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11. 发明专利

JP2004354093A Deterioration diagnostic method of power cable 有权
公开(公告)号：JP2004354093A
公开(公告)日：2004-12-16
申请号：JP2003149464
申请日：2003-05-27
申请人： Furukawa Electric Co Ltd:The , Tokyo Electric Power Co Inc:The , 古河電気工業株式会社 , 東京電力株式会社
发明人： YAGI YUKIHIRO , ISHII NOBORU , TSUJIMOTO TOMIYUKI , NAKADE MASAHIKO
IPC分类号： G01R31/12
摘要： PROBLEM TO BE SOLVED: To provide a deterioration diagnostic method of power cable, capable of performing a precise deterioration diagnosis of a power cable by deriving and removing a third harmonic component in a loss current which appears by the influence of a third harmonic voltage included in an AC voltage applied to the power cable.
SOLUTION: This deterioration diagnostic method of the power cable comprises applying the AC voltage to the power cable to extract the loss current from the current carried in an insulator, and performing the deterioration of diagnosis of the power cable by use of the third harmonic component included in the loss current. In this method, paying attention, as the AC voltage to be applied to the power cable, to a first voltage V1 having a main frequency f and a superposed voltage V3 in which a second voltage V2 having a frequency 3f three times the frequency f is superposed on the first voltage V1, a third harmonic component I
3n included in the loss current, which appears by the influence of the third harmonic voltage V
3n included in the first voltage V1, and a third harmonic component I
3m0 included in the loss current is corrected, whereby the deterioration diagnosis of the power cable is performed.
COPYRIGHT: (C)2005,JPO&NCIPI

12. 发明专利

JP2004309277A Diagnostic method of cable insulation deterioration service life 有权
标题翻译：电缆绝缘检测服务生命诊断方法
公开(公告)号：JP2004309277A
公开(公告)日：2004-11-04
申请号：JP2003102361
申请日：2003-04-07
申请人： Tokyo Densetsu Service Kk , Tokyo Electric Power Co Inc:The , 東京電力株式会社 , 東京電設サービス株式会社
发明人： HATANAKA MASAKI , NAKADE MASAHIKO , HIROSE TAKASHI , SUGIMOTO OSAMU , NAMIKI YUKIHIKO
IPC分类号： G01N17/00 , G01N21/01 , G01N21/35 , G01N21/3563 , G01N21/359
摘要： PROBLEM TO BE SOLVED: To provide a diagnostic method of a cable insulation deterioration service life capable of confirming the deterioration degree of an insulated cable coated with a polyolefin until the end of the service life, performing deterioration diagnosis for diagnosing the progression degree of deterioration with age and service life diagnosis for predicting the deterioration service life, highly accurately, simply and easily. SOLUTION: This method for performing insulation deterioration service life diagnosis of the cable by measuring an infrared absorption spectrum of the polyolefin coating the cable is an insulation deterioration service life diagnostic method for determining the absorbance ratio between the carbonyl group absorbance of the polyolefin and the standard spectrum absorbance, and diagnosing the deterioration degree from the change with age. Similarly, the method is also the insulation deterioration service life diagnostic method for estimating the remaining service life of the cable from the end of the service life determined beforehand. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了提供电缆绝缘劣化使用寿命的诊断方法，其能够确认涂覆有聚烯烃的绝缘电缆的使用寿命结束时的劣化程度，进行用于诊断进展程度的劣化诊断随着年龄和使用寿命的恶化，预测使用寿命恶化，高度准确，简单易行。解决方案：通过测量涂覆电缆的聚烯烃的红外吸收光谱来进行电缆的绝缘劣化使用寿命诊断的方法是用于确定聚烯烃的羰基吸光度之间的吸光度比的绝缘劣化使用寿命诊断方法和标准光谱吸光度，并根据年龄变化诊断恶化程度。类似地，该方法也是从预先确定的使用寿命结束时估计电缆的剩余使用寿命的绝缘劣化使用寿命诊断方法。版权所有（C）2005，JPO＆NCIPI

