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    • 1. 发明专利
    • Partial discharge detection sensor for gis, and insulation abnormality monitoring system using this
    • 用于地理信息系统的部分放电检测传感器,以及使用此绝缘不正常监测系统
    • JP2007232496A
    • 2007-09-13
    • JP2006052960
    • 2006-02-28
    • Mitsubishi Electric CorpTokyo Electric Power Co Inc:The三菱電機株式会社東京電力株式会社
    • TSURIMOTO TAKAOYOSHIMURA MANABUMUTO HIROTAKANISHIDA CHIEKOKAMEI MITSUHITOOKABE NARIMITSUKANEKO SHUHEI
    • G01R31/12
    • PROBLEM TO BE SOLVED: To provide a partial discharge detection sensor for GIS for sensitively detecting components from low frequency to high frequency of electromagnetic wave generated by partial discharge.
      SOLUTION: The partial discharge detection sensor for GIS stores a high voltage section on the center axis and detects partial discharge occurring in a metal vessel constituted by a plurality of tanks integrated via an insulating spacer. The partial discharge detection sensor for GIS has a first wire whose tip is electrostatically coupled to the outer peripheral surface of a flange of one of the tanks gripping the spacer, and a second wire whose tip is electrostatically coupled to the outer peripheral surface of a flange of the other of the tanks gripping the spacer. The partial discharge detection sensor detects potential difference between the flange of one tank and the flange of the other tank induced by electromagnetic wave occurring following the partial discharge, and detects the partial discharge by receiving the electromagnetic wave leaking from the spacer.
      COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:为了提供一种用于灵敏地检测从局部放电产生的电磁波的低频到高频的分量的用于GIS的局部放电检测传感器。 解决方案:用于GIS的局部放电检测传感器在中心轴上存储高压部分,并且检测在由经由绝缘间隔件集成的多个箱体构成的金属容器中发生的局部放电。 用于GIS的局部放电检测传感器具有第一导线,其尖端静电耦合到夹持间隔件的一个壳体的凸缘的外周表面,以及第二导线,其尖端静电耦合到凸缘的外周表面 的另一个坦克夹紧间隔件。 局部放电检测传感器检测一个罐的凸缘与由局部放电之后发生的电磁波引起的另一个罐的凸缘之间的电位差,并且通过接收从间隔件泄漏的电磁波来检测局部放电。 版权所有(C)2007,JPO&INPIT
    • 2. 发明专利
    • Method and apparatus for determining partial discharge
    • 用于确定部分放电的方法和装置
    • JP2006266820A
    • 2006-10-05
    • JP2005084305
    • 2005-03-23
    • Mitsubishi Electric CorpTokyo Electric Power Co Inc:The三菱電機株式会社東京電力株式会社
    • NISHIDA CHIEKOKAMEI MITSUHITOOKABE NARIMITSUKANEKO SHUHEIMUTO HIROTAKAYOSHIMURA MANABU
    • G01R31/12H02B13/065H02G5/06
    • G01R31/1254
    • PROBLEM TO BE SOLVED: To precisely determine the presence or absence of partial discharges which occur in a gas-insulated apparatus by excluding the effects of extraneous noise. SOLUTION: The gas-insulated apparatus is constituted by partitioning, by an insulation spacer 2, a cylindrical metal tank 1 in which insulation gas is sealed and supporting a central conductor 3 by the insulation spacer 2. In this method for determining the presence or absence of partial discharges which occur in the metal tank 1 of the gas-insulated apparatus, signals of a frequency band through which only TE11 mode can propagate are extracted by a TE11 detector 8 from electromagnetic-wave signals detected by electromagnetic-wave signal detectors 4 at a plurality of locations in the circumferential direction of an outer circumference of the insulation spacer 2. An intensity distribution of outer circumferential electromagnetic waves of the metal tank 1 is acquired by a detection device 10 on the basis of the intensity of extracted signals and circumferential measuring location information and compared with a distribution characteristic of the TE11 mode to determine the presence or absence of partial discharges by the determination device 11. COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:通过排除外来噪声的影响,精确地确定在气体绝缘设备中发生的局部放电的存在或不存在。 解决方案:气体绝缘设备由绝缘间隔件2分隔成绝缘气体被密封并由绝缘隔离物2支撑中心导体3的圆筒形金属罐1构成。在该方法中, 在气体绝缘设备的金属罐1中存在或不存在仅由TE11模式传播的频带的信号由TE11检测器8从电磁波信号检测的电磁波信号中提取出来 检测器4在绝缘隔离物2的外周的周向的多个位置处。金属罐1的外周电磁波的强度分布由检测装置10基于提取的信号的强度获取 和圆周测量位置信息,并与TE11模式的分布特性进行比较,以确定存在或 确定装置11没有部分放电。版权所有(C)2007,JPO&INPIT
