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1. 发明专利

JP2013233059A Gas-insulated switchgear 审中-公开
标题翻译：气体绝缘开关
公开(公告)号：JP2013233059A
公开(公告)日：2013-11-14
申请号：JP2012104880
申请日：2012-05-01
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： YANAI TAKETO , ITO KEITA
IPC分类号： H02B13/025 , H02B1/28 , H02B13/02
摘要： PROBLEM TO BE SOLVED: To provide a gas-insulated switchgear that suppresses diffusion of cracked gas to other gas sections and implements a compact metal container.SOLUTION: The gas-insulated switchgear includes piping 1a, 1b for interconnecting a plurality of gas sections 8a, 8b defined in a metal container 6; and a valve element storage section 4 having a cylindrical form having a larger outside diameter than the outside diameter of the piping 1a, 1b, establishing gas communication between the gas sections 8a, 8b, and storing a disklike valve element 3. If a gas pressure rise value following a flashover caused in the gas sections 8a, 8b is less than a predetermined pressure, the valve element 3 moves in the valve element storage section 4 to block gas communication between the gas section with the gas pressure rise and the gas sections other than the gas section, and if the gas pressure rise value is equal to or higher than the predetermined pressure, the valve element 3 breaks before the gas pressure rise value reaches a permissible pressure higher than the predetermined pressure.
摘要翻译：要解决的问题：提供一种气体绝缘开关装置，其抑制裂纹气体扩散到其他气体部分并实现紧凑的金属容器。解决方案：气体绝缘开关装置包括：管道1a，1b，用于将多个气体部分8a， 8b限定在金属容器6中; 以及具有比管道1a，1b的外径大的外径的圆筒形状的阀元件收纳部4，在气体部8a，8b之间建立气体连通，并且容纳盘状阀元件3.如果气体压力在气体部分8a，8b中引起的闪络之后的上升值小于预定压力，阀元件3在阀元件存储部分4中移动，以阻止气体部分与气体压力升高之间的气体连通和其它气体部分气体压力上升值等于或高于预定压力时，在气体压力上升值达到高于预定压力的容许压力之前，阀元件3断裂。

2. 发明专利

JPH08313760A OPTICAL CONNECTOR 失效
公开(公告)号：JPH08313760A
公开(公告)日：1996-11-29
申请号：JP12010095
申请日：1995-05-18
申请人： MITSUBISHI ELECTRIC CORP
发明人： WATANABE MASAMI , ITO KEITA
IPC分类号： G02B6/36 , G02B6/38
摘要： PURPOSE: To lessen the optical coupling loss between optical fibers to each other. CONSTITUTION: A coupled receptacle 2 and plug 3 are supported by a supporting member 12. The receptacle 2 is fixed by a retaining member 13 and the plug 3 is fixed by a retaining member 14. As a result, the receptacle 2 and the plug 3 vibrate at the same mode when vibration or impact are applied thereon and, therefore, the generation of a spacing in the contact parts between both optical fibers 5 and 8 is suppressed and the errors of the light signals transmitted between both optical fibers 5 and 8 are decreased.

3. 发明专利

JP2003294805A Accident point locator 审中-公开
标题翻译：事故点定位器
公开(公告)号：JP2003294805A
公开(公告)日：2003-10-15
申请号：JP2002095986
申请日：2002-03-29
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： ITO KEITA
IPC分类号： G01R31/08
摘要： PROBLEM TO BE SOLVED: To provide an accident point locator which is easily installed and whose installation cost is low.
SOLUTION: There are provided a current transformer which converts a primary current of a high-voltage bus line installed in the air into a secondary current or a secondary voltage, an optical sensor which converts a magnetic field of the secondary current of the transformer or a secondary voltage into an optical signal, a high voltage side-ground side communication porcelain tube in which an optical fiber is housed that transfers the optical signal of the optical sensor from a high-voltage bus line side to a ground side, and a signal processing part installed on a ground which performs photoelectric conversion with the optical signal transferred through an optical fiber and an optical cable out of the optical fiber housed in the high voltage side-ground side communication porcelain tube, to take out an output voltage proportional to a voltage or a magnetic field which is received by the optical sensor. The high voltage side-ground side communication porcelain tube is hung from the high-voltage bus line.
COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供易于安装并且安装成本低的事故点定位器。
解决方案：提供一种电流互感器，其将安装在空气中的高压总线的初级电流转换成次级电流或二次电压;光学传感器，其将二次电流的磁场转换为变压器或次级电压转换为光信号，高压侧地侧通信瓷管，其中容纳光纤，其将光传感器的光信号从高压总线侧传送到接地侧;以及信号处理部，其安装在地面上，通过光纤传输的光信号进行光电转换，并将光缆从位于高压侧地侧通信瓷管中的光纤出射，以取出输出电压成比例到由光学传感器接收的电压或磁场。高压侧面通信瓷管挂在高压母线上。版权所有（C）2004，JPO