13. 发明专利

JP2012211298A Flame-retardant resin composition, molded article using the same, and fire prevention tape 审中-公开
标题翻译：阻燃树脂组合物，使用其的成型品和防火胶带
公开(公告)号：JP2012211298A
公开(公告)日：2012-11-01
申请号：JP2011203561
申请日：2011-09-16
申请人： Hitachi Cable Ltd , Tokyo Electric Power Co Inc:The , 日立電線株式会社 , 東京電力株式会社
发明人： SETOGAWA AKIRA , YAMAMOTO YASUAKI , NAKADE MASAHIKO , UMEKAWA KENJI
IPC分类号： C08L23/28 , C08K3/22 , C08K3/24 , C08K3/32 , C08K3/38 , C08K5/14 , H01B3/00 , H01B3/44 , H01B17/56
摘要： PROBLEM TO BE SOLVED: To provide a flame-retardant resin composition having flame retardancy, high breaking elongation, and longer service lifetime rather than that of a conventional composition, and to provide a molded article using the same and a fire prevention tape.SOLUTION: The flame-retardant resin composition comprises 50 to 200 pts.mass of a metal hydroxide and 50 to 200 pts.mass of a frit to 100 pts.mass of a chlorinated polyethylene, and the composition is crosslinked with peroxide.
摘要翻译：待解决的问题：提供具有阻燃性，高断裂伸长率和更长使用寿命而不是传统组合物的阻燃树脂组合物，并提供使用该阻燃性树脂组合物的模制品和防火带。解决方案：阻燃树脂组合物包含50-200ppm的金属氢氧化物和50-200ppm的玻璃料至100磅的氯化聚乙烯，该组合物与过氧化物交联。版权所有（C）2013，JPO＆INPIT

14. 发明专利

JP2012172052A Fire-retardant composition, and molded article 有权
标题翻译：防火组合物和模塑制品
公开(公告)号：JP2012172052A
公开(公告)日：2012-09-10
申请号：JP2011035026
申请日：2011-02-21
申请人： Mitsubishi Cable Ind Ltd , Tokyo Electric Power Co Inc:The , 三菱電線工業株式会社 , 東京電力株式会社
发明人： NAKADE MASAHIKO , UMEKAWA KENJI , FUJII MASANORI , MURAKAMI TAKESHI , HONJO HIROMASA , ZUSHI TOSHIHIRO
IPC分类号： C08L23/28 , C08K3/04 , C08K5/053 , C08K5/12 , C08K5/3492 , C08K9/10 , C08L15/02 , C08L67/02 , C09K21/02 , C09K21/12
摘要： PROBLEM TO BE SOLVED: To provide a fire-retardant composition excellent in flame resistance, heat resistance, and mechanical properties and having prolonged service life, and to provide a molded article using the composition.SOLUTION: The fire-retardant composition comprises (A) a chlorinated polyethylene, (B) a halogen containing elastomer, (C) a micro capsulated nitrogen containing polyphosphate, (D) a polyhydric alcohol, (E) a foaming agent, (F) a plasticizer containing a polyester plasticizer and (G) an expandable graphite, wherein the content of (F) the plasticizer is 10-25 pts.wt. per 100 pts.wt. of (A) the chlorinated polyethylene.
摘要翻译：要解决的问题：提供阻燃性，耐热性和机械性能优异并且具有延长的使用寿命的阻燃组合物，并提供使用该组合物的模塑制品。阻燃组合物包含（A）氯化聚乙烯，（B）含卤素的弹性体，（C）含微孔的含多磷酸的氮，（D）多元醇，（E）发泡剂，（F）含有聚酯增塑剂和（G）可膨胀石墨的增塑剂，其中（F）增塑剂的含量为10-25重量份。每100 pts.wt （A）氯化聚乙烯。版权所有（C）2012，JPO＆INPIT

