button is pushed and for rotating a cam into tripped and untripped positions when the button is rotated.

摘要翻译： 一种断路器，其特征在于一对可分离触点，跳闸装置响应于过载电流条件自动操作以打开触头，该装置包括偏置在未脱扣位置的可旋转跳闸杆，以及互锁装置，包括用于旋转跳闸的手动操作按钮 当按钮被按下时，将其移动到跳闸位置，并且当按钮旋转时将凸轮旋转到跳闸和未脱扣位置。

公开(公告)号：US4279007A

公开(公告)日：1981-07-14

申请号：US57054

申请日：1979-07-12

申请人： Alan B. Shimp

发明人： Alan B. Shimp

IPC分类号： H02H3/10 ,  H02H3/093 ,  H02H3/13 ,  H02H3/34 ,  H02H3/16

CPC分类号： H02H3/093 ,  H02H3/34

摘要： An electronic control system and associated circuit breaker is taught in which the effect of in-rush current on mining equipment, for example, in regard to tripping is minimized even though a single phase fault of an equal magnitude is adequately provided for. This is done even though the same circuit breaker system and circuit breaker for both situations is utilized. A resistive capacitive series network is utilized to separate the ripple frequency from the DC value of the overload current being sensed. If the ripple component is relatively high for a given amount of overload current in the lines to be protected, then that is indicative of a single-phase fault for which circuit breaker tripping should be provided. If on the other hand the same amount of current causes a ripple component of a relatively low value, that is indicative of balanced three-phased overload which is usually indicative of in-rush or spurious transients. In any case, higher values of overload will cause other portions of the circuit to trip for safety. A time delay is provided at the output of an operational amplifier interconnected with the series resistive capacitive circuit. The time delay provides further protection against spurious tripping. Furthermore, tuned feedback is provided for the operational amplifier to distinguish between the ripple frequency of a single-phase fault and the ripple frequency of a three-phase fault.

摘要翻译： 教导了一种电子控制系统和相关联的断路器，其中即使适当地提供相等幅度的单相故障，使得采矿设备中的冲击电流对于跳闸的影响最小化。 即使使用相同的断路器系统和两种情况下的断路器也可以完成。 电阻式电容串联网络用于将纹波频率与正在感测的过载电流的直流值进行分离。 如果要保护的线路中的给定量的过载电流的纹波分量相对较高，则表示应提供断路器跳闸的单相故障。 另一方面，如果相同的电流量导致相对低的值的波动分量，这表示平衡的三相过载，其通常表示涌入或杂散瞬变。 在任何情况下，为安全起见，较高的过载值将导致电路的其他部分跳闸。 在与串联电阻电容电路互连的运算放大器的输出处提供时间延迟。 时间延迟提供进一步的保护，防止虚假跳闸。 此外，为运算放大器提供调谐反馈，以区分单相故障的纹波频率和三相故障的纹波频率。

公开(公告)号：US3959695A

公开(公告)日：1976-05-25

申请号：US572693

申请日：1975-04-29

申请人： Alan B. Shimp

发明人： Alan B. Shimp

IPC分类号： H01H3/16 ,  H01H9/54 ,  H02H1/06 ,  H02H3/10 ,  H02H3/347 ,  H02H3/08

CPC分类号： H02H3/105 ,  H02H1/063

摘要： A circuit interrupter having an associated control system which senses overload current or ground fault current and causes an appropriate tripping of the circuit interrupter. Tripping energy for causing the circuit interrupter to open under a normal fault condition is derived from the fault current itself. In addition, tripping energy for causing the circuit interrupter to open due to a ground fault condition is derived from the ground fault current.

摘要翻译： 具有相关联的控制系统的电路断续器，其感测过载电流或接地故障电流并导致电路断续​​器的适当跳闸。 在正常故障条件下使电路断路器断开的跳闸能量来自故障电流本身。 另外，由于接地故障条件导致电路断路器打开的跳闸能量是从接地故障电流导出的。

公开(公告)号：US5105326A

公开(公告)日：1992-04-14

申请号：US708328

申请日：1991-05-31

申请人： Alan B. Shimp ,  James I. Wise

发明人： Alan B. Shimp ,  James I. Wise

IPC分类号： H01H71/32 ,  H02H1/04

CPC分类号： H02H1/04 ,  H01H71/32

摘要： A circuit for controlling the orientation of magnetic fields is provided. The circuit has particular application to a flux shunt trip device in a circuit breaker. The flux shunt trip device has a spring-loaded plunger which when released to its extended position causes the circuit breaker to trip. Under normal operating conditions, the plunger is maintained in a retracted position by the force of a permanent magnet. A trip coil is mounted adjacent to the plunger. When the trip coil is energized a magnetic flux is generated opposing the magnetic flux of the permanent magnet. When the opposing flux neutralizes the flux of the permanent magnet the spring-loaded plunger is released to its trip position. A control circuit is provided to aid in maintaining the plunger in its retracted position under high current conditions close to, but below, the trip value. This control circuit acts to reverse the direction of current through the trip coil under these conditions such that a magnetic flux aiding that of the permanent magnet is generated. If a trip current is detected, the control circuit allows the current to flow in the normal direction through the trip coil, thus generating a magnetic flux opposing the permanent magnet which causes the plunger to be released and the breaker to trip.