4. 发明专利

JPH09189752A FIBER-OPTIC CURRENT AND MAGNETIC FIELD SENSOR 失效
公开(公告)号：JPH09189752A
公开(公告)日：1997-07-22
申请号：JP78496
申请日：1996-01-08
申请人： MITSUBISHI ELECTRIC CORP
发明人： ISHIZAKA HIDEAKI , NAGAO EIICHI , ITO KEITA
IPC分类号： G01R33/032 , G01R15/24
摘要： PROBLEM TO BE SOLVED: To improve the measurement accuracy of a fiber-optic current and magnetic field sensor against temperature changes by deciding the length of the optical path of a magneto- optical element from a specific formula by using the Verdet constant of the element and the temperature coefficient of the constant. SOLUTION: The light emitted from a light source 11 and having a wavelength of 850nm is polarized into linearly polarized light by means of a polarizer 12 after being propagated through a first fiber 20a and the polarized light is made incident to a magneto-optical element 13a by which the plane of polarization is rotated by a Farady effect. The linearly polarized light coming out from the element 13a is made incident to a Bi12 GeO20 element 13b by which the plane of polarization is further rotated by a Farady effect and further made incident to an analyzer 14 which gives intensity modification to the light. The linearly polarized light coming out from the analyzer 14 is made incident to an optical receiver 15 after being propagated through a second optical fiber 20b and the receiver 15 detects the light as the electric signal corresponding to the intensity of the light. As a result, the intensity of a magnetic field is measured. The length L of the optical path of the element 13a is decided from formula I when the optical axes of the polarizer 12 and analyzer 14 are parallel to each other or from formula II when the optical axes intersect each other at right angles. The VO and α in the formulae respectively represent the Verdet constant of the element 13a at the center operating temperature and the temperature efficiency of the constant.

5. 发明专利

JPH07326526A AIR-CORE TRANSFORMER 失效
公开(公告)号：JPH07326526A
公开(公告)日：1995-12-12
申请号：JP12130994
申请日：1994-06-02
申请人： MITSUBISHI ELECTRIC CORP
发明人： ITO KEITA , OGURA SHINZO
IPC分类号： H01F37/00 , H01F30/08 , H01F38/28
摘要： PURPOSE:To accurately measure current by providing a core with a means that regulates secondary coil position, for even winding of the secondary coil, and preventing displacement of the secondary coil. CONSTITUTION:A recessed part 7 is formed at the corner on the inside periphery side of a core 6, and a recessed part 8 is formed at the corner on the outside periphery side. A coil 4 is wound, while engaged with the recessed part 7 at the inside periphery part and with the recessed part 8 at the outside periphery part, so that a secondly coil 5 is formed. Thus, at the corners where the secondary coil 5 of inside periphery side and outside periphery side of the core 6 contacts, the recessed parts 7 and 8 are formed, and the secondary coil 5 is engaged inside, so that the secondary coil 5 is evenly wound, and the displacement after winding is prevented.

