公开(公告)号：US06525917B1

公开(公告)日：2003-02-25

申请号：US09371525

申请日：1999-08-10

申请人： Hiroshi Arita ,  Takahide Matsuo ,  Satoshi Watahiki ,  Shingo Shirakawa ,  Naoki Kasahara ,  Shinichi Kondo ,  Tokio Yamagiwa

发明人： Hiroshi Arita ,  Takahide Matsuo ,  Satoshi Watahiki ,  Shingo Shirakawa ,  Naoki Kasahara ,  Shinichi Kondo ,  Tokio Yamagiwa

IPC分类号： H02H300

CPC分类号： H02H9/06 ,  H02H3/205 ,  H02H3/22 ,  H02H9/043

摘要： This invention is to provide a transforming system capable of satisfactorily protecting the equipment of a substation even if a aerial electric power lines is struck directly by an intense electric shock of a large energy, such as an electric shock of a waveform similar to that of a thunderbolt stroke having a long duration of wave tail. So, this invention, a transforming system comprises, a lightning arrester, a ground fault device installed near a service entrance through which the power lines are led in, a voltammeter placed on the gas-insulated switchgear, and a control device receiving a signal from the voltammeter and providing a signal for controlling the grounding device. And when detecting of said thunderbolt arising in said aerial electric power line, a control device which order said ground fault device to make the ground fault condition.

摘要翻译： 本发明是提供一种能够令人满意地保护变电站的设备的转换系统，即使空中电力线被大量能量的强烈电击直接击中，例如与一个波形类似的波形的电击 具有长尾波浪尾的雷电冲程。 因此，本发明的转换系统包括：避雷器，安装在电源线被引导的服务入口附近的接地故障装置，放置在气体绝缘开关装置上的伏特计;以及控制装置， 电压表，并提供控制接地装置的信号。 并且当检测到在所述空中电力线路中产生的所述雷电时，指令所述接地故障装置进行接地故障状态的控制装置。

公开(公告)号：US06407900B1

公开(公告)日：2002-06-18

申请号：US09526459

申请日：2000-03-16

申请人： Shingo Shirakawa ,  Seizo Nakano ,  Kazuo Suzuki

发明人： Shingo Shirakawa ,  Seizo Nakano ,  Kazuo Suzuki

IPC分类号： H02H100

CPC分类号： H02G13/80 ,  F03D1/065 ,  F03D80/30 ,  F05B2240/30 ,  H02G13/00 ,  H02G13/40 ,  Y02E10/721

摘要： In a lightning protection system for a wind power generation installation, a conductor ring 16 is provided on a wind mill vane 1 and at a rotor casing 6 incorporating a wind power generator 3 a zinc oxide element 18 is provided so as to face the conductor ring 16 with a spark gap 17, thereby, if a lightning in winter season which causes to flow a large current for a long duration time hits the wind mill vane 1, the wind power generation installation is effectively protected.

摘要翻译： 在用于风力发电装置的防雷系统中，导风环16设置在风车叶片1上，并且在包含风力发电机3的转子壳体6上设有氧化锌元件18，以便面对导体环 因此，如果导致长时间流过大电流的冬季的雷电击中风车叶片1，则有效地保护风力发电装置。

公开(公告)号：US5764129A

公开(公告)日：1998-06-09

申请号：US622468

申请日：1996-03-25

申请人： Moritaka Syouji ,  Tadashi Kitami ,  Seiichi Yamada ,  Ken Takahashi ,  Shingo Shirakawa ,  Takeo Yamazaki ,  Shigeru Tanaka ,  Shigehisa Motowaki

发明人： Moritaka Syouji ,  Tadashi Kitami ,  Seiichi Yamada ,  Ken Takahashi ,  Shingo Shirakawa ,  Takeo Yamazaki ,  Shigeru Tanaka ,  Shigehisa Motowaki