摘要翻译： 提供了一种用于控制磁场取向的电路。 该电路特别适用于断路器中的分流脱扣装置。 通量分流脱扣装置具有弹簧加载柱塞，当释放到其延伸位置时，断路器跳闸。 在正常操作条件下，柱塞通过永磁体的力保持在缩回位置。 跳闸线圈安装在柱塞附近。 当跳闸线圈通电时，产生与永磁体的磁通相反的磁通。 当相对的助焊剂中和永磁体的通量时，弹簧加载的柱塞被释放到其跳闸位置。 提供控制电路以帮助在接近但低于跳闸值的高电流条件下将柱塞保持在其缩回位置。 该控制电路用于在这些条件下反向通过跳闸线圈的电流方向，从而产生辅助永久磁铁的磁通量。 如果检测到跳闸电流，则控制电路允许电流沿着正常方向通过跳闸线圈流动，从而产生与永磁体相反的磁通量，这导致柱塞被释放并且断路器跳闸。

公开(公告)号：US4939491A

公开(公告)日：1990-07-03

申请号：US428430

申请日：1989-10-26

申请人： Gregg J. Nissly ,  Alan B. Shimp ,  Lance Gula

发明人： Gregg J. Nissly ,  Alan B. Shimp ,  Lance Gula

IPC分类号： H01H9/04 ,  H01H71/12 ,  H05K1/02

CPC分类号： H01H71/125 ,  H01H9/047 ,  H05K1/0201

摘要： A multipurpose combination barrier and auxiliary current transformer board is provided for a circuit breaker. The board is located at the rear of the circuit breaker housing to close an open portion of the housing and act as a barrier to prevent contact with internal circuit breaker components. Vent holes, provided in the bottom portion of the board, allow heat generated within the circuit breaker to be exhausted to the atmosphere. The top portion of the board serves as a mounting plate for the auxiliary current transformers. The top portion of the board is formed from a printed circuit board having an electric circuit disposed thereon for the connections between the main current transformers, auxiliary transformers and the electronic trip unit. Connectors are provided on the printed circuit board adjacent each auxiliary current transformer to connect the main current transformers to the printed circuit. Another connector is provided on the board to connect the printed circuit board to the electronic trip unit. Thus, time consuming wiring connections are greatly reduced.

摘要翻译： 为断路器提供多用途组合屏障和辅助电流互感器板。 电路板位于断路器外壳的后部，以封闭外壳的开口部分，并作为屏障，以防止与内部断路器部件接触​​。 设置在电路板底部的排气孔允许在断路器内产生的热量排放到大气中。 板的顶部用作辅助电流互感器的安装板。 板的顶部由其上设置有用于主电流互感器，辅助变压器和电子跳闸单元之间的连接的电路的印刷电路板形成。 在每个辅助电流互感器附近的印刷电路板上提供连接器，以将主电流互感器连接到印刷电路。 板上提供另一个连接器，用于将印刷电路板连接到电子跳闸单元。 因此，大大减少了耗时的接线连接。

公开(公告)号：US4634981A

公开(公告)日：1987-01-06

申请号：US662646

申请日：1984-10-19

申请人： Alan B. Shimp ,  Derek A. Paice

发明人： Alan B. Shimp ,  Derek A. Paice

IPC分类号： H02H3/04 ,  G01R31/32

CPC分类号： H02H3/044

摘要： A method for and an apparatus for use in testing a circuit breaker, the circuit breaker having at least one current sensing means, such as a current transformer, trip circuitry, and circuit interruption means. In the method, a low voltage A.C. source is provided; and means for generating an A.C. signal is also provided, the means for generating an A.C. signal having the capability to vary the magnitude of the voltage of the A.C. signal. The low voltage A.C. source is connected with the means for generating an A.C. signal; and the means for generating an A.C. signal is connected with a current sensing means of the circuit breaker. The current sensing means is energized with an A.C. signal; and the magnitude of the current in the A.C. signal is monitored. The magnitude of the current in the A.C. signal and the state of the circuit interruption means in the circuit breaker is compared with a predetermined magnitude of A.C. at which the circuit interruption means in the circuit breaker in proper working condition would be placed in an open state to provide an indication of the condition of the circuit breaker. An apparatus is provided for use in testing a circuit breaker adapted for connection with a low voltage A.C. source and with a current sensing means, such as a current transformer, included in the circuit breaker. The apparatus includes means for varying the magnitude of the voltage of the low voltage A.C. source, and means for varying the magnitude adapted for connection with the low voltage A.C. source.