    • 3. 发明专利
    • Slow leak detector
    • 慢速探测器
    • JP2006311756A
    • 2006-11-09
    • JP2005133767
    • 2005-05-02
    • Mitsubishi Electric Corp三菱電機株式会社
    • NISHIDA CHIEKOKAMEI MITSUHITO
    • H02B13/025G01M3/26H01H33/56
    • H02B13/0655
    • PROBLEM TO BE SOLVED: To provide a slow leak detector which detects a slow leak of gas filled in gas-insulated electrical equipment without being affected by an external environment and a structure in the gas-insulated electrical equipment, and in distinction from the slow leak from an abnormality caused by local heating. SOLUTION: In the slow leak detector, long tanks 1a are connected through spacers 1b, gas divisions are formed by each of the long tanks 1a and the spacers 1b, pressure vessels with SF 6 filled in each gas division are attached to the detector, and the slow leak of the SF 6 is detected by measuring a change in pressure of the SF 6 in the pressure vessels. Gas pressure sensors 3a, 3b are connected to monitor zones for each gas division, and a gas pressure sensor 3c is connected to the monitor zone where two gas divisions are continuously connected by piping 2. A signal processor 4 obtains a finite difference of the change in pressure between the gas pressure sensors 3a, 3b, 3c at the three monitor zones continuously connected, and judges existence or nonexistence of the slow leak from a change of the finite difference. COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:提供一种缓慢的泄漏检测器,其可以在不受外部环境和气体绝缘电气设备中的结构的影响的情况下检测填充在气体绝缘电气设备中的气体的缓慢泄漏,并且与 由局部加热导致的异常缓慢泄漏。 解决方案:在慢速泄漏检测器中,长槽1a通过隔板1b连接,每个长槽1a和间隔件1b形成气体分隔,填充有SF 6 的压力容器 每个气体分配器附接到检测器,并且通过测量压力容器中SF 6 的压力变化来检测SF 6 的缓慢泄漏。 气体压力传感器3a,3b连接到每个气体分割的监视区域,并且气体压力传感器3c连接到监测区域,其中两个气体分配通过管道2连续地连接。信号处理器4获得变化的有限差异 在连续连接的三个监视区上的气体压力传感器3a,3b,3c之间的压力,并且判断有限差的变化存在或不存在缓慢的泄漏。 版权所有(C)2007,JPO&INPIT
    • 4. 发明专利
    • Method and apparatus for diagnosis of partial discharge in gas insulated switchgear
    • 气体绝缘开关部分放电诊断方法及装置
    • JP2011033538A
    • 2011-02-17
    • JP2009181730
    • 2009-08-04
    • Mitsubishi Electric Corp三菱電機株式会社
    • YABE TATSUYAITO TAKASHIKAMEI MITSUHITO
    • G01R31/12H01H33/56H02B13/02H02B13/065H02G5/06
    • PROBLEM TO BE SOLVED: To provide a method and apparatus for diagnosis of partial discharge in a gas insulated switchgear, capable of easily establishing an algorithm for an automatic diagnosis without requiring a skill for a partial discharge diagnosis. SOLUTION: In the gas insulated switchgear, a central conductor 3 is accommodated in metal containers 1, 2 filled with an insulating gas. A sensor 6 is used for measuring an electromagnetic wave generated by a partial discharge. An application voltage applied to the central conductor 3 is measured by a voltage divider 9. An electromagnetic wave signal is output from the sensor 6 and input to a computer 11 through a signal amplifier 7 and an A/D converter 8. An application voltage signal is output from the voltage divider 9 and input to the computer 11 through an A/D converter 10. An application phase-signal strength-generation frequency distribution (a discharge map) of a partial discharge signal detected for a fixed period is created. A region including a cluster of the discharge signals is defined in the discharge map. When the generation frequency is considered as the mass, a barycenter of the region is calculated. The partial discharge is diagnosed by the barycenter value. COPYRIGHT: (C)2011,JPO&INPIT