IPC分类号： C04B35/453 ,  H01C7/00 ,  H01C7/10 ,  H01C7/112 ,  H01C17/06 ,  H01H33/16 ,  H01H33/64

CPC分类号： H01C7/112 ,  H01H33/165

摘要： A ceramic resistor includes zinc oxide as a main component, and as essential components, aluminum oxide 3.0-40 mol %, magnesium oxide 2.0-40 mol %, silicon oxide 0.1-10 mol %, and at least one kind of compound 0.005-0.5 mol %, selected from a group consisting of calcium oxide, strontium oxide and barium oxide, and has a positive temperature coefficient of resistance. A neutral grounding resistor and a gas circuit breaker, each using the above-mentioned ceramic resistors, are disclosed.

摘要翻译： 陶瓷电阻器包括氧化锌作为主要成分，作为必要成分，氧化铝3.0-40摩尔％，氧化镁2.0-40摩尔％，氧化硅0.1-10摩尔％，至少一种化合物0.005-0.5 mol％，选自氧化钙，氧化锶和氧化钡，并具有正温度系数的电阻。 公开了使用上述陶瓷电阻器的中性点接地电阻器和气体断路器。

公开(公告)号：US4736183A

公开(公告)日：1988-04-05

申请号：US748166

申请日：1985-06-24

申请人： Takeo Yamazaki ,  Satoru Ogihara ,  Tetsuo Kosugi ,  Shingo Shirakawa ,  Shinichi Owada

发明人： Takeo Yamazaki ,  Satoru Ogihara ,  Tetsuo Kosugi ,  Shingo Shirakawa ,  Shinichi Owada

IPC分类号： H01C7/00 ,  H01C7/112 ,  H01C17/30 ,  H01H9/42 ,  H01C7/10

CPC分类号： H01C7/001 ,  H01C17/30 ,  H01C7/112 ,  H01H9/42

摘要： A composite sintered oxide resistor comprising crystal grains of zinc oxide and crystal grains of a zinc oxide compound of other metal or semi-metal element than zinc, and a grain boundary layer having an electric resistance equal to or lower than that of the crystal grains and which of zinc oxide between the individual crystal grains has a very large withstanding capacity against switch surge, a small non-linear coefficient of voltage in the voltage-current characteristics, a positive, smaller resistance-temperature coefficient, and a small percent change in resistivity after heat treatment at 500.degree. C. in the atmosphere.

摘要翻译： 1.一种复合烧结氧化物电阻体，其包含氧化锌的晶粒和除了锌以外的其他金属或半金属元素的氧化锌化合物的晶粒，以及具有等于或低于所述晶粒的电阻的晶界层，以及 单个晶粒之间的氧化锌中的哪一个对开关浪涌具有非常大的耐受容量，电压 - 电流特性中的非线性电压系数小，电阻温度系数更小，电阻率的小百分比变化 经过500℃的大气热处理后，

公开(公告)号：US4675773A

公开(公告)日：1987-06-23

申请号：US795265

申请日：1985-11-05

申请人： Shingo Shirakawa ,  Seiichi Maruyama ,  Seizo Nakano ,  Eichi Okamoto ,  Kenji Kohara

发明人： Shingo Shirakawa ,  Seiichi Maruyama ,  Seizo Nakano ,  Eichi Okamoto ,  Kenji Kohara

IPC分类号： H02H3/02 ,  H01T4/02 ,  H01T15/00 ,  H02H1/00 ,  H02H3/00 ,  H02H7/22 ,  H02H7/24 ,  H02H7/26

CPC分类号： H02H7/22 ,  H02H1/0069

摘要： A transmission line protection system arranged such that a leakage current detector is provided at an end of an insulating device such as an insulator connected at one end to a corresponding one of arms of a steel tower and connected at the other end to a transmission line of each phase, thereby detecting an arrester leakage current flowing in the transmission line of each phase, an output signal of the leakage current detector being led to a repeater through an optical fiber cable, an output of the repeater being transferred to a control/supervisory board in a substation through an optical fiber cable. In the control/supervisory board, preferably, a received digital signal which was converted from an analog signal at said leakage current detector is displayed on a cathode ray tube. In such an arrangement, it is possible to smoothly perform supervision of the status of the transmission lines without causing maloperations due to influences from the transmission lines.

