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    • 1. 发明专利
    • Composite membrane for oil-immersed transformer conservator
    • 用于油压变压器保护器的复合膜
    • JP2006237531A
    • 2006-09-07
    • JP2005053961
    • 2005-02-28
    • Tokyo Electric Power Co Inc:The東京電力株式会社
    • KOIKE AKIHIROTATSUOKA TERUHISATAKAGI YOSHIOKOBAYASHI TAKAYUKIYAJIMA KOJITSUKAO SHIGEYUKI
    • H01F27/14
    • PROBLEM TO BE SOLVED: To provide a composite membrane for an oil-immersed transformer conservator capable of obtaining a high resistance to air permeability and including excellent followingness against deformation.
      SOLUTION: The composite membrane 1 for a conservator used for an oil-immersed transformer is configured by adhering inner layers 3A, 3B made of nylon cloth to both sides of an intermediate layer 2 made of an EVOH (Ethylene-Vinyl Alcohol Copolymer) with excellent gas barrier performance or the like, and by providing outer layers 4A, 4B made of nytril rubber to respective surfaces of the inner layers 3A, 3B, and the intermediate layer 2 has an oxygen permeability of 3.5 cm
      3 /(m
      2 24h atm) or below at room temperature (20 to 25°C) and a humidity of 0%, and 30cm
      3 /(m
      2 24h atm) at a temperature of 50°C and a humidity of 0%.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:提供一种能够获得高耐透气性并且具有优异的抗变形性的油浸式变压器保护器用复合膜。 解决方案:用于油浸式变压器的储油器用复合膜1通过将由尼龙布制成的内层3A,3B粘合到由EVOH制成的中间层2的两侧(乙烯 - 乙烯醇共聚物 ),并且通过在内层3A,3B和中间层2的各个表面提供由nytril橡胶制成的外层4A,4B,氧透过度为3.5cm 3, / SP> /(m 2 24h atm)或室温(20〜25℃),湿度为0%,30cm 3 / SP> 2 24h atm),温度为50℃,湿度为0%。 版权所有(C)2006,JPO&NCIPI
    • 3. 发明专利
    • Method of diagnosing and suppressing electrostatic charge of oil-filled electrical apparatus
    • 油封电气装置诊断和抑制静电荷的方法
    • JP2005223104A
    • 2005-08-18
    • JP2004028721
    • 2004-02-05
    • Tm T & D KkTokyo Electric Power Co Inc:Theティーエム・ティーアンドディー株式会社東京電力株式会社
    • TSUCHIE MOTOOAMIMOTO TAKESHIOKABE NARIMITSUKOMASA MASANORIKOBAYASHI TAKAYUKITSUKAO SHIGEYUKI
    • H01F27/00H01F41/00
    • PROBLEM TO BE SOLVED: To diagnose electrostatic charge, by noticing a specified component included in insulation oil of an oil-filled electrical apparatus and grasping a product produced by oxidation of the specified component.
      SOLUTION: In the electrostatic charge diagnosis method of the oil-filled electrical apparatus, the degree of electrostatic charge for every substance in an environment, inside the oil-filled electric apparatus of sulfur compound existing in insulation oil and sulfur oxide formed by oxidation of sulfur compound, is investigated beforehand, and insulation oil with which the oil-filled electrical apparatus is filled up is extracted. Contents of sulfur compound which exist in extracted insulation oil and sulfur oxide are detected for each substance, and detected sulfur compound and sulfur oxide are set as index substances. Electrostatic charge properties are diagnosed by the contents, and the previously investigated degree of electrostatic charge of the index substance corresponding to the detected contents for every index substance.
      COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:通过注意含油电气设备的绝缘油中包含的指定部件并抓住由特定部件氧化产生的产品来诊断静电荷。

      解决方案:在充油电气设备的静电荷诊断方法中,在绝缘油和硫氧化物中存在的硫化合物的充油电气设备内的环境中的每种物质的静电荷的程度由 预先研究硫化合物的氧化,并且提取填充有充油电气设备的绝缘油。 检测每种物质中提取的绝缘油和硫氧化物中存在的硫化合物含量,检测出硫化合物和硫氧化物作为指标物质。 静电电荷性质由内容物和先前研究的指标物质的静电电荷量与每个指标物质的检测内容相对应。 版权所有(C)2005,JPO&NCIPI

    • 4. 发明专利
    • Internal diagnostic method of transformer
    • 变压器内部诊断方法
    • JP2010230479A
    • 2010-10-14
    • JP2009078241
    • 2009-03-27
    • Tokyo Electric Power Co Inc:The東京電力株式会社
    • IKEDA JIROOKUMO HIROMICHIKOBAYASHI TAKAYUKITSUKAO SHIGEYUKIETO JUN
    • G01R31/00H01F41/00
    • PROBLEM TO BE SOLVED: To provide an internal diagnostic method of a transformer, determining even a very small deformation of a winding in detail without internal overhaul of the transformer. SOLUTION: In the internal diagnostic method of a transformer, one of first and second windings of the transformer is short-grounded, a variable frequency voltage is applied to the opposite winding of the short-grounded winding, a current flowing through the winding is measured, an impedance is obtained by dividing the variable frequency voltage with the current, and the transformer is diagnosed on the basis of the impedance frequency characteristic as one of eccentricity between first and second windings, buckling distortion of second winding, combined condition of eccentricity and buckling distortion, axial direction displacement between first and second windings, and combined condition of buckling distortion and axial direction displacement. COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:为了提供变压器的内部诊断方法,在没有变压器的内部检修的情况下,甚至确定绕组的非常小的变形。

      解决方案:在变压器的内部诊断方法中,变压器的第一和第二绕组中的一个短路接地,对短接地绕组的相对绕组施加可变频率电压,流过 测量绕组,通过将可变频率电压与电流相除来获得阻抗,并且基于阻抗频率特性诊断变压器作为第一和第二绕组之间的偏心之一,第二绕组的屈曲失真,第二绕组的屈曲失真 偏心和屈曲变形,第一和第二绕组之间的轴向位移以及屈曲变形和轴向位移的组合条件。 版权所有(C)2011,JPO&INPIT

    • 6. 发明专利
    • Diagnostic method of internal fault of oil-filled electric equipment
    • 油封电气设备内部故障诊断方法
    • JP2008042130A
    • 2008-02-21
    • JP2006218304
    • 2006-08-10
    • Tokyo Electric Power Co Inc:The東京電力株式会社
    • ISHII TADASHIHIRANO TAKAYUKITSUKAO SHIGEYUKIKAGAWA HIROAKI
    • H01F27/00G01N30/88
    • PROBLEM TO BE SOLVED: To provide a diagnostic method of internal fault of oil-filled electric equipment, by which the fault in a main body of oil-filled electric equipment equipped with transformer main body insulation oil and selection switch room oil mutually separated with a rubber-like dividing membrane can be diagnosed in a simple way and also a release source of a low-boiling gas such as acetylene gas can be specified.
      SOLUTION: The diagnostic method includes processes of: determining whether acetylene gas and methyl vinyl acetylene gas permeate the rubber-like dividing membrane separating the transformer main body insulation oil and the selection switch room oil mutually; extracting specimen of the transformer main body insulation oil from the oil-filled electric equipment and detecting hydrocarbon gas component at least with the carbon number of 2 to 5 dissolved in the specimen oil; and specifying the release source of acetylene gas, based on the results of determining the presence or absence of permeating acetylene gas and methyl vinyl acetylene gas, and also based on the presence or absence of the detection of acetylene gas or methyl vinyl acetylene gas in the process of detecting hydrocarbon gas component.
      COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供充油电气设备内部故障的诊断方法,通过这种方法,装有变压器主体绝缘油和选择开关室油的充油电气设备主体的故障相互 可以以简单的方式诊断用橡胶状分隔膜分离,并且还可以规定诸如乙炔气体的低沸点气体的释放源。 解决方案:诊断方法包括:确定乙炔气和甲基乙烯基乙炔气是否相互渗透分离变压器主体绝缘油和选择开关室油的橡胶状分隔膜; 从充油电气设备中取出变压器主体绝缘油的试样,并至少检测溶解在试样油中的碳数为2〜5的烃类气体成分; 并基于确定渗透的乙炔气体和甲基乙烯基乙炔气体的存在或不存在的结果,并且还基于是否存在乙炔气体或甲基乙烯基乙炔气体的检测来确定乙炔气体的释放源 检测烃气成分的过程。 版权所有(C)2008,JPO&INPIT
    • 7. 发明专利
    • Method for controlling resistance value of water rheostat type neutral grounding resistor
    • 用于控制水电阻型中性接地电阻的电阻值的方法
    • JP2006242830A
    • 2006-09-14
    • JP2005060593
    • 2005-03-04
    • Tokyo Electric Power Co Inc:The東京電力株式会社
    • ICHIBA MIKIYUKITSUBOI TOSHIHIROARAI KAZUFUMITSUKAO SHIGEYUKITAKAGI YOSHIO
    • G01R27/02
    • PROBLEM TO BE SOLVED: To provide a method for controlling a resistance value of a water rheostat type neutral grounding resistor, which can control the resistance value in a charged state without the need for separation from a transmission grid, has no constraint for a measurement time, and can easily carry out the control even on site.