6. 发明专利

JP2006337358A Voltage detection system for gas-insulated device 审中-公开
标题翻译：用于气体绝缘装置的电压检测系统
公开(公告)号：JP2006337358A
公开(公告)日：2006-12-14
申请号：JP2006122859
申请日：2006-04-27
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： MIYASHITA MAKOTO , INAMI KIYOSHI , HORINOUCHI YUSAKU , HANEUMA HIROYUKI , ITO KEITA , ISHIGAKI KAZUMI , ITO FUMIO
IPC分类号： G01R15/06 , H02B3/00 , H02B13/02
CPC分类号： G01R15/16
摘要： PROBLEM TO BE SOLVED: To reduce the voltage sharing ratio of the low-voltage side of an intermediate electrode, in the voltage detection system of a gas-insulated device and reduce the overvoltage in the voltage detection system, thereby preventing dielectric breakdown. SOLUTION: Divided voltage by a first capacitor, comprising an intermediate electrode 3 which is formed concentrically in a tubular shape, in a grounded metallic tank 1 so that it is separated from a bus 2 by a predetermined distance and the grounded metallic tank 1, and a voltage detection second capacitor 10 is applied to a voltage sensor 12 to detect the voltage of the bus 2. By providing a circular support conductor 31 at the outer periphery of the intermediate electrode 3 via a circular insulating layer 5 and supporting the circular support conductor 31 on the inner periphery of the grounded metallic tank 1 by a support conductor connecting member 31a, the capacitance between the intermediate electrode 3 and the grounded metallic tank 1 is reduced, thereby the voltage sharing ratio is reduced. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了降低中间电极的低压侧的分压比，在气体绝缘装置的电压检测系统中，降低电压检测系统中的过电压，从而防止电介质击穿。解决方案：通过第一电容器的分压，包括在管状形状上同心地形成的中间电极3，在接地的金属槽1中，使其与总线2分开预定距离，并且接地的金属罐 1，并且电压检测用第二电容器10被施加到电压传感器12以检测总线2的电压。通过圆形绝缘层5在中间电极3的外周提供圆形的支撑导体31，通过支撑导体连接构件31a在接地的金属罐1的内周上的圆形支撑导体31，中间电极3和接地的金属槽1之间的电容减小，从而降低了分压比。版权所有（C）2007，JPO＆INPIT

7. 发明专利

JP2003329722A Failure-point locating apparatus 审中-公开
标题翻译：故障点定位装置
公开(公告)号：JP2003329722A
公开(公告)日：2003-11-19
申请号：JP2002139513
申请日：2002-05-15
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： ITO KEITA
IPC分类号： G01R31/08 , H02H7/26
CPC分类号： Y04S10/522
摘要： PROBLEM TO BE SOLVED: To provide a failure-point locating apparatus of a current differential system for precisely locating a failure point, in such a way that current transformers on both sides of a locating section by the failure-point locating apparatus are formed by combining an optical current transformer with a core- type current transformer.
SOLUTION: The failure-point locating apparatus is constituted in such a way that the current transformers are arranged on both sides of the locating section used to locate the failure point of an electrical circuit, that the current transformer on one side in the locating apparatus of the current differential system used to locate the failure point on the basis of a current difference detected by the respective current transformers is formed as an air-core current transformer, that the current transformer on the other side is formed as the core-type current transformer 31, and that an auxiliary air-core current transformer 32 is connected to the secondary side of the current transformer 31. By this constitution, the locating apparatus which prevents a magnetic saturation phenomenon of the current transformer 31 and which precisely locates the failure point is obtained.
COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：为了提供用于精确定位故障点的电流差动系统的故障点定位装置，使得由故障点定位装置的定位部分两侧的电流互感器是通过组合光电流互感器与芯型电流互感器组合。解决方案：故障点定位装置以这样的方式构成，使得电流互感器布置在用于定位电路的故障点的定位部分的两侧，即电流互感器的一侧的电流互感器基于由各个电流互感器检测到的电流差异来定位故障点的电流差动系统的定位装置被形成为空心电流互感器，另一侧的电流互感器被形成为芯 - 型电流互感器31，并且辅助空气芯电流互感器32连接到电流互感器31的次级侧。通过这种结构，能够防止电流互感器31的磁饱和现象并且精确定位的定位装置故障点得到。版权所有（C）2004，JPO

8. 发明专利

JPH07306229A CURRENT MEASURING INSTRUMENT 失效
公开(公告)号：JPH07306229A
公开(公告)日：1995-11-21
申请号：JP9985094
申请日：1994-05-13
申请人： MITSUBISHI ELECTRIC CORP
发明人： OGURA SHINZO , ITO KEITA
IPC分类号： G01R15/20 , G01R19/00 , H01F38/28
摘要： PURPOSE:To enhance the reliability by enhancing the winding density in the vicinity of the lead-out part of winding without sacrifice of mechanical strength in order to compensate for the measurement error of a current measuring instrument. CONSTITUTION:A plate 8 for holding a core 1 and a winding 3 integrally is disposed on the side face of the winding 3 and a spacer 7 having the same thickness as additional coils 5a, 5b is inserted between the winding 3 and the plate 8 where the additional coil 5a, 5b is not present.