摘要翻译： 一种传输线路保护系统，其布置成使得漏电流检测器设置在诸如绝缘装置的端部处，绝缘装置的一端连接到钢塔的相应一个臂并在另一端连接到传输线 从而检测在每相的传输线中流过的避雷器泄漏电流，漏电流检测器的输出信号通过光缆被引导到中继器，中继器的输出被传送到控制/监控板 在变电站通过光缆。 在控制/监控板中，优选地，在阴极射线管上显示从所述泄漏电流检测器的模拟信号转换的接收数字信号。 在这种布置中，可以平滑地执行传输线状态的监视，而不会由于来自传输线的影响而导致错误操作。

公开(公告)号：US5680316A

公开(公告)日：1997-10-21

申请号：US640093

申请日：1996-04-30

申请人： Shingo Shirakawa ,  Shirou Murosawa

发明人： Shingo Shirakawa ,  Shirou Murosawa

IPC分类号： H01C7/10 ,  G01R22/04 ,  G01R31/12 ,  G01R31/02

CPC分类号： B07C5/34 ,  G01R31/1236 ,  G01R22/04

摘要： The discharge capability of zinc oxide elements is determined. A current of a given energy quantity is allowed to flow through a zinc oxide element to generate heat. The element is photographed by a camera and the temperature distribution of the element is obtained from the photographed image. The maximum temperature and the minimum temperature are determined and simultaneously the distance l between the points which show both the temperatures is determined. The difference .DELTA.T between the maximum temperature and the minimum temperature is divided by the distance l to obtain an index .DELTA.T/l. The relation between the index and the discharge capability is previously obtained and this relation is stored in a memory. Using the stored relation, a discharge capability corresponding to the obtained index is obtained.

摘要翻译： 确定氧化锌元件的放电能力。 允许给定能量的电流流过氧化锌元件以产生热量。 通过照相机拍摄该元件，并且从拍摄图像获得元件的温度分布。 确定最高温度和最低温度，同时确定显示两个温度的点之间的距离l。 将最大温度和最低温度之间的差ΔTA除以距离l以获得指数DELTA T / l。 预先获得指标与放电能力之间的关系，并将该关系存储在存储器中。 使用所存储的关系，获得与获得的指数相对应的放电能力。

公开(公告)号：US5590018A

公开(公告)日：1996-12-31

申请号：US501878

申请日：1995-07-13

申请人： Satoshi Watahiki ,  Shingo Shirakawa

发明人： Satoshi Watahiki ,  Shingo Shirakawa

IPC分类号： H02B13/02 ,  H02B5/06 ,  H02B1/04

CPC分类号： H02B5/06

摘要： The arrestors of a compact gas insulated switchgear are to be connected to gas insulated main buses. The arrestors represent three phases, and are arranged in such a manner that the distance from a main bus which is located at the outermost position among a plurality of main buses to at least one arrestor for one phase is differentiated from the distances from the outermost main bus to at least one of the remaining arrestors. As a result, the area or the width required for installing the arrestors is minimized, the length of the main buses is shortened, and the installation area of the gas insulated switchgear as a whole can be reduced.

摘要翻译： 紧凑型气体绝缘开关柜的避雷器应与气体绝缘主母线连接。 避雷器表示三相，并且以这样的方式布置，使得从位于多个主母线中的最外侧位置的主母线到至少一个相位的至少一个避雷器的距离与距离最外侧主体的距离不同 巴士至少还有一个其余的避雷器。 结果，安装避雷器所需的面积或宽度最小化，主母线的长度缩短，整体上气体绝缘开关装置的安装面积减小。