      SOLUTION: In the resistance value controlling method which controls a resistance quality of the water rheostat type neutral grounding resistor in its charged state, the electric conductivity of an internal solution taken from the above-mentioned resistor is measured in order to carry out the control by applying voltage or current across a pair of electrodes made of titanium, a titanium alloy, carbon or the like which are immersed in the solution.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:提供一种用于控制水变阻器型中性点接地电阻器的电阻值的方法,其可以在不需要与传输电网分离的情况下控制带电状态下的电阻值,但是对于 测量时间,即使在现场也可以轻松进行控制。 解决方案:在电阻值控制方法中,控制在其充电状态下的水变阻器型中性点接地电阻器的电阻质量,测量从上述电阻器获取的内部溶液的电导率,以便执行 通过在由钛,钛合金,碳等制成的一对电极上施加电压或电流进行控制,这些电极浸入溶液中。 版权所有(C)2006,JPO&NCIPI
    • 10. 发明专利
    • Charged potential operation device and method
    • 充电潜在操作装置和方法
    • JP2010145261A
    • 2010-07-01
    • JP2008323194
    • 2008-12-19
    • Tokyo Electric Power Co Inc:The東京電力株式会社
    • KOBAYASHI TAKAYUKITSUKAO SHIGEYUKIETO JUN
    • G01R29/24
    • PROBLEM TO BE SOLVED: To provide a charged potential operation device acquiring a charged potential in consideration of the degree of charging and charge relaxation without collecting a PB (Press Board) of a transformer which is an evaluation object. SOLUTION: This operation device 13 finds an increase rate α1 of a charge generation amount caused by oxidation deterioration of a PB from an α1 characteristic curve stored in a storage device 11; finds an increase rate β1 of a PB resistance change caused by oxidation deterioration of the PB from a β1 characteristic curve; finds a sulfur compound amount in the PB from a conversion characteristic curve stored in the storage device 11; finds an increase rate α2 of the charge generation amount caused by adsorption of an in-oil deterioration component from an α2 characteristic curve stored in the storage device based on the obtained sulfur compound amount in the PB; finds an increase rate β2 of a PB resistance change caused by adsorption of the in-oil deterioration component from a β2 characteristic curve; assuming that the charged potential of a new PB input from an input device 11 is V0, and that a coefficient is k, finds the charged potential V of the transformer which is the evaluation object as V=V0×k×α1×α2×β1×β2; and outputs the result from an output device 14. COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:提供一种充电电位操作装置,在不收集作为评估对象的变压器的PB(压板)的情况下,考虑充电程度和充电松弛度来获取充电电位。 解决方案:该操作装置13从存储在存储装置11中的α1特性曲线中求出由PB的氧化劣化引起的电荷产生量的增加率α1; 发现由β1特性曲线的PB的氧化劣化引起的PB电阻变化的增加率β1; 从存储在存储装置11中的转换特性曲线求出PB中的硫化合物量; 基于获得的PB中的硫化合物量,求出从存储在存储装置中的α2特性曲线吸收油中劣化成分引起的电荷产生量的增加率α2; 发现由β2特性曲线吸收油中劣化成分引起的PB电阻变化的增加率β2; 假定来自输入装置11的新的PB输入的充电电位为V0,系数为k,则将作为评价对象的变压器的充电电位V求出为V = V0×k×α1×α2×β1 ×β2; 并从输出设备14输出结果。版权所有(C)2010,JPO&INPIT