9. 发明专利

JP2014082912A Gas insulated switchgear 有权
标题翻译：气体绝缘开关
公开(公告)号：JP2014082912A
公开(公告)日：2014-05-08
申请号：JP2012231123
申请日：2012-10-18
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： MATSUMOTO MITSUO , ITO KEITA
IPC分类号： H02B13/02
摘要： PROBLEM TO BE SOLVED: To provide a gas insulated switchgear having a plurality of disconnectors on a ring bus which satisfies equipment performance prescribed by standards by avoiding opening the disconnectors for currents exceeding a duty to open.SOLUTION: The gas insulated switchgear includes: a ring bus 14; power supply side feeders 10a, 10b; load side feeders 17a, 17b; disconnectors 15a-15d; current transformers 16a-16d for measuring currents flowing through the disconnectors 15a-15d, respectively; and interlock control sections 30a-30d disposed in correspondence with the disconnectors 15a-15d to determine whether or not current measurement values acquired from the current transformers 16a-16d are within current values that the disconnectors 15a-15 can break which are prescribed by standards, and if the current measurement values are higher than the current values that the disconnectors 15a-15d can break, interlock opening operations of the disconnectors 15a-15d and inhibit the opening operations.
摘要翻译：要解决的问题：提供一种在环形母线上具有多个隔离开关的气体绝缘开关装置，其满足标准规定的设备性能，避免为超过开启负荷的电流而断开隔离开关。解决方案：气体绝缘开关装置包括：环公车14 电源侧馈线10a，10b; 负载侧进料器17a，17b; 隔离开关15a-15d; 分别用于测量流过断路器15a-15d的电流的电流互感器16a-16d; 以及与断路器15a-15d对应地设置的互锁控制部30a〜30d，判定从电流互感器16a〜16d获取的电流测量值是否在标准规定的断路器15a-15断开的电流值内，如果当前的测量值高于断路器15a-15d可能断开的电流值，则隔离开关15a-15d的互锁打开操作并且禁止打开操作。

10. 发明专利

JP2006337357A Voltage detection system 审中-公开
标题翻译：电压检测系统
公开(公告)号：JP2006337357A
公开(公告)日：2006-12-14
申请号：JP2006120628
申请日：2006-04-25
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： MIYASHITA MAKOTO , INAMI KIYOSHI , HORINOUCHI YUSAKU , HANEUMA HIROYUKI , ITO KEITA , ISHIGAKI KAZUMI , ITO FUMIO
IPC分类号： G01R15/06 , H02B13/02
CPC分类号： H02B13/0356
摘要： PROBLEM TO BE SOLVED: To reduce resonance in a closed circuit, including a capacitance between an intermediate electrode and a grounded metallic tank and a voltage detection capacitor, and to prevent the occurrence of overvoltage at various parts of a closed circuit.
SOLUTION: Divided voltage by a first capacitor, comprising the intermediate electrode 3 which is concentrically formed in a tubular shape in the grounded metallic tank 1, separated by a distance from a bus 2 by a predetermined distance and the grounded metallic tank 1 and a voltage detection second capacitor 10 is applied to a voltage sensor 12, thereby detecting the voltage of the bus 2. A resistor 21 is installed in the closed circuit (1) that includes the capacitance between the intermediate electrode 3 and the grounded metallic tank 1, and the second capacitor 10, thereby reducing the resonance phenomenon in the closed circuit (1).
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：解决的问题：为了减少包括中间电极和接地金属容器和电压检测电容器之间的电容的闭合电路中的谐振，并且防止在闭路电路的各个部分发生过电压。解决方案：通过第一电容器分压，包括在接地金属容器1中同心地形成为管状的中间电极3，与总线2隔开预定距离的距离和接地的金属罐1 并且电压检测用第二电容器10被施加到电压传感器12，从而检测总线2的电压。电阻器21安装在闭合电路（1）中，该闭路电路包括中间电极3和接地的金属罐之间的电容 1和第二电容器10，从而减小闭路（1）中的谐振现象。版权所有（C）2007，JPO＆INPIT

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