公开(公告)号：US08981761B2

公开(公告)日：2015-03-17

申请号：US12896020

申请日：2010-10-01

申请人： Shiro Maruyama ,  Toshihiro Hoshino ,  Takaaki Sakakibara

发明人： Shiro Maruyama ,  Toshihiro Hoshino ,  Takaaki Sakakibara

IPC分类号： G01R31/00 ,  G01R31/02 ,  H01H9/50 ,  G01R31/12

CPC分类号： G01R31/1254

摘要： A partial discharge detector for gas-insulated electric apparatus of an embodiment detects an electromagnetic wave ascribable to partial discharge in a gas-insulated electric apparatus which is filled with insulating gas, and in which a conductor to which high voltage is applied is supported in conductor supporting holes provided at centers of a plurality of disk-shaped insulating plates, and a plurality of flanged-conductive pipes form a hermetically sealed container, with flange portions thereof pressingly sandwiching and holding peripheral edge portions of the insulating plates from both surface sides. The partial discharge detector for gas-insulated electric apparatus of this embodiment is characterized in that an antenna detecting the electromagnetic wave is disposed in close contact on a portion, of each of the insulating plates, exposed from the flange portions of the flanged conductive pipes, via an elastic member capable of transmitting the electromagnetic wave.

摘要翻译： 实施例的气体绝缘电气设备的局部放电检测器在填充有绝缘气体的气体绝缘电气设备中检测归因于局部放电的电磁波，并且其中施加高电压的导体被支撑在导体中 设置在多个盘状绝缘板的中心处的支撑孔和多个法兰导电管形成密封容器，其凸缘部分从两个表面侧按压夹持并保持绝缘板的周边部分。 本实施方式的气体绝缘电气设备的局部放电检测器的特征在于，检测电磁波的天线紧密接触在每个绝缘板的从凸缘导电管的凸缘部露出的部分上， 通过能够传送电磁波的弹性构件。

公开(公告)号：US5895311A

公开(公告)日：1999-04-20

申请号：US869217

申请日：1997-06-04

申请人： Takekazu Shiotani ,  Kimihiro Wakabayashi ,  Kazutoshi Hamada ,  Takaaki Sakakibara ,  Toshimasa Fujisawa

发明人： Takekazu Shiotani ,  Kimihiro Wakabayashi ,  Kazutoshi Hamada ,  Takaaki Sakakibara ,  Toshimasa Fujisawa

IPC分类号： B23H1/00 ,  B24B17/10 ,  B24B19/14 ,  B24B49/16 ,  B24B49/00 ,  B24B1/00 ,  B24B7/02

CPC分类号： B23H1/00 ,  B24B17/10 ,  B24B19/14 ,  B24B49/16 ,  Y10S451/913

摘要： An abrasive apparatus adopted to abrade a curved surface of workpiece includes: an abrading head including an abrading tip having a substantially spherical outer surface and a rotating shaft supporting the abrading tip, the abrading head being positioned to face the curved surface; a thrust moving mechanism for relatively moving the abrading head and the curved surface; a lateral moving mechanism for relatively moving the abrading head and the curved surface; a pivotal moving mechanism for relatively moving the abrading head and the curved surface pivotally around a center point; and a controller for controlling the abrading head, the thrust moving mechanism, the lateral moving mechanism and the pivotal moving mechanism synchronously so that the abrading tip contacts and presses the curved surface at any point thereon with a substantially constant pressure in a direction consistent with a normal line thereat. An angle adjuster supporting the abrading head for adjusting an angle of the rotating shaft against the curved surface is also disclosed.

摘要翻译： 用于研磨工件的曲面的研磨装置包括：研磨头，其包括具有大致球形的外表面的研磨尖端和支撑研磨尖端的旋转轴，研磨头定位成面对弯曲表面; 用于相对移动研磨头和曲面的推力移动机构; 用于相对移动研磨头和弯曲表面的横向移动机构; 枢转运动机构，用于使研磨头和弯曲表面围绕中心点枢转地相对移动; 以及用于同时控制研磨头，推力移动机构，横向移动机构和枢转运动机构的控制器，使得研磨尖端在与其一致的方向上具有基本上恒定的压力的任何点处接触并按压曲面 正常线 还公开了一种支撑用于调节旋转轴相对于弯曲表面的角度的研磨头的角度调节器。

公开(公告)号：US4404423A

公开(公告)日：1983-09-13

申请号：US305225

申请日：1981-09-24

申请人： Takaaki Sakakibara ,  Yoshihiro Kanno

发明人： Takaaki Sakakibara ,  Yoshihiro Kanno

IPC分类号： H02G5/06

CPC分类号： H02G5/066

摘要： A three-phase gas insulated bus has three high voltage conductors inside a grounded cylindrical metal sheath filled with an insulating gas. The conductors are integrally supported by a single spacer having three supporting parts. The spacer is radially slidably coupled with the inner wall of the sheath.

