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63 条记录 (耗时 0.052 秒)

    Arrangement for gas circuit breaker with reactor and capacitor connected in series and method for setting its circuit parameter
    1.
    发明授权
    Arrangement for gas circuit breaker with reactor and capacitor connected in series and method for setting its circuit parameter 失效
    串联电抗器和电容器的气体断路器的布置及其电路参数的设定方法

    公开(公告)号：US5668691A

    公开(公告)日：1997-09-16

    申请号：US634232

    申请日：1996-04-18

    申请人： Hiroki Ito ,  Takashi Moriyama ,  Kenji Kamei ,  Suenobu Hamano ,  Etsuo Nitta ,  Naoaki Takeji ,  Koji Yamaji ,  Masayuki Hatano

    发明人： Hiroki Ito ,  Takashi Moriyama ,  Kenji Kamei ,  Suenobu Hamano ,  Etsuo Nitta ,  Naoaki Takeji ,  Koji Yamaji ,  Masayuki Hatano

    IPC分类号： H01H33/59 ,  H02H3/00 ,  H01H9/30

    CPC分类号： H01H33/596

    摘要： A small-sized arrangement for a DC circuit breaker with a reactor and a capacitor connected in series is provided which includes a DC circuit breaker, a parallel impedance means with a suitably determined inductance and a suitable capacitance less in value than the inductance, and an energy-absorbing element. The parallel impedance means has a parallel reactor of a carefully selected inductance and a parallel capacitor of a smaller capacitance value. Determining the inductance and capacitance values of the parallel reactors and parallel capacitors employed in the parallel impedance means to satisfy a certain condition defined by specific formulas can cause the DC circuit breaker to take full advantage of the inherent performance thereof while allowing the interruption time to remain minimized, thereby achieving enhanced interruption performance. Since the capacitance of the parallel capacitor is rendered relatively smaller, the device can be small in size and low in cost.

    摘要翻译： 提供一种用于具有串联连接的电抗器和电容器的DC断路器的小尺寸布置，其包括DC断路器，具有适当确定的电感的并联阻抗装置和具有比电感值小的适当电容，并且 能量吸收元件。 并联阻抗装置具有仔细选择的电感的并联电抗器和较小电容值的并联电容器。 确定并联电抗器和并联电容器中使用的并联电抗器和并联电容器的电感和电容值意味着满足特定公式定义的特定条件可以使直流断路器充分利用其固有性能，同时允许中断时间保持 最小化，从而实现增强的中断性能。 由于并联电容器的电容相对较小，因此该器件的体积小，成本低。

    Circuit breaking device
    2.
    发明授权
    Circuit breaking device 失效
    断路装置

    公开(公告)号：US5737162A

    公开(公告)日：1998-04-07

    申请号：US693351

    申请日：1996-08-06

    申请人： Hiroki Ito ,  Takashi Moriyama ,  Kenji Kamei ,  Suenobu Hamano ,  Etsuo Nitta ,  Kazuhiko Arai ,  Naoaki Takeji ,  Koji Takahata ,  Masayuki Hatano

    发明人： Hiroki Ito ,  Takashi Moriyama ,  Kenji Kamei ,  Suenobu Hamano ,  Etsuo Nitta ,  Kazuhiko Arai ,  Naoaki Takeji ,  Koji Takahata ,  Masayuki Hatano

    IPC分类号： H01H33/14 ,  H01H33/59 ,  H02H3/00

    CPC分类号： H01H33/596 ,  H01H33/143

    摘要： An objective of this invention is to provide a DC circuit breaking device having functions for transmitting direct currents to an electric power system and interrupting direct currents to the electric power system under abnormal conditions such as grounding and short-circuits, where the DC circuit breaking device can minimize the capacity of a condenser for the commuting circuit while rapidly changing the arc voltage to cause arc currents to be quickly extended and vibrated in order to interrupt direct currents in a short arc time. This DC circuit breaking device includes a main DC circuit breaker for interrupting the transmission of direct currents to an electric power system and a DC circuit breaker that is connected in series to the main DC circuit breaker and which is smaller than the main DC circuit breaker. The circuit breaking device also includes a commutation circuit that is connected in parallel to the DC circuit breaker and the small DC circuit breaker which are connected together in series and which is constituted by a reactor and a condenser. The circuit breaking device also includes a surge absorber for absorbing a surged voltage applied to for the condenser.