    • 解决的问题:提供一种用于诊断气体绝缘开关装置中的局部放电的方法和装置,能够容易地建立用于自动诊断的算法,而不需要局部放电诊断的技能。 解决方案:在气体绝缘开关设备中,中心导体3容纳在填充绝缘气体的金属容器1,2中。 传感器6用于测量由局部放电产生的电磁波。 施加到中心导体3的施加电压由分压器9测量。电磁波信号从传感器6输出,并通过信号放大器7和A / D转换器8输入到计算机11.应用电压信号 从分压器9输出并通过A / D转换器10输入到计算机11.产生在固定周期内检测到的局部放电信号的施加相位信号强度产生频率分布(放电图)。 在放电图中定义包括放电信号簇的区域。 当生成频率被认为是质量时,计算该区域的重心。 局部放电由重心值诊断。 版权所有(C)2011,JPO&INPIT
    • 5. 发明专利
    • Gas leak visualizing device
    • 气体泄漏可视化装置
    • JP2006317366A
    • 2006-11-24
    • JP2005142089
    • 2005-05-16
    • Mitsubishi Electric Corp三菱電機株式会社
    • KAMEI MITSUHITONISHIDA CHIEKO
    • G01M3/38G01N21/35G01N21/3504G01N21/3581G01N21/61
    • PROBLEM TO BE SOLVED: To provide a gas leak visualizing device without danger on the human body capable of detecting gas leak and pinpointing positions of gas leak, in simple composition and easy handling. SOLUTION: The gas leak visualizing device is equipped with a far-infrared source 2 radiating the far-infrared ray including far-infrared ray of the wavelength of 10.6 μm, a far-infrared filter 3 receiving the far-infrared ray 10 radiated from the far-infrared source 2 through a space to transmit only the far-infrared ray of the wavelength of 10.6 μm, a far-infrared photoelectric element 4, pairing with the far-infrared filter 3, detecting the far-infrared ray transmitted through the far-infrared filter 3, and a measuring probe 1 with a processing/display unit 5 converting the output from the far-infrared photoelectric element 4 to screen-displayed signals to display on a screen, while the measuring probe 1 consists of the far-infrared filter 3 and the far-infrared photoelectric element 4 detecting the SF 6 gas 20 arrived at the space and the processing/display unit 5 displaying the detected output from the far-infrared photoelectric element 4. COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:为了提供一种气体泄漏可视化装置,在构成简单,易于处理的情况下,对人体无危害,能够检测到气体泄漏和精确定位的气体泄漏位置。 解决方案:气体泄漏可视化装置配备有远红外线源2,其辐射包括10.6μm波长的远红外线的远红外线,接收远红外线10的远红外线滤波器3 从远红外光源2通过空间辐射,仅透射10.6μm的波长的远红外线,与远红外线滤光器3配对的远红外光电元件4,检测发射的远红外线 通过远红外线滤光器3和测量探针1,其具有将远红外光电元件4的输出转换为屏幕显示信号的处理/显示单元5,以在屏幕上显示,而测量探头1由 远红外线滤光器3和检测SF气体20的远红外光电元件4到达空间,处理/显示单元5显示来自远红外光电元件4的检测输出。 版权所有(C)2007,JPO&INPI Ť
    • 6. 发明专利
    • Wear detection equipment for circuit breaker
    • 电路断路器的检测设备
    • JP2003281975A
    • 2003-10-03
    • JP2002079911
    • 2002-03-22
    • Mitsubishi Electric Corp三菱電機株式会社
    • UEDA KOJIKAMEI MITSUHITO
    • H01H33/00H01H1/00H01H9/54
    • H01H1/0015
    • PROBLEM TO BE SOLVED: To obtain a wear detection equipment for a circuit breaker which can precisely detect a wear amount of an interrupting terminal by an operation of the circuit breaker with a simple structure.
      SOLUTION: In the circuit breaker built in a gas insulating electric equipment, the circuit breaker is equipped with an interrupting operation detector 12 to detect the operation of a circuit breaker 1 and an interrupting current detector 11 to detect an interrupting current value of the circuit breaker 1. When the circuit breaker 1 detected by the interrupting operation detector 12 is in operation, the interrupting current value detected by the interrupting current detector 11 is processed to calculate wear amount of the interrupting terminal. The wear amount of this circuit breaker 1 for every interrupting operation is cumulatively processed and an interrupting current monitoring device 13a is provided to obtain cumulative wear amount.