15. 发明专利

JP2011217475A Power cable connecting part 有权
标题翻译：电力电缆连接部分
公开(公告)号：JP2011217475A
公开(公告)日：2011-10-27
申请号：JP2010081744
申请日：2010-03-31
申请人： J-Power Systems Corp , Tokyo Electric Power Co Inc:The , Viscas Corp , 東京電力株式会社 , 株式会社ジェイ・パワーシステムズ , 株式会社ビスキャス
发明人： HYODO TOSHIAKI , NAKADE MASAHIKO , UMEKAWA KENJI , SUKEGAWA TAKUYA , KOBAYASHI SHOZO , TORAI YASUO , NIINOBE HIROSHI
IPC分类号： H02G15/08 , H02G9/00
摘要： PROBLEM TO BE SOLVED: To provide a power cable connecting part reduced in a risk that fixing metal fittings for fixing the power cable connecting part may be broken at a ground fault.SOLUTION: In the power cable connecting part, protection cases 14a, 14b which cover a body 13 of the power cable connecting part are gripped by the fixing metal fittings 4, a break position control groove 31 which controls a position in the circumferential direction in which the protection cases are broken at a rise of the internal pressure of the protection cases is formed in the axial direction of the protection cases at a part in the circumferential direction of the protection cases, the protection cases 14a, 14b are gripped by the fixing metal fittings 4 in a position outside the axial direction rather than an end position S of an external semiconductor layer 1c of a power cable in the axial direction.
摘要翻译：要解决的问题：为了提供一种减少电力电缆连接部件的风险，固定用于固定电力电缆连接部件的金属配件可能在接地故障中断开。解决方案：在电力电缆连接部分中，保护壳体14a，14b 覆盖动力电缆连接部件的主体13被固定金属配件4夹紧;断开位置控制槽31，其在保护壳体的内部压力升高时控制保护壳体在其周向方向上的位置在保护壳体的圆周方向的一部分，在保护壳体的轴向形成有壳体，保护壳体14a，14b被固定用金属配件4夹持在轴向以外的位置而不是端部位置S 电力电缆的外部半导体层1c沿轴向。

16. 发明专利

JP2008224217A Deterioration diagnostic method of power cable 有权
标题翻译：电力电缆的诊断诊断方法
公开(公告)号：JP2008224217A
公开(公告)日：2008-09-25
申请号：JP2007058338
申请日：2007-03-08
申请人： Tokyo Electric Power Co Inc:The , 東京電力株式会社
发明人： FUJITA MANABU , NAKADE MASAHIKO
IPC分类号： G01R31/12 , G01R31/02
摘要： PROBLEM TO BE SOLVED: To provide a deterioration diagnostic method of a power cable, which diagnose the deterioration of the power cable by applying such a sealed type device of a gas insulated switchgear or the like as a power charging terminal using a loss current method, capable of precisely diagnosing the deterioration of the power cable dispensing with sealing and unsealing working of the sealed device.
SOLUTION: The ground side of a ES terminal part 21 in a gas insulated switchgear 1 is connected with a diagnostic device 3, and is connected with a dummy cable 5. By applying a voltage from the diagnostic device 3 to the power cable 1 through the ES terminal part 21 after closing the ES terminal part 21, the first deterioration signal is measured. Then, by applying a voltage to the ES terminal part 21 and a dummy cable 5 after opening the ES terminal part 21, the second deterioration signal is measured. Using the signal obtained by reducing the second deterioration signal from the first deterioration signal, the deterioration of the power cable 1 is diagnosed.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了提供电力电缆的劣化诊断方法，其通过将这样的气体绝缘开关装置等的密封型装置作为充电端子使用损耗来诊断电力电缆的劣化目前的方法，能够精确地诊断密封装置的密封和开封工作中的电力电缆分配的劣化。解决方案：气体绝缘开关设备1中的ES端子部分21的接地侧与诊断装置3连接，并与虚拟电缆5连接。通过将来自诊断装置3的电压施加到电力电缆在ES端子部分21闭合之后，通过ES端子部分21测量第一劣化信号。然后，通过在ES端子部21打开之后向ES端子部21和虚拟电缆5施加电压，测量第二劣化信号。使用通过从第一劣化信号减少第二劣化信号而获得的信号，诊断电力电缆1的劣化。版权所有（C）2008，JPO＆INPIT

