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    • 1. 发明授权
    • Digital Protection control system and digital protection control apparatus
    • 数字保护控制系统和数字保护控制装置
    • US09118173B2
    • 2015-08-25
    • US13576843
    • 2010-02-03
    • Chikashi KomatsuMitsuyasu KidoShoji YoshidaKazuhisa Takami
    • Chikashi KomatsuMitsuyasu KidoShoji YoshidaKazuhisa Takami
    • H02H3/00H02H7/00H02H7/26H02H1/00
    • H02H1/0061H02H1/0084H02H7/261
    • Disclosed are a digital protection control system and a digital protection control apparatus, wherein the digital protection control apparatus can easily be made to have more terminals, even when the number of terminals of a power transmission line increases. The digital protection control system has, as terminal stations thereof, a reference station that is to become the reference point for the sampling time at which power grid current information is to be taken in, tail-end stations that take in power grid current information from the power grid system, and intermediate stations that are connected between the reference station and the tail-end stations via transmission paths. The intermediate station is provided with an uplink transmission unit that is connected to a transmission path at the reference station side thereof, and a plurality of downlink transmission units that are connected to transmission paths at the tail-end station side thereof. The intermediate station also has the time thereof to be subordinate to the time of the terminal station connected to the uplink transmission unit thereof, and the time of the terminal stations connected to the downlink transmission units thereof are made to be subordinate to the intermediate station, with the time thereof used as reference time.
    • 公开了一种数字保护控制系统和数字保护控制装置,其中即使当输电线路的端子数量增加时,也可以容易地使数字保护控制装置具有更多的端子。 数字保护控制系统作为其终端站具有要成为要采集电网电流信息的采样时间的参考点的参考站,从电网电流信息中获取电力网电流信息的尾端站 电网系统和通过传输路径连接在参考站和尾端站之间的中间站。 中间站设置有连接到其参考站侧的传输路径的上行链路传输单元,以及在其尾端站侧连接到传输路径的多个下行链路传输单元。 中间站也具有从属于连接到其上行链路传输单元的终端的时间,并且连接到其下行链路传输单元的终端的时间被制成从属于中间站的时间, 其时间用作参考时间。
    • 2. 发明申请
    • Digital Protection Control System and Digital Protection Control Apparatus
    • 数字保护控制系统和数字保护控制装置
    • US20140146430A1
    • 2014-05-29
    • US13576843
    • 2010-02-03
    • Chikashi KomatsuMitsuyasu KidoShoji YoshidaKazuhisa Takami
    • Chikashi KomatsuMitsuyasu KidoShoji YoshidaKazuhisa Takami
    • H02H1/00
    • H02H1/0061H02H1/0084H02H7/261
    • Disclosed are a digital protection control system and a digital protection control apparatus, wherein the digital protection control apparatus can easily be made to have more terminals, even when the number of terminals of a power transmission line increases. The digital protection control system has, as terminal stations thereof, a reference station that is to become the reference point for the sampling time at which power grid current information is to be taken in, tail-end stations that take in power grid current information from the power grid system, and intermediate stations that are connected between the reference station and the tail-end stations via transmission paths. The intermediate station is provided with an uplink transmission unit that is connected to a transmission path at the reference station side thereof, and a plurality of downlink transmission units that are connected to transmission paths at the tail-end station side thereof. The intermediate station also has the time thereof to be subordinate to the time of the terminal station connected to the uplink transmission unit thereof, and the time of the terminal stations connected to the downlink transmission units thereof are made to be subordinate to the intermediate station, with the time thereof used as reference time.
    • 公开了一种数字保护控制系统和数字保护控制装置,其中即使当输电线路的端子数量增加时,也可以容易地使数字保护控制装置具有更多的端子。 数字保护控制系统作为其终端站具有要成为要采集电网电流信息的采样时间的参考点的参考站,从电网电流信息中获取电力电流信息的尾端站 电网系统和通过传输路径连接在参考站和尾端站之间的中间站。 中间站设置有连接到其参考站侧的传输路径的上行链路传输单元,以及在其尾端站侧连接到传输路径的多个下行链路传输单元。 中间站也具有从属于连接到其上行链路传输单元的终端的时间,并且连接到其下行链路传输单元的终端的时间被制成从属于中间站的时间, 其时间用作参考时间。
    • 3. 发明授权
    • Vacuum valve
    • 真空阀
    • US08497445B2
    • 2013-07-30
    • US11516787
    • 2006-09-07
    • Shoji YoshidaNobuyuki OdakaMasayuki Furusawa
    • Shoji YoshidaNobuyuki OdakaMasayuki Furusawa
    • H01H33/66
    • H01H33/66207H01H2033/66215
    • A vacuum valve includes a hermetically sealed vessel having an insulative cylinder, an end plate at a movable electrode end, and an end plate at a fixed electrode end. The vessel accommodates a movable contact and an opposed fixed contact. The movable contact is supported through a bellows allowing the contacts to open and close while maintaining an air-tight (hermetic) seal. The bellows used in at least one embodiment is a seam type bellows without metal plating. Nickel plating layers are formed on the end plate at movable contact end and on a cover, which are joined to the bellows. The ends of the bellows are soldered with the end plate and the cover using a silver solder at the solder joints.