      COPYRIGHT: (C)2004,JPO
    • 要解决的问题:获得能够通过简单结构的断路器的操作精确地检测中断端子的磨损量的断路器的磨损检测设备。 解决方案:在内置气体绝缘电气设备的断路器中,断路器配备有中断操作检测器12,以检测断路器1的操作和中断电流检测器11,以检测断路电流值 断路器1.当由中断操作检测器12检测到的断路器1处于工作状态时,处理由中断电流检测器11检测到的中断电流值,以计算中断端子的磨损量。 每次中断操作的断路器1的磨损量被累积处理,并且提供中断电流监测装置13a以获得累积磨损量。 版权所有(C)2004,JPO
    • 7. 发明专利
    • Rust detecting device and method
    • RUST检测装置和方法
    • JP2009287931A
    • 2009-12-10
    • JP2008137620
    • 2008-05-27
    • Mitsubishi Electric Corp三菱電機株式会社
    • HORI JUNJINISHIZAWA HIROSHINISHIURA RYUICHIHIRAI TAKASHISHINDOI MASARUKAMEI MITSUHITONISHIDA CHIEKO
    • G01N27/72
    • PROBLEM TO BE SOLVED: To provide a rust detecting device and method for detecting the rust occurrence of an inspecting object non-destructively at high sensitivity.
      SOLUTION: This rust detecting device comprises: an exciting coil 11 for supplying a magnetic field to the inspecting object as a magnetic substance; a detecting coil 21 constituting a first magnetic circuit passing the inspecting object together with the exciting coil 11; and a detecting coil 22 constituting a second magnetic circuit passing the inspecting object together with the exciting coil 11. The detecting coils 21 and 22 are interconnected in series so as to offset the magnetic field component of the same phase, and output, as a differential signal, magnetic resistance variation resulting from the rust occurrence of the inspecting object.
      COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:提供一种以高灵敏度非破坏性地检测检查对象的锈蚀发生的锈蚀检测装置和方法。 解决方案:该防锈检测装置包括:用于向作为磁性物质的检查对象提供磁场的励磁线圈11; 构成与励磁线圈11一起通过检查对象物的第一磁路的检测线圈21; 以及构成与激励线圈11一起通过检查对象的第二磁路的检测线圈22.检测线圈21和22串联互连以便抵消相同相位的磁场分量,并作为差分输出 由于检查对象的锈蚀发生而产生的信号,磁阻变化。 版权所有(C)2010,JPO&INPIT
    • 8. 发明专利
    • Accident-point standardizing device of gas insulation power apparatus
    • 气体绝缘电力设备事故点标准化装置
    • JP2009250847A
    • 2009-10-29
    • JP2008100843
    • 2008-04-08
    • Mitsubishi Electric Corp三菱電機株式会社
    • NISHIDA CHIEKOKAMEI MITSUHITO
    • G01R31/08H02B3/00H02B13/025H02B13/065
    • PROBLEM TO BE SOLVED: To provide an accident-point standardizing device of a gas insulation power apparatus that not only specifies a gas section which has been subjected to an accident and but also determines the detailed occurrence position in the gas section, the position of which it occurs, when an internal ground fault and short-circuit accident occur in a gas insulation power apparatus. SOLUTION: Two detectors 6a and 6b are arranged at a suitable interval in one gas section. A signal processor 7 specifies the accident occurring position in the gas section, based on the speed of pressure wave generated by arc by accident occurrence, the time difference between the timings, when detectors 6a and 6b detect a phenomenon caused by the accident occurrence, and the arrangement interval of the detectors. COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:为了提供一种气体绝缘动力装置的事故点标准化装置,其不仅指定已经发生事故的气体部分,而且确定气体部分中的详细发生位置, 在气体绝缘电力设备中发生内部接地故障和短路事故时,发生位置。 解决方案:两个检测器6a和6b以合适的间隔布置在一个气体部分中。 信号处理器7基于由事故发生的电弧产生的压力波的速度,当检测器6a和6b检测到由事故发生引起的现象时,定时之间的时间差,指定气体部分中的事故发生位置,以及 检测器的排列间隔。 版权所有(C)2010,JPO&INPIT
    • 9. 发明专利
    • Abnormality diagnostic system for equipment
    • 异常诊断系统的设备
    • JP2008293132A
    • 2008-12-04
    • JP2007135884
    • 2007-05-22
    • Mitsubishi Electric Corp三菱電機株式会社
    • KAMEI MITSUHITOITO TAKASHINISHIDA CHIEKO
