Circuit for controlling the orientation of a magnetic field
    1.
    发明授权
    Circuit for controlling the orientation of a magnetic field 失效
    用于控制磁场取向的电路

    公开(公告)号:US5105326A

    公开(公告)日:1992-04-14

    申请号:US708328

    申请日:1991-05-31

    CPC classification number: H02H1/04 H01H71/32

    Abstract: 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.

    Abstract translation: 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。

    Combination barrier and auxiliary CT board
    2.
    发明授权
    Combination barrier and auxiliary CT board 失效
    组合屏障和辅助CT板

    公开(公告)号:US4939491A

    公开(公告)日:1990-07-03

    申请号:US428430

    申请日:1989-10-26

    CPC classification number: H01H71/125 H01H9/047 H05K1/0201

    Abstract: 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.

    Abstract translation: 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。

    Method for testing a circuit breaker using a three terminal current
transformer
    3.
    发明授权
    Method for testing a circuit breaker using a three terminal current transformer 失效
    使用三端电流互感器测试断路器的方法

    公开(公告)号:US4634981A

    公开(公告)日:1987-01-06

    申请号:US662646

    申请日:1984-10-19

    CPC classification number: H02H3/044

    Abstract: 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.

    Abstract translation: 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。

    Circuit breaker with alarm
    4.
    发明授权
    Circuit breaker with alarm 失效
    断路器带报警

    公开(公告)号:US4358810A

    公开(公告)日:1982-11-09

    申请号:US226951

    申请日:1981-01-21

    CPC classification number: G08B23/00 H02H3/04

    Abstract: 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.

    Abstract translation: 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。

    Circuit breaker with interchangeable rating adjuster and interlock means
    5.
    发明授权
    Circuit breaker with interchangeable rating adjuster and interlock means 失效
    断路器具有可互换的额定值调节器和互锁装置

    公开(公告)号:US4298852A

    公开(公告)日:1981-11-03

    申请号:US68771

    申请日:1979-08-21

    Abstract: 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.

    Abstract translation: 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。

    Active impedance multiplier
    6.
    发明授权
    Active impedance multiplier 失效
    有源阻抗乘数

    公开(公告)号:US3946279A

    公开(公告)日:1976-03-23

    申请号:US531404

    申请日:1974-12-10

    CPC classification number: H02H3/17

    Abstract: 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.

    Abstract translation: 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。

    Electric circuit for operating trip circuit of a circuit breaker
    7.
    发明授权
    Electric circuit for operating trip circuit of a circuit breaker 失效
    断路器跳闸电路的电路

    公开(公告)号:US4870532A

    公开(公告)日:1989-09-26

    申请号:US236099

    申请日:1988-08-24

    Abstract: An organo-platinum complex of the formula ##STR1## wherein X and Y have the same meaning of a halogen, oxyanion or carboxylate, respectively or X is an oxyanion or dicarboxylate together with Y, and L.sub.1 and L.sub.2 are bonded together to form one of silicon containing diamine compounds selected from the group consisting of ##STR2## in which R.sub.1, R.sub.2 and R.sub.3 are a lower alkyl or phenyl, respectively, and n is an integer of 0 or 1,and use of the complex for an anti-tumor composition.

    Abstract translation: 用于断路器的可拆卸额定插头在断路器跳闸电路的感测端子之间提供与参考电阻器串联的艺术主动可变阻抗,以调整响应于受保护电路中接收到的输入电流的前置电流监视器产生的感测电压。 由输入电流激励的有源可变阻抗包括由运算放大器控制的高增益晶体管放大器,优选达林顿晶体管。 一个控制电路包括一对参考二极管,其与完全导通时的达林顿晶体管上的正向压降匹配,与参考电压选择电路串联,该参考电压选择电路将非参考电压施加参考电压。 运算放大器的反相输入。 达林顿晶体管和参考电阻之间的连接电压被反馈到运算放大器的反相输入端,使得放大器的增益,因此与参考电阻串联的可变阻抗随参考电压而变化。

    Circuit breaker with interface flux shunt trip
    8.
    发明授权
    Circuit breaker with interface flux shunt trip 失效
    具有接口分流脱扣器的断路器

    公开(公告)号:US4639701A

    公开(公告)日:1987-01-27

    申请号:US771377

    申请日:1985-08-30

    Applicant: Alan B. Shimp

    Inventor: Alan B. Shimp

    CPC classification number: H01H71/2463 H01H71/1009 H01H71/128 H01H71/7463

    Abstract: A circuit breaker characterized by a circuit breaker structure having separable contacts and a releasable mechanism which mechanism is retained in untripped position by a latch including a rotatable trip bar. A solenoid, that is operable automatically in response to overload current conditions, is located adjacent to the trip bar and has a plunger movable parallel to the axis of the trip bar. A lever is disposed between the plunger and the trip bar to translate longitudinal motion into rotational trip bar motion.

