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1. 发明申请

US20090027062A1 PARTIAL DISCHARGE DETECTION DEVICE 有权
标题翻译：部分放电检测装置
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。

2. 发明申请

US20100102036A1 GAS INSULATED CIRCUIT BREAKER SYSTEM AND GAS INSULATED CIRCUIT BREAKER MONITORING METHOD 失效
标题翻译：气体绝缘断路器系统和气体绝缘断路器监测方法
公开(公告)号：US20100102036A1
公开(公告)日：2010-04-29
申请号：US12580527
申请日：2009-10-16
申请人： Shiro MARUYAMA , Takashi Nakajima , Hiroyuki Hayata , Kazuhide Bannai , Kozo Matsushita , Hideo Ishizuka
发明人： Shiro MARUYAMA , Takashi Nakajima , Hiroyuki Hayata , Kazuhide Bannai , Kozo Matsushita , Hideo Ishizuka
IPC分类号： H01H33/16
CPC分类号： H01H33/168
摘要： A gas insulated circuit breaker system has: a container that encapsulates insulating gas; a main contact in the container that opens/closes the main circuit; a resistor contact in the container, connected in parallel to the main contact, to be opened after elapse of a predetermined time after the main contact is opened and to be closed at a predetermined time before the main contact is closed; a resistor in the container, serially connected to the resistor contact and connected in parallel to the main contact together with the resistor contact; a temperature sensor that measures temperature of surrounding of the resistor; and a temperature estimation section that estimates a temperature of the resistor based on a timing of opening/closing operation of the main contact, a current flowing through the main circuit and the measured temperature.
摘要翻译：气体绝缘断路器系统具有：封装绝缘气体的容器; 容器中的主要接触器，用于打开/关闭主电路; 容器中与主触头并联连接的电阻触点在主触点断开之后经过预定时间后打开，并且在主触点闭合之前的预定时间关闭; 容器中的电阻器，串联连接到电阻器触点，并与电阻触点一起并联连接到主触点; 测量电阻周围温度的温度传感器; 以及温度推定部，其基于主触点的打开/闭合操作的定时，流过主电路的电流和测量的温度来估计电阻器的温度。

3. 发明申请

US20110181989A1 TRANSFORMER INRUSH CURRENT SUPPRESSION APPARATUS 有权
标题翻译：变压器INRUSH电流抑制装置
公开(公告)号：US20110181989A1
公开(公告)日：2011-07-28
申请号：US13014892
申请日：2011-01-27
申请人： Keisuke UDAGAWA , Tadashi KOSHIZUKA , Shiro MARUYAMA , Minoru SAITO , Noriyuki NAGAYAMA
发明人： Keisuke UDAGAWA , Tadashi KOSHIZUKA , Shiro MARUYAMA , Minoru SAITO , Noriyuki NAGAYAMA
IPC分类号： H02H7/04
CPC分类号： H02H9/002 , H01H9/563 , H02H7/04 , Y10T307/826
摘要： Inrush current suppression apparatus for suppressing a transformer inrush current including a transformer side voltage measurement unit which measures a voltage at a side of a transformer, a residual magnetic flux calculation unit which calculates three line-to-line residual magnetic fluxes, a power supply side voltage measurement unit which measures a voltage at a side of a power supply, a stable-state magnetic flux calculation unit which calculates three line-to-line stable-state magnetic fluxes, based on the voltage at the side of the power supply, a phase determination unit which determines a phase in which phases of the three line-to-line stable-state magnetic fluxes are respectively the same in polarity as phases of the three line-to-line residual magnetic fluxes, and a closing unit which closes the circuit breaker in the phase determined by the phase determination unit.
摘要翻译：用于抑制变压器浪涌电流的浪涌电流抑制装置，包括测量变压器一侧的电压的变压器侧电压测量单元，计算三个线间剩余磁通量的剩余磁通计算单元，电源侧电压测量单元，其测量电源侧的电压;稳定磁通计算单元，其基于电源侧的电压来计算三个线间稳定磁通; 确定三相线间稳定磁通的相位在三线间剩余磁通的相位极性相同的相位的相位确定单元，以及关闭单元断相器由相位确定单元确定的相位。

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