公开(公告)号：US5515231A

公开(公告)日：1996-05-07

申请号：US145220

申请日：1993-11-03

申请人： Shingo Shirakawa ,  Shuichi Terakado

发明人： Shingo Shirakawa ,  Shuichi Terakado

IPC分类号： H01C7/12 ,  H02H3/04 ,  H02H7/12 ,  H02H9/06

CPC分类号： H01C7/12 ,  H02H3/048 ,  H02H7/1206

摘要： An object of the present invention is to provide a thyristor valve arrester capable of measuring leakage currents of arrester elements in a simple construction and a DC power transmission thyristor valve having it used therein.A multiple of laminated arrester sets are arranged in parallel with a multiple of thyristor valves. Each arrester set is made of a plurality of arrester units arranged in parallel. Each adjoining arrester sets has through an insulator an inter-stage connecting conductor therebetween at a position corresponding to the respective thyristor valve terminals. An end of each arrester set and the respective inter-stage connecting conductors have a leakage current ammeter and a surge counter connected therebetween in electrical parallel. Each inter-stage connecting conductor and the respective thyristor valve stage are connected together by a thyristor valve connecting conductor.

摘要翻译： 本发明的目的是提供一种能够以简单的结构测量避雷器元件的泄漏电流的晶闸管阀门避雷器以及在其中使用的直流电力传输晶闸管阀。 多个层叠避雷器组与多个晶闸管并联排列。 每个避雷器组由并排布置的多个避雷器单元制成。 每个相邻的避雷器组在与各个可控硅阀端子对应的位置处通过绝缘体穿过其间的级间连接导体。 每个避雷器组和各个级间连接导体的端部具有电并联的泄漏电流电流表和浪涌计数器。 每个级间连接导体和相应的晶闸管阀级通过晶闸管阀连接导体连接在一起。

公开(公告)号：US4262318A

公开(公告)日：1981-04-14

申请号：US16825

申请日：1979-03-02

申请人： Shingo Shirakawa ,  Yutaka Kitano ,  Yoshio Kawai ,  Siniti Owada

发明人： Shingo Shirakawa ,  Yutaka Kitano ,  Yoshio Kawai ,  Siniti Owada

IPC分类号： H02B13/02 ,  H01C7/12 ,  H01T1/16 ,  H02H9/04

CPC分类号： H01C7/12

摘要： A zinc-oxide surge arrester, in which a plurality of zinc-oxide elements each having a through hole at a central portion are stacked in such a manner that an insulating supporting rod having at least one fixed end is inserted in the through hole of each element, can increase the heat transfer area of the element and simplify the supporting structure.

摘要翻译： 一种氧化锌避雷器，其中在中心部分具有通孔的多个氧化锌元件以这样的方式堆叠，使得具有至少一个固定端的绝缘支撑杆插入到每个的通孔中 元件，可以增加元件的传热面积并简化支撑结构。

公开(公告)号：US5614138A

公开(公告)日：1997-03-25

申请号：US384954

申请日：1995-02-07

申请人： Seiichi Yamada ,  Shigeru Tanaka ,  Moritaka Shoji ,  Shigehisa Motowaki ,  Ken Takahashi ,  Shingo Shirakawa ,  Shinichi Oowada ,  Takeo Yamazaki

发明人： Seiichi Yamada ,  Shigeru Tanaka ,  Moritaka Shoji ,  Shigehisa Motowaki ,  Ken Takahashi ,  Shingo Shirakawa ,  Shinichi Oowada ,  Takeo Yamazaki

IPC分类号： H01C7/112 ,  H01B1/06

CPC分类号： H01C7/112

摘要： A mixture of calcinated metallic oxides are mixed with ZnO and SiO.sub.2, granulated, compacted and then sintered to form a nonlinear resistor. After sintering, the formed ZnO resistor elements are heat treated, preferably in a two-step heat treating process.

摘要翻译： 将煅烧的金属氧化物的混合物与ZnO和SiO 2混合，造粒，压实，然后烧结形成非线性电阻。 在烧结之后，形成的ZnO电阻元件被热处理，优选在两步热处理过程中。