    • 真空阀包括具有绝缘筒,可动电极端的端板和固定电极端的端板的气密密封容器。 容器容纳可动触点和相对的固定触点。 活动触点通过波纹管支撑,允许触点打开和关闭,同时保持气密(密封)密封。 在至少一个实施例中使用的波纹管是没有金属电镀的接缝型波纹管。 镀镍层形成在端板上的活动接触端部和覆盖件上,盖子连接到波纹管。 波纹管的端部在焊接点处使用银焊料与端板和盖焊接。
    • 6. 发明授权
    • Optical amplifying device
    • 光放大装置
    • US07340165B2
    • 2008-03-04
    • US11498827
    • 2006-08-04
    • Shoji YoshidaTooru Matsumoto
    • Shoji YoshidaTooru Matsumoto
    • H04B10/08
    • H04B10/0777H01S3/0014H01S3/06758H01S3/10015H01S2301/02H04B10/0775
    • An optical amplifying device disposed on a transmission path of a WDM signal includes an optical amplifier amplifying the WDM signal, a detecting unit detecting a change in a transmission wavelength count contained in the WDM signal and/or a change in light receiving level of the optical amplifier, a measuring unit measuring an optical signal to noise (SN) ratio of the WDM signal outputted from the optical amplifier, an update unit updating a reference value for evaluating the measurement value of the optical SN ratio obtained by the measuring unit when the detecting unit detects the change, a judging unit judging whether or not the measurement value deviates from an allowable range based on a reference value, and an output unit outputting an error of the optical amplifier if the measurement value deviates from the allowable range.
    • 设置在WDM信号的传输路径上的光放大装置包括放大WDM信号的光放大器,检测包含在WDM信号中的传输波长数的变化的检测单元和/或光信号的光接收电平变化 放大器,测量从光放大器输出的WDM信号的光信噪比(SN)比的测量单元,更新单元,当更新单元更新用于评估由测量单元获得的光学SN比的测量值的参考值 单元检测到变化,判断单元基于参考值判断测量值是否偏离允许范围;以及输出单元,如果测量值偏离允许范围则输出光学放大器的误差。
    • 9. 发明授权
    • Optical transmission system
    • 光传输系统
    • US07113700B2
    • 2006-09-26
    • US10372080
    • 2003-02-25
    • Yoshihiro ShimizuMakoto TakakuwaShoji YoshidaTooru MatsumotoAkio Morimoto
    • Yoshihiro ShimizuMakoto TakakuwaShoji YoshidaTooru MatsumotoAkio Morimoto
    • H04B10/08H04B15/00H04B10/22
    • H04J14/0221H04J14/0201H04J14/0212H04J14/0213
    • An optical transmission system includes an optical wavelength branching unit that shifts a wavelength transmission band in the short-wavelength or long-wavelength directions based on a branching filter operation temperature, and performs a branching operation on a wavelength-multiplexed signal. A reception transponder performs decoding on an error correction code. An error correction monitoring unit gathers an error correction amount upon which a branching filter temperature control unit sets the branching filter operation temperature. A transmission transponder performs encoding on an error correction code. An optical wavelength combining unit shifts the wavelength transmission band in the opposite direction from the shifting direction based on a combining filter operation temperature, to perform a combining operation on optical signals and output a wavelength-multiplexed optical signal. A combining filter temperature control unit sets the combining filter operation temperature based on the error correction amount sent from the optical reception device.
    • 光传输系统包括基于分支滤波器操作温度移动短波长或长波长方向上的波长透射带的光波长分支单元,并对波分复用信号进行分支操作。 接收转发器对纠错码进行解码。 误差校正监视单元收集分支滤波器温度控制单元设定分支滤波器操作温度的纠错量。 传输转发器对纠错码执行编码。 光波长组合单元基于组合滤波器操作温度将波长传输频带沿与移位方向相反的方向移动,以对光信号执行组合操作并输出波长复用的光信号。 组合滤波器温度控制单元基于从光接收装置发送的纠错量来设置组合滤波器操作温度。