摘要翻译： 一种用于测试断路器的方法和装置，所述断路器具有至少一个电流感测装置，例如电流互感器，跳闸电路和电路中断装置。 在该方法中，提供低电压交流电源; 并且还提供了用于产生交流信号的装置，用于产生具有改变交流信号的电压的大小的能力的交流信号的装置。 低电压交流电源与用于产生交流信号的装置连接; 并且用于产生交流信号的装置与断路器的电流感测装置连接。 电流感测装置用交流信号通电; 并且监视交流信号中的电流的大小。 将交流信号中的电流的大小和断路器中的电路中断装置的状态与预定大小的AC进行比较，其中断路器中的电路中断装置处于正常工作状态将处于打开状态 以提供断路器的状况的指示。 提供了一种用于测试适于与低电压交流电源连接的断路器以及包括在断路器中的诸如电流互感器的电流感测装置的装置。 该装置包括用于改变低电压交流电源的电压的大小的装置，以及用于改变适于与低电压交流电源连接的量值的装置。

公开(公告)号：US4358810A

公开(公告)日：1982-11-09

申请号：US226951

申请日：1981-01-21

申请人： John A. Wafer ,  William E. Beatty, Jr. ,  Alan B. Shimp

发明人： John A. Wafer ,  William E. Beatty, Jr. ,  Alan B. Shimp

IPC分类号： G08B23/00 ,  H02H3/04 ,  H02H3/08

CPC分类号： G08B23/00 ,  H02H3/04

摘要： A circuit breaker and alarm device for a circuit having a series connected interruptible current device whereupon a circuit breaker tripping means, attached to said circuit breaker, is adapted to obtain an output voltage of one polarity upon the tripping of the circuit breaker. A circuit breaker resetting device, attached to said circuit breaker, is adapted to obtain an output voltage of reverse polarity upon the resetting of the circuit breaker. A voltage-detecting circuit for sensing the voltage produced by the tripping or resetting of the circuit breaker. A current detecting circuit which produces an output upon detecting an output produced by the voltage-detecting circuit. An alarm circuit which is connected to the current-detecting circuit is thereby caused to essentially instantaneously upon the tripping of the circuit breaker, to energize and remain energized until the resetting of the circuit breaker.

摘要翻译： 一种用于具有串联连接的可中断电流装置的电路的断路器和报警装置，其中附接到所述断路器的断路器跳闸装置适于在断路器跳闸时获得一个极性的输出电压。 连接到所述断路器的断路器复位装置适于在断路器复位时获得反极性的输出电压。 用于感测由断路器的跳闸或复位产生的电压的电压检测电路。 电流检测电路，其在检测由电压检测电路产生的输出时产生输出。 因此，当断路器跳闸时，连接到电流检测电路的报警电路基本上瞬时地被激励并保持通电直到断路器的复位。

公开(公告)号：US4298852A

公开(公告)日：1981-11-03

申请号：US68771

申请日：1979-08-21

申请人： Alfred E. Maier ,  Alan B. Shimp ,  David J. Uram

发明人： Alfred E. Maier ,  Alan B. Shimp ,  David J. Uram

IPC分类号： H01H73/02 ,  H01H71/74 ,  H01H73/38 ,  H01H9/24 ,  H01H33/48 ,  H02H3/08

CPC分类号： H01H71/7409 ,  H01H2069/016 ,  H01H2071/006 ,  H01H2300/042

摘要： A circuit breaker comprises an adjustable trip unit having electronic circuitry for initiating a tripping command upon detection of overcurrent conditions. The trip unit includes an externally accessible interchangeable plug-in rating adjuster removably supported on the housing of the circuit breaker by a threaded rod and tube. An interlock mechanism cooperates with the trip bar of the circuit breaker and secured mechanism to insure that only when a compatible rating adjuster is properly seated in the housing and the threaded rod is completely engaged within the threaded tube will the circuit breaker mechanism be removed from the trip-free condition. Coordination of a proper rating adjuster with a corresponding trip unit and circuit breaker is achieved by coordinating the lengths of the rod and tube and the position of the threaded portions thereof such that only a rating adjuster which is electrically compatible with a particular circuit breaker and trip unit will properly engage the threads of the tube to remove the circuit breaker from the trip-free condition.