摘要翻译： 三相气体绝缘母线在接地的圆柱形金属护套内装有绝缘气体，具有三根高压导体。 导体由具有三个支撑部分的单个间隔件一体地支撑。 间隔件与护套的内壁径向可滑动地联接。

公开(公告)号：US20110080161A1

公开(公告)日：2011-04-07

申请号：US12896020

申请日：2010-10-01

申请人： Shiro Maruyama ,  Toshihiro Hoshino ,  Takaaki Sakakibara

发明人： Shiro Maruyama ,  Toshihiro Hoshino ,  Takaaki Sakakibara

IPC分类号： G01R31/00

CPC分类号： G01R31/1254

摘要： A partial discharge detector for gas-insulated electric apparatus of an embodiment detects an electromagnetic wave ascribable to partial discharge in a gas-insulated electric apparatus which is filled with insulating gas, and in which a conductor to which high voltage is applied is supported in conductor supporting holes provided at centers of a plurality of disk-shaped insulating plates, and a plurality of flanged-conductive pipes form a hermetically sealed container, with flange portions thereof pressingly sandwiching and holding peripheral edge portions of the insulating plates from both surface sides. The partial discharge detector for gas-insulated electric apparatus of this embodiment is characterized in that an antenna detecting the electromagnetic wave is disposed in close contact on a portion, of each of the insulating plates, exposed from the flange portions of the flanged conductive pipes, via an elastic member capable of transmitting the electromagnetic wave.

摘要翻译： 实施例的气体绝缘电气设备的局部放电检测器在填充有绝缘气体的气体绝缘电气设备中检测归因于局部放电的电磁波，并且其中施加高电压的导体被支撑在导体中 设置在多个盘状绝缘板的中心处的支撑孔和多个法兰导电管形成密封容器，其凸缘部分从两个表面侧按压夹持并保持绝缘板的周边部分。 本实施方式的气体绝缘电气设备的局部放电检测器的特征在于，检测电磁波的天线紧密接触在每个绝缘板的从凸缘导电管的凸缘部露出的部分上， 通过能够传送电磁波的弹性构件。

公开(公告)号：US07746082B2

公开(公告)日：2010-06-29

申请号：US11949585

申请日：2007-12-03

申请人： Shiro Maruyama ,  Takaaki Sakakibara ,  Toshihiro Hoshino

发明人： Shiro Maruyama ,  Takaaki Sakakibara ,  Toshihiro Hoshino

IPC分类号： G01R31/02 ,  H01H9/50

CPC分类号： G01R31/1254

摘要： The present invention provides a high-performance partial discharge detection device which is user-friendly and compact and which allows detection of the electromagnetic waves caused by partial discharge, over a wide bandwidth with a simple constitution and a favorable S/N ratio. The waveguide antenna which receives electromagnetic waves that leak from the insulating spacer is attached to the outer circumferential face of the insulating spacer. The waveguide antenna is constituted by a waveguide portion and a coaxial cable connector which is installed on the waveguide portion. The waveguide portion has a metal short-circuit plate provided at one end thereof, and an opening formed at the other end thereof, which covers part of the outer circumferential face of the insulating spacer.