    摘要翻译： 本发明的目的是提供一种直流断路装置，其具有在直流断路装置等异常条件下向电力系统发送直流电流和中断到电力系统的直流的功能。 可以最小化通勤电路的电容器的容量，同时快速改变电弧电压，使电弧电流迅速延伸和振动，以便在短时间内中断直流电流。 该DC断路装置包括用于中断与电力系统的直流的传输的主DC断路器和与主DC断路器串联连接并且小于主DC断路器的DC断路器。 断路装置还包括与DC断路器和小型DC断路器并联连接的换向电路，它们串联连接在一起并且由反应器和冷凝器构成。 断路装置还包括用于吸收施加到冷凝器的浪涌电压的浪涌吸收器。

    Inrush current suppressing device
    4.
    发明授权
    Inrush current suppressing device 有权
    浪涌电流抑制装置

    公开(公告)号：US09170597B2

    公开(公告)日：2015-10-27

    申请号：US13877756

    申请日：2010-12-17

    申请人： Kenji Kamei ,  Sho Tokoyoda ,  Tomohito Mori ,  Hiroki Ito ,  Sadayuki Kinoshita

    发明人： Kenji Kamei ,  Sho Tokoyoda ,  Tomohito Mori ,  Hiroki Ito ,  Sadayuki Kinoshita

    IPC分类号： H02H9/02 ,  G05F5/00 ,  H01H33/59 ,  H02H9/00

    CPC分类号： G05F5/00 ,  H01H33/59 ,  H02H7/04 ,  H02H9/002 ,  H02H9/02

    摘要： An inrush current suppressing device includes a residual-magnetic-flux calculating unit configured to retain an interruption characteristic of a breaker and an attenuation characteristic of a magnetic flux that are estimated by measurement, analysis, or the like beforehand, and apply the attenuation characteristic to a magnetic flux value at the time of current interruption obtained based on the interruption characteristic of the breaker to calculate a residual magnetic flux value. The breaker is turned on in a power supply voltage phase in which the calculated residual magnetic flux value and a theoretical value of a steady magnetic flux match.

    摘要翻译： 浪涌电流抑制装置包括残留磁通计算单元，其被配置为保持断路器的中断特性和通过测量，分析等预测的磁通的衰减特性，并将衰减特性应用于 基于断路器的中断特性获得的电流中断时的磁通量值，以计算剩余磁通量值。 断路器在计算的剩余磁通值和稳定磁通的理论值匹配的电源电压相位中接通。

    Phase-control switchgear and phase-control method for switchgear
    7.
    发明授权
    Phase-control switchgear and phase-control method for switchgear 有权
    开关柜的相位控制开关柜和相位控制方法

    公开(公告)号：US08526155B2

    公开(公告)日：2013-09-03

    申请号：US13129690

    申请日：2008-12-25

    申请人： Sadayuki Kinoshita ,  Kenji Kamei ,  Tomohito Mori ,  Hiroki Ito

    发明人： Sadayuki Kinoshita ,  Kenji Kamei ,  Tomohito Mori ,  Hiroki Ito

    IPC分类号： H01H73/00 ,  H02H7/00 ,  H02H3/00 ,  G05D17/00

    CPC分类号： H01H9/563

    摘要： A phase-control switchgear includes a circuit breaker, a phase difference detection unit, a storage unit, and a circuit breaker control unit. The phase difference detection unit detects a phase difference between voltages of a specific phase (U-phase) of buses to which three-phase generators are respectively connected, at a plurality of time points. The storage unit stores the detected phase differences. When the three-phase generators are out of synchronization, the circuit breaker control unit estimates a breaking time point at which the phase difference between the voltages of the U-phase of the buses will be in the range of not less than −80° and not more than 80°, based on the phase differences at the plurality of time points stored in the storage unit. The circuit breaker control unit opens the circuit breaker to break a current at the estimated breaking time point. This makes it possible to suppress a transient voltage generated between electrodes of the circuit breaker after the current is broken.

    摘要翻译： 相位控制开关装置包括断路器，相位差检测单元，存储单元和断路器控制单元。 相位差检测单元在多个时间点检测分别连接有三相发电机的母线的特定相位（U相）的电压之间的相位差。 存储单元存储检测到的相位差。 当三相发电机不同步时，断路器控制单元估计总线的U相电压之间的相位差在-80°以上的断开时间点，以及 基于存储在存储单元中的多个时间点的相位差，不大于80°。 断路器控制单元打开断路器以在估计的断开时间点断开电流。 这使得可以在电流断开之后抑制断路器的电极之间产生的瞬态电压。

    PHASE-CONTROL SWITCHGEAR AND METHOD OF CONTROLLING SWITCHGEAR
    8.
    发明申请
    PHASE-CONTROL SWITCHGEAR AND METHOD OF CONTROLLING SWITCHGEAR 有权
    相控开关和控制开关的方法

    公开(公告)号：US20110228437A1

    公开(公告)日：2011-09-22

    申请号：US13129690

    申请日：2008-12-25

    申请人： Sadayuki Kinoshita ,  Kenji Kamei ,  Tomohito Mori ,  Hiroki Ito

    发明人： Sadayuki Kinoshita ,  Kenji Kamei ,  Tomohito Mori ,  Hiroki Ito

    IPC分类号： H01H73/02

    CPC分类号： H01H9/563

    摘要： A phase-control switchgear includes a circuit breaker, a phase difference detection unit, a storage unit, and a circuit breaker control unit. The phase difference detection unit detects a phase difference between voltages of a specific phase (U-phase) of buses to which three-phase generators are respectively connected, at a plurality of time points. The storage unit stores the detected phase differences. When the three-phase generators are out of synchronization, the circuit breaker control unit estimates a breaking time point at which the phase difference between the voltages of the U-phase of the buses will be in the range of not less than −80° and not more than 80°, based on the phase differences at the plurality of time points stored in the storage unit. The circuit breaker control unit opens the circuit breaker to break a current at the estimated breaking time point. This makes it possible to suppress a transient voltage generated between electrodes of the circuit breaker after the current is broken.