    Abstract translation: 一种断路器,其特征在于具有可分离触头的断路器结构和一个可释放机构,该机构通过包括可旋转跳闸杆的闩锁保持在未脱扣位置。 可响应于过载电流条件自动操作的螺线管位于与跳闸杆相邻的位置,并具有可平行于跳闸杆轴线移动的活塞。 杠杆设置在柱塞和跳闸杆之间,以将纵向运动转换成旋转跳闸杆运动。

    Undervoltage control apparatus for circuit interrupter
    9.
    发明授权
    Undervoltage control apparatus for circuit interrupter 失效
    电路断续器欠压控制装置

    公开(公告)号:US4205361A

    公开(公告)日:1980-05-27

    申请号:US888725

    申请日:1978-03-21

    Applicant: Alan B. Shimp

    Inventor: Alan B. Shimp

    CPC classification number: H02H3/24 H01H47/325

    Abstract: Apparatus for undervoltage control of a circuit breaker includes a holding coil, a switching transistor connected in series with the holding coil, and a rectifier providing pulsating DC voltage. A level detector responsive to the output voltage of the rectifier produces an actuating signal for the switching transistor when the rectifier output voltage rises above a predetermined value. A switching regulator is provided which is connected to the level detector and the switching transistor for modulating the actuating signal when the voltage to the rectifier input rises above a predetermined value. The switching transistor is thus rendered periodically non-conducting to regulate the average voltage appearing across the holding coil.

    Abstract translation: 断路器的欠电压控制装置包括保持线圈,与保持线圈串联连接的开关晶体管和提供脉动直流电压的整流器。 当整流器输出电压升高到高于预定值时,响应于整流器的输出电压的电平检测器产生用于开关晶体管的致动信号。 提供开关调节器,其连接到电平检测器和开关晶体管,用于当整流器输入的电压上升到高于预定值时调制致动信号。 因此,开关晶体管周期性地不导通,以调节跨过保持线圈出现的平均电压。

    Circuit interrupter circuit including improved control
    10.
    发明授权
    Circuit interrupter circuit including improved control 失效
    电路断路器电路包括改进的控制

    公开(公告)号:US3956670A

    公开(公告)日:1976-05-11

    申请号:US473111

    申请日:1974-05-24

    CPC classification number: H02H3/093

    Abstract: A relatively simple trip or control circuit for a circuit breaker in which the time constant for an input signal related to the amount of current flowing in the lines to be protected is purposely made relatively large so that tripping is slightly delayed for approximately three-half cycles of line current for overload currents in the range of 500 to 1000% of rated current. A Zener diode resistive network is used in combination therewith for providing near instantaneous tripping in the range of overload current above 1000%. The short delay is useful for preventing circuit breaker tripping when overloads of the spurious or transient type are impressed occasionally on the electrical conductors of the circuit being protected. The delay characteristic is not purposely related to any function of the overload current but is rather arbitrarily chosen to be greater than approximately 25 milliseconds because most spurious or transient signals have a duration of less time.

    Abstract translation: 用于断路器的相对简单的跳闸或控制电路,其中与要保护的线路中流动的电流量相关的输入信号的时间常数有意地相对较大,使得跳闸稍微延迟大约三个半周期 的过载电流在额定电流的500至1000%的范围内。 齐纳二极管电阻网络与其组合使用,用于在超过1000%的过载电流范围内提供近瞬时跳闸。 短暂的延迟对于防止在保护电路的电导体上偶尔施加杂散或瞬态类型的过载时防止断路器跳闸。 延迟特性并不是故意与过载电流的任何功能相关,而是相当任意地选择为大于25毫秒,因为大多数杂散或瞬态信号具有较短时间的持续时间。

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