专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JP5701631B2 漏れ電流抑制回路有权
标题翻译：漏电流抑制电路
公开(公告)号：JP5701631B2
公开(公告)日：2015-04-15
申请号：JP2011021736
申请日：2011-02-03
申请人：株式会社東芝 , 東芝エレベータ株式会社
发明人：津田純一 , 餅川宏 , 児山裕史
IPC分类号： H02M7/48 , H02H9/08 , H02M1/12

2. 发明专利

JP4892914B2 Charging current measuring method and charging current measurement program 有权
公开(公告)号：JP4892914B2
公开(公告)日：2012-03-07
申请号：JP2005287653
申请日：2005-09-30
申请人：東京電力株式会社
发明人：敏幸菅沼
IPC分类号： G01R31/02 , H02H9/08

3. 发明专利

JP2011015504A Method, device, and program for setting tap of arc-suppressing reactor 有权
标题翻译：用于设置电弧抑制反应器TAP的方法，装置和程序
公开(公告)号：JP2011015504A
公开(公告)日：2011-01-20
申请号：JP2009156198
申请日：2009-06-30
申请人： Central Res Inst Of Electric Power Ind , 財団法人電力中央研究所
发明人： ICHIKAWA MICHIHARU , OTAKA SATONARI , AIDA YUTAKA , SHINOHARA YOSUKE , MIYAKE KATSUYUKI
IPC分类号： H02H9/08 , H01F29/02
摘要： PROBLEM TO BE SOLVED: To provide a method for setting a tap of an arc-suppressing reactor wherein earth capacitance is easily and quickly measured in safety and this earth capacitance is utilized.SOLUTION: A zero-phase voltage or zero-phase current in a transmission system (intermediate voltage line 4) whose neutral point is grounded through an optional tap of an arc-suppressing reactor 7 is measured to obtain a zero-phase voltage waveform or a zero-phase current waveform. The frequency of this zero-phase voltage waveform or zero-phase current waveform is analyzed to detect a resonance frequency between the arc-suppressing reactor 7 and the earth capacitance C of the transmission system. The earth capacitance C is determined based on the detected resonance frequency and the self-inductance of the arc-suppressing reactor 7 and further a tap of the arc-suppressing reactor 7 is set based on the earth capacitance C.
摘要翻译：要解决的问题：提供一种设置电弧抑制电抗器的抽头的方法，其中容易且快速地测量接地电容，并且使用该接地电容。解决方案：在零电压或零相电流测量其中性点通过灭弧电抗器7的可选抽头接地的传输系统（中间电压线4），以获得零相电压波形或零相电流波形。分析该零相电压波形或零相电流波形的频率，以检测电弧抑制电抗器7与传输系统的接地电容C之间的谐振频率。基于检测到的谐振频率和电弧抑制电抗器7的自感来确定接地电容C，并且还基于接地电容C设定电弧抑制电抗器7的抽头。

4. 发明专利

JP2009183121A Distribution line compensating reactor system and distribution line compensating reactor setting method 有权
标题翻译：分布线补偿反应器系统和分布管线补偿反应器设定方法
公开(公告)号：JP2009183121A
公开(公告)日：2009-08-13
申请号：JP2008022177
申请日：2008-01-31
申请人： Chugoku Electric Power Co Inc:The , 中国電力株式会社
发明人： YAMADA KOJI
IPC分类号： H02H9/08
摘要： PROBLEM TO BE SOLVED: To provide a distribution line compensating reactor system in which an optimum amount of reactor can be inserted as much as possible with respect to a distributed reactor grounding method for substation installation by which current flowing through a capacitance of a distribution line is suppressed when a ground failure occurs on the distribution line.
SOLUTION: A compensating reactor circuit compensating the ground capacity of a distribution line includes a set of ground transformers inserted in a bus line of a substation, a zero-phase current transformer inserted in each distribution line, and a variable compensating reactor which is provided for each distribution line and is capable of manually or automatically varying the amount of a reactor that is grounded through a neutral point of the ground transformers and the zero-phase current transformer on each distribution line.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种分配线补偿反应堆系统，其中可以相对于用于变电站安装的分布式反应堆接地方法尽可能多地插入最佳量的反应器，通过该方法，流过电容器配电线路发生接地故障时，分配线被抑制。解决方案：补偿配电线的接地容量的补偿电抗器电路包括插入在变电站总线中的一组接地变压器，插入每个配电线路中的零相电流互感器，以及可变补偿电抗器，并且能够手动或自动地改变通过接地变压器的中性点和每个配线上的零相电流互感器接地的电抗器的量。版权所有（C）2009，JPO＆INPIT