17. 发明专利

JP2006038631A Cable conductor temperature estimation method in consideration of cooling effect, cable conductor temperature estimation system, and cable conductor temperature estimation program 有权
标题翻译：考虑冷却效应的电缆导体温度估算方法，电缆导体温度估算系统和电缆导体温度估算方案
公开(公告)号：JP2006038631A
公开(公告)日：2006-02-09
申请号：JP2004218894
申请日：2004-07-27
申请人： Japan Research Institute Ltd , Tokyo Electric Power Co Inc:The , 東京電力株式会社 , 株式会社日本総合研究所
发明人： NAKADE MASAHIKO , SAITO TAKASHI , KANO TOSHIYA , ISHIKAWA TOMONAO
IPC分类号： G01K7/00 , G01K17/08 , G06F17/50 , H02G9/00
摘要： PROBLEM TO BE SOLVED: To provide a system capable of estimating the change of a cable conductor temperature by a finite element method, in consideration of an effect by a cooling water channel when the cooling water channel is provided in parallel with a power cable buried underground. SOLUTION: In this cable conductor temperature estimation method, a plurality of analysis faces crossing the cable buried underground and the cooling water channel are set, and while performing transfer treatment of a cooling water temperature from the upstream side to the downstream side of the cooling water channel between the analysis faces, temperature analysis is performed in each fixed period by applying the finite element method based on a heat conduction equation to the analysis faces, and thereby the change of the cable conductor temperature is simulated by reflecting the state where the cooling water absorbs ambient heat from a prescribed temperature at the supply time and simultaneously cools the cable. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了提供一种能够通过有限元法估计电缆导体温度的变化的系统，考虑到当冷却水通道与电源并联设置时由冷却水通道的影响电缆埋地下。解决方案：在该电缆导体温度推定方法中，设置与埋在地下的电缆和冷却水通道交叉的多个分析面，在从上游侧到下游侧进行冷却水温度的转移处理的同时，分析面之间的冷却水通道，通过将基于热传导方程的有限元法应用于分析面进行每个固定时段的温度分析，由此通过反映电缆导体温度的变化来模拟电缆导体温度的变化，冷却水在供应时间从规定温度吸收环境热量，同时冷却电缆。版权所有（C）2006，JPO＆NCIPI

18. 发明专利

JP2004361293A Deterioration diagnostic method of power cable 有权
公开(公告)号：JP2004361293A
公开(公告)日：2004-12-24
申请号：JP2003161269
申请日：2003-06-05
申请人： Furukawa Electric Co Ltd:The , Tokyo Electric Power Co Inc:The , 古河電気工業株式会社 , 東京電力株式会社
发明人： YAGI YUKIHIRO , ISHII NOBORU , TSUJIMOTO TOMIYUKI , NAKADE MASAHIKO
IPC分类号： G01R31/12 , G01R31/00
摘要： PROBLEM TO BE SOLVED: To provide the deterioration diagnostic method of a power cable for remarkably reducing labor and a cost accompanying deterioration diagnosis by dispensing with unsealing and sealing working of a closed opening and closing device when performing deterioration diagnosis of the power cable.
SOLUTION: In the deterioration diagnostic method of the power cable 10, a terminal 12 of the power cable 10 and a mechanism ground 24 connected to it are provided in the inside of an outside casing 16 of the closed opening and closing device 14. The ground side of the mechanism ground 24 taken out to the outside in the state insulated electrically from the outside casing 16 is separated from ground potential 28, the ground side and a test voltage generation device 32 are connected to each other, test voltage is applied on a conductor of the power cable 10 through the mechanism ground 24, and the deterioration state of the power cable 10 is diagnosed by measuring a deterioration signal generated from the power cable 10.
COPYRIGHT: (C)2005,JPO&NCIPI

19. 发明专利

JP2004112964A Method for estimating cable conductor temperature, conductor temperature estimating system, and recording medium for conductor temperature estimation 有权
公开(公告)号：JP2004112964A
公开(公告)日：2004-04-08
申请号：JP2002274624
申请日：2002-09-20
申请人： Japan Research Institute Ltd , Tokyo Electric Power Co Inc:The , 東京電力株式会社 , 株式会社日本総合研究所
发明人： NAKADE MASAHIKO , SAITO TAKASHI , KANO TOSHIYA , ISHIKAWA TOMONAO
IPC分类号： H02G1/00
摘要： PROBLEM TO BE SOLVED: To estimate change in the conductor temperature of a power cable buried underground with accuracy by a finite element method. SOLUTION: A system is constituted so that a predetermined area, including a surface and a buried cable, is divided into finite elements. Then, the finite element method is applied to the divided models, and thereby the temperature of each part in the above area, including conductor temperature, is computed from moment to moment for a predetermined period of time. The heat balance on the earth surface is computed, using meteorological data for the area as the object of estimation, so that changes in the cable conductor temperature are estimated with accuracy. COPYRIGHT: (C)2004,JPO

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