摘要翻译： 本发明提供了一种用户友好且紧凑的高性能局部放电检测装置，其能够以简单的结构和良好的S / N比在宽带宽上检测由局部放电引起的电磁波。 接收从绝缘间隔件漏出的电磁波的波导天线安装在绝缘间隔物的外周面上。 波导天线由安装在波导部分上的波导部分和同轴电缆连接器构成。 波导部分具有设置在其一端的金属短路板和形成在其另一端的开口，该开口覆盖绝缘隔板的外周面的一部分。

公开(公告)号：US06522247B2

公开(公告)日：2003-02-18

申请号：US09861725

申请日：2001-05-22

申请人： Shiro Maruyama ,  Takaaki Sakakibara ,  Kyoichi Uehara ,  Masayuki Akazaki

发明人： Shiro Maruyama ,  Takaaki Sakakibara ,  Kyoichi Uehara ,  Masayuki Akazaki

IPC分类号： G08B2900

CPC分类号： H01H1/0015 ,  G05B23/0237 ,  G05B23/0272

摘要： A data acquisition and transmitting unit samples the signal indicating the apparatus state quantity from a sensor provided on an apparatus, converts the signal into absolute-time-tagged monitoring data S(t), stores the data S(t), and transmits the data S(t) to a network. A digital protection and control unit takes in the quantity data E about the system of the apparatus and the operating state data P about the apparatus, converts these data into absolute-time-tagged data E(t) and operating state data P(t), stores these converted data, and transmits these data E(t) and P(t) to the network. A data display unit receives the data S(t), E(t), and P(t) from the data acquisition and transmitting unit and digital protective and control unit via the network and displays the state of the apparatus on the basis of the data S(t), E(t), and P(t).

摘要翻译： 数据采集​​和发送单元从设备上提供的传感器采样表示设备状态量的信号，将信号转换为绝对时间标记的监视数据S（t），存储数据S（t），并传送数据 S（t）到网络。 数字保护和控制单元获取关于装置系统的数量数据E和关于装置的操作状态数据P，将这些数据转换为绝对时间标记数据E（t）和操作状态数据P（t） 存储这些转换的数据，并将这些数据E（t）和P（t）发送到网络。 数据显示单元经由网络从数据采集发送单元和数字保护和控制单元接收数据S（t），E（t）和P（t），并基于该信息显示装置的状态 数据S（t），E（t）和P（t）。

公开(公告)号：US5200737A

公开(公告)日：1993-04-06

申请号：US799945

申请日：1991-11-29

申请人： Katsumi Konishi ,  Takaaki Sakakibara

发明人： Katsumi Konishi ,  Takaaki Sakakibara

IPC分类号： G01R31/12 ,  G01R31/327 ,  H01H33/26 ,  H02B13/065 ,  H02H5/00

CPC分类号： G01R31/1254 ,  G01R31/3275 ,  H01H33/26

摘要： A system and method for detecting partial discharge of gas-insulated switchgear wherein a high-frequency component and the fundamental wave component of the voltage applied to the conductor of the gas-insulated switchgear are detected, the zero-cross point of the fundamental wave component is set as the starting point for the voltage, and the presence of partial discharge and the reason for the occurrence of partial discharge are ascertained based on the phase difference between the phase of the detected high-frequency component and the phase of the starting point of the voltage.

公开(公告)号：US20090027062A1

公开(公告)日：2009-01-29

申请号：US11949585

申请日：2007-12-03

申请人： Shiro MARUYAMA ,  Takaaki Sakakibara ,  Toshihiro Hoshino

发明人： Shiro MARUYAMA ,  Takaaki Sakakibara ,  Toshihiro Hoshino

IPC分类号： G01R31/02

CPC分类号： G01R31/1254

摘要： The present invention provides a high-performance partial discharge detection device which is user-friendly and compact and which allows detection of the electromagnetic waves caused by partial discharge, over a wide bandwidth with a simple constitution and a favorable S/N ratio. The waveguide antenna which receives electromagnetic waves that leak from the insulating spacer is attached to the outer circumferential face of the insulating spacer. The waveguide antenna is constituted by a waveguide portion and a coaxial cable connector which is installed on the waveguide portion. The waveguide portion has a metal short-circuit plate provided at one end thereof, and an opening formed at the other end thereof, which covers part of the outer circumferential face of the insulating spacer.

摘要翻译： 本发明提供了一种用户友好且紧凑的高性能局部放电检测装置，其能够以简单的结构和良好的S / N比在宽带宽上检测由局部放电引起的电磁波。 接收从绝缘间隔件漏出的电磁波的波导天线安装在绝缘间隔物的外周面上。 波导天线由安装在波导部分上的波导部分和同轴电缆连接器构成。 波导部分具有设置在其一端的金属短路板和形成在其另一端的开口，该开口覆盖绝缘隔板的外周面的一部分。