5. 发明专利

JP2007116774A Power distribution system and on-street reactor device 审中-公开
标题翻译：功率分配系统和路由反应器设备
公开(公告)号：JP2007116774A
公开(公告)日：2007-05-10
申请号：JP2005303008
申请日：2005-10-18
申请人： Hokuriku Electric Power Co Inc:The , 北陸電力株式会社
发明人： NAKADA KAZUO , HASHIMOTO NORIYASU
IPC分类号： H02H9/08 , H01H85/042 , H02H3/08
摘要： PROBLEM TO BE SOLVED: To provide a power distribution system which can compensate a one-line grounding current surely and inexpensively even in the case that distribution lines of large capacitance to the earth are mixed and even if the switching of distribution systems is performed, and an on-street reactor device.
SOLUTION: On-street reactor devices RC1-RC9 which have reactors for compensating grounding currents for distribution lines C1-C9 of cables arranged underground and are arranged on the ground, are distributed to correspond to the magnitude of the capacitance to the earth of the distribution lines C1-C9.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种能够确实地和廉价地补偿单线接地电流的配电系统，即使在大地电容分配线混合的情况下，即使分配系统的切换是执行和路上反应器装置。
解决方案：具有用于补偿地下布置并布置在地面上的电缆的配电线路C1-C9的接地电流的电抗器装置RC1-RC9被分配以对应于地球电容的大小的分配线C1-C9。版权所有（C）2007，JPO＆INPIT

6. 发明专利

JP3825678B2 Control device of the compressor 有权
公开(公告)号：JP3825678B2
公开(公告)日：2006-09-27
申请号：JP2001333038
申请日：2001-10-30
申请人：三洋電機株式会社
发明人：雄一伊澤 , 秀明加藤 , 和久太田垣 , 隆寿松尾 , 康弘牧野 , 哲男野本
IPC分类号： H02H9/08 , H02M1/12 , H02M5/458 , H02P6/12
CPC分类号： H02M5/458 , H02M1/126

7. 发明专利

JP3213919B2 失效
公开(公告)号：JP3213919B2
公开(公告)日：2001-10-02
申请号：JP5243196
申请日：1996-02-15
IPC分类号： H02H9/08 , H02M3/28 , H02M7/12 , H02M7/21

8. 发明专利

JP2001238439A LEAKAGE CURRENT SUPPRESSING CIRCUIT AND POWER SUPPLY UNIT THEREWITH 失效
公开(公告)号：JP2001238439A
公开(公告)日：2001-08-31
申请号：JP2000045296
申请日：2000-02-23
申请人： NEC YONEZAWA LTD
发明人： TOKIDA YOSHITAKA
IPC分类号： H02H9/08 , H02M1/44 , H02M3/28 , H02M7/217
摘要： PROBLEM TO BE SOLVED: To provide a leakage current suppressing circuit capable of suppressing leakage current with counter measures against EMI, while taking full consideration into account without degrading degree of freedom of one of advantages of a portable electronic apparatus. SOLUTION: AC input voltage is divided by two capacitors 2, 3 inserted into an AC input line, and a Y capacitor 5 for measures against EMI is provided between the divided voltage and the secondary side a transformer 43. As a result, the voltage due to leakage current seen on the secondary side of the transformer can be lowered, so that it is possible for human beings to suppress electric shock, even one touches a secondary GND.

9. 发明专利

JP2000270415A NEUTRAL POINT EARTHING UNIT 失效
公开(公告)号：JP2000270415A
公开(公告)日：2000-09-29
申请号：JP7037599
申请日：1999-03-16
申请人： TAKAOKA ELECTRIC MFG CO LTD
发明人： TANAKA ISAMU
IPC分类号： H02H9/08 , H02B1/16
摘要： PROBLEM TO BE SOLVED: To reduce the installation space while simplifying the installation by housing equipment such as an earth transformer, a neutral compensation reactor, a neutral resistor, a disconnector, and the like, is the same steel box and interconnecting them in the box. SOLUTION: An earth transformer 7, a neutral resistor 10, a neutral compensation reactor 15, and disconnectors 11, 16 are housed in a neutral point earthing unit steel box 20 and the equipment are interconnected electrically in the neutral point earthing unit box 20. According to the arrangement, the installation space of a neutral point earthing unit can be reduced, the installation can be simplified and the installation schedule can be shortened.

10. 发明专利

JP2000092698A GROUNDING SUPPRESSION SYSTEM AND METHOD 失效
公开(公告)号：JP2000092698A
公开(公告)日：2000-03-31
申请号：JP36167898
申请日：1998-12-18
申请人： KANSAI ELECTRIC POWER CO , FUJI ELECTRIC CO LTD
发明人： NAGAI TSUMAYUKI , GANJI TAKASHI , FUDO HIROYUKI , ENDO HIROSHI , ISOZAKI MASARU , IWAI HIROMI , MATSUMOTO TOSHIRO
IPC分类号： H02H9/08
摘要： PROBLEM TO BE SOLVED: To provide a grounding suppression system and method for suppressing additional facility costs and suppressing a grounding current including impedance components (generally resistance components) without depending on a transmission form. SOLUTION: A grounding fault is detected by a grounding fault-detecting device 10 for generating a grounding current Ig, an inverse-phase current Iv with the same level and inverse phase as compared with the grounding current Ig is generated by an inverse-phase waveform-generating device 20, and the inverse-phase current Iv is injected to a grounding point G with a grounding phase via a grounding neutral line 8a on the primary side of a zero-phase transformer 8, thus canceling the grounding current Ig and suppressing grounding.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式