摘要翻译： 断路器包括可调跳闸单元，其具有用于在检测到过电流状况时启动跳闸指令的电子电路。 跳闸单元包括外部可访问的可插拔额定值调节器，其通过螺纹杆和管可拆卸地支撑在断路器的壳体上。 互锁机构与断路器的跳闸杆和固定机构配合，以确保只有当兼容的额定值调节器正确地安装在壳体中并且螺纹杆完全接合在螺纹管内时，断路器机构将从 无条件的条件。 通过协调杆和管的长度及其螺纹部分的位置来实现具有相应脱扣单元和断路器的适当额定值调节器的协调，使得仅具有与特定断路器和跳闸电气兼容的额定值调节器 单元将适当地接合管的螺纹，以将断路器从无跳闸状态移除。

公开(公告)号：US3946279A

公开(公告)日：1976-03-23

申请号：US531404

申请日：1974-12-10

申请人： Derek A. Paice ,  Alan B. Shimp

发明人： Derek A. Paice ,  Alan B. Shimp

IPC分类号： H02H3/17 ,  H02H3/16

CPC分类号： H02H3/17

摘要： An active impedance multiplier circuit that can, as one of its uses, be used in a mine ground fault detection system. The purpose of the multiplier is to create a very high impedance for an AC signal that normally flows through a low impedance legitimate load. To accomplish this, the output of the multiplier is put in parallel with the low impedance load and impresses upon the load an appropriate voltage and current. When used in a fault detecting system, the impedance multiplier will act to normally prevent current from flowing in the low impedance load. AC current will flow to the legitimate load from the multiplier in response to signals obtained from an alternating current detector located within each multiplier. In its most basic form, the active impedance multiplier can be said to consist of a current detector and a current amplifier to amplify the detected current by a constant factor. The amplified output from the multiplier is in turn connected in parallel across the legitimate load.

摘要翻译： 作为其使用之一，可以在矿用接地故障检测系统中使用有源阻抗乘法器电路。 乘法器的目的是为通常流经低阻抗合法负载的交流信号产生非常高的阻抗。 为了实现这一点，乘法器的输出与低阻抗负载并联，并在负载上施加适当的电压和电流。 当用于故障检测系统时，阻抗倍增器将起到正常的作用，防止电流在低阻抗负载中流动。 响应于从位于每个乘法器内的交流电流检测器获得的信号，交流电流将从乘法器流向合法负载。 在其最基本的形式中，有源阻抗乘法器可以被称为由电流检测器和电流放大器组成，以通过恒定因子放大检测到的电流。 乘法器的放大输出又反过来并入跨合法负载。

公开(公告)号：US5559719A

公开(公告)日：1996-09-24

申请号：US249829

申请日：1994-05-26

申请人： Richard A. Johnson ,  Joseph C. Engel ,  Gary F. Saletta ,  Alan B. Shimp

发明人： Richard A. Johnson ,  Joseph C. Engel ,  Gary F. Saletta ,  Alan B. Shimp

IPC分类号： H02H3/08 ,  G01R23/10 ,  H01H33/59 ,  H02H3/00 ,  H02H3/02 ,  H02H3/26 ,  G01R19/00 ,  H02J3/00

CPC分类号： H02H3/006 ,  G01R23/10

摘要： A circuit interrupter with a digital trip unit automatically sets the sampling interval appropriate for the 50 Hz or 60 Hz distribution system to which the interrupter is connected. In order to avoid falsely shifting the interval in response to distorted currents, the trip unit only changes the interval if the number of zero crossings of the current within a fixed number of samples is within two zero crossings of the number of zero crossings for an undistorted current of the other frequency for two consecutive time periods in which the fixed number of samples are taken. Furthermore, changes in the interval are only written into an EEPROM for use on power-up a fixed number of times to preclude disabling the EEPROM. In one embodiment, a 2 pole filter is utilized in the zero crossing counting circuit to eliminate false counts from noise originating in a chopper used in the trip unit power supply. In another embodiment, the zero crossing counting circuit is disabled unless external dc power is available for the trip unit which idles the chopper.

摘要翻译： 具有数字跳闸单元的电路断路器自动设置适用于与断路器连接的50Hz或60Hz分配系统的采样间隔。 为了避免响应于失真电流而错误地移动间隔，如果在固定数量的采样内的电流的零交叉的数量在未失真的零交叉数的两个零交叉之内，则跳闸单元仅改变间隔 采用固定数量样本的两个连续时间段的另一个频率的电流。 此外，间隔的变化只写入一个EEPROM，用于上电固定次数以排除禁用EEPROM。 在一个实施例中，在过零计数电路中使用2极滤波器以消除来自在跳闸单元电源中使用的斩波器的噪声的错误计数。 在另一个实施例中，过零计数电路被禁用，除非外部直流电可用于空转斩波器的跳闸单元。