    • G08C17/00G01D21/00H04Q9/00
    • PROBLEM TO BE SOLVED: To provide the abnormality diagnostic system for equipment for executing the operation of the abnormality diagnosis of equipment across a plurality of plants by one system regardless of the type or quantity of monitor object equipment. SOLUTION: This abnormality diagnostic system of equipment is provided with a plurality of sensor parts arranged in a plurality of equipment as the object of monitoring or its neighboring for generating a plurality of pieces of sensor information by sensing information related with the plurality of pieces of equipment; a temporary storage part arranged in the plurality of pieces of equipment or its neighboring for digitizing and temporarily storing the plurality of pieces of sensor information; a communication part arranged in the equipment or its neighboring for transmitting the plurality of pieces of temporarily stored sensor information; a mobile storage part installed so as to be movable for receiving and storing the plurality of pieces of sensor information transmitted from the temporary storage part; and an analysis part for diagnosing the abnormality of the equipment by fetching and analyzing the plurality of pieces of sensor information stored in the mobile storage part. COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供用于通过一个系统执行跨多个工厂的设备的异常诊断的操作的设备的异常诊断系统,而不管监视对象设备的类型或数量如何。 解决方案:设备的这种异常诊断系统设置有多个传感器部件,其布置在多个设备中作为监视对象或其相邻用于通过感测与多个传感器信息相关的信息来生成多个传感器信息 设备件; 临时存储部件,布置在所述多个设备或其相邻的设备中,用于数字化和临时存储所述多个传感器信息; 布置在所述设备或其相邻的用于发送所述多个临时存储的传感器信息的通信部件; 移动存储部件,安装成可移动,用于接收和存储从临时存储部件发送的多条传感器信息; 以及分析部件,用于通过取出和分析存储在移动存储部分中的多条传感器信息来诊断设备的异常。 版权所有(C)2009,JPO&INPIT
    • 10. 发明专利
    • Test gas accumulation type gas sensor
    • 测试气体积累型气体传感器
    • JP2008064492A
    • 2008-03-21
    • JP2006240167
    • 2006-09-05
    • Mitsubishi Electric Corp三菱電機株式会社
    • YAMAUCHI SHIROKAMEI MITSUHITONISHIDA CHIEKO
    • G01N27/12G01N27/04
    • PROBLEM TO BE SOLVED: To provide a test gas accumulation type gas sensor capable of measuring an accumulation amount of cracked gas.
      SOLUTION: This test gas accumulation type gas sensor 10 is constituted of a solid electrolyte 11, a detection electrode 12 installed on one side of the solid electrolyte 11, a counter electrode 13 installed on the other side of the solid electrolyte 11 oppositely to the detection electrode 12, a power source 14, a current detector 15, a connection wire 16, and a casing 17. The detection electrode 12 which is formed of a porous material including a conductive metal and an adsorbent, has thereby conductivity as an electrode and a function for adsorbing test gas and accumulating and holding it with the passage of time, and can measure a value determined by integrating a generation amount during a prescribed period of a detection object with time, namely, the accumulation amount, by measuring a change with time of an electric resistance between itself and the counter electrode 3.
      COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供一种能够测量裂化气体积聚量的试验气体积聚型气体传感器。 解决方案:该测试气体积聚型气体传感器10由固体电解质11,安装在固体电解质11的一侧的检测电极12,相反地安装在固体电解质11的另一侧的对电极13 检测电极12,电源14,电流检测器15,连接线16和壳体17.由包含导电金属和吸附剂的多孔材料形成的检测电极12具有导电性,作为 电极和用于吸附测试气体并随时间累积并保持的功能,并且可以测量通过在检测对象的规定时间段内积累产生量与时间(即,累积量)而确定的值,方法是通过测量 随着自身与对电极3之间的电阻随时间而变化。版权所有(C)2008,JPO&INPIT