    摘要翻译： 相位控制开关装置包括断路器，相位差检测单元，存储单元和断路器控制单元。 相位差检测单元在多个时间点检测分别连接有三相发电机的母线的特定相位（U相）的电压之间的相位差。 存储单元存储检测到的相位差。 当三相发电机不同步时，断路器控制单元估计总线的U相电压之间的相位差在-80°以上的断开时间点，以及 基于存储在存储单元中的多个时间点的相位差，不大于80°。 断路器控制单元打开断路器以在估计的断开时间点断开电流。 这使得可以在电流断开之后抑制断路器的电极之间产生的瞬态电压。

    Incoming current suppression device
    9.
    发明授权
    Incoming current suppression device 有权
    进电流抑制装置

    公开(公告)号：US07696648B2

    公开(公告)日：2010-04-13

    申请号：US12051498

    申请日：2008-03-19

    申请人： Sadayuki Kinoshita ,  Kenji Kamei ,  Tomohito Mori ,  Hiroki Ito

    发明人： Sadayuki Kinoshita ,  Kenji Kamei ,  Tomohito Mori ,  Hiroki Ito

    IPC分类号： H01H47/00 ,  H01H47/02

    CPC分类号： H02H9/002 ,  Y10T307/826

    摘要： A control unit of an electric power supply system causes, responsive to a closing command signal, a switch corresponding to R phase to be thrown at a timing when a stationary magnetic flux and a residual magnetic flux of R phase are coincident with each other and then subsequently causes other switches corresponding to S phase and T phase to be thrown at a timing which is delayed from a zero point of an alternating voltage of R phase by a predetermined phase angle of 0-30 degrees, such that the difference of the stationary magnetic flux and the residual magnetic flux of each of S phase and T phase is minimum. Therefore, an exciting incoming current which flows into a three-phase transformer at a time of throwing a three-phase breaker provided with interpole capacitors can be suppressed.

    摘要翻译： 电源系统的控制单元响应于闭合指令信号，在R相的固定磁通和残余磁通量相互一致的时刻引起对应于R相的开关，并且然后 随后使得对应于S相和T相的其它开关在从R相的交流电压的零点延迟了0-30度的预定相位角的定时处被抛出，使得固定磁 S相和T相各自的磁通量和残余磁通量最小。 因此，可以抑制在设置有极间电容器的三相断路器投入时流入三相变压器的励磁输入电流。

    INCOMING CURRENT SUPPRESSION DEVICE
    10.
    发明申请
    INCOMING CURRENT SUPPRESSION DEVICE 有权
    采用电流抑制装置

    公开(公告)号：US20090097173A1

    公开(公告)日：2009-04-16

    申请号：US12051498

    申请日：2008-03-19

    申请人： Sadayuki KINOSHITA ,  Kenji Kamei ,  Tomohito Mori ,  Hiroki Ito

    发明人： Sadayuki KINOSHITA ,  Kenji Kamei ,  Tomohito Mori ,  Hiroki Ito

    IPC分类号： H02H7/04 ,  H02H3/08 ,  H02H3/00

    CPC分类号： H02H9/002 ,  Y10T307/826

    摘要： A control unit of an electric power supply system causes, responsive to a closing command signal, a switch corresponding to R phase to be thrown at a timing when a stationary magnetic flux and a residual magnetic flux of R phase are coincident with each other and then subsequently causes other switches corresponding to S phase and T phase to be thrown at a timing which is delayed from a zero point of an alternating voltage of R phase by a predetermined phase angle of 0-30 degrees, such that the difference of the stationary magnetic flux and the residual magnetic flux of each of S phase and T phase is minimum. Therefore, an exciting incoming current which flows into a three-phase transformer at a time of throwing a three-phase breaker provided with interpole capacitors can be suppressed.

    摘要翻译： 电源系统的控制单元响应于闭合指令信号，在R相的固定磁通和残余磁通量相互一致的时刻引起对应于R相的开关，并且然后 随后使得对应于S相和T相的其它开关在从R相的交流电压的零点延迟了0-30度的预定相位角的定时处被抛出，使得固定磁 S相和T相各自的磁通量和残余磁通量最小。 因此，可以抑制在设置有极间电容器的三相断路器投入时流入三相变压器的励磁输入电流。