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1. 发明授权

EP3610546B1 FLOATING NEUTRAL DETECTION AND LOCALIZATION SYSTEM AND METHODS 有权
公开(公告)号：EP3610546B1
公开(公告)日：2024-07-24
申请号：EP18722302.9
申请日：2018-04-11
IPC分类号： H02J3/26 , G01R19/25 , G01R31/08 , G01R31/50 , H02H3/50 , H02H5/10
CPC分类号： H02J3/26 , Y02E40/50 , G01R19/2513 , G01R31/086 , G01R31/088 , H02H3/50 , H02H5/105 , G01R31/50 , H02J2203/2020200101 , Y02E60/00 , Y04S40/20 , Y04S10/22 , Y04S10/52 , Y02E40/70

2. 发明公开

EP3107170A1 METHOD AND APPARATUS FOR AUTOMATIC ADAPTATION OF EARTH-FAULT PROTECTION 有权转让
标题翻译： VERFAHREN UND VORRICHTUNG ZUR AUTOMATISCHEN ANPASSUNG EINES ERDKURZSCHLUSSSCHUTZES
公开(公告)号：EP3107170A1
公开(公告)日：2016-12-21
申请号：EP16174300.0
申请日：2016-06-14
申请人： ABB Technology AG
发明人： Altonen, Janne , Wahlroos, Ari
IPC分类号： H02H3/16 , G01R31/08 , H02H7/26 , H02H3/50
CPC分类号： H02H7/267 , G01R31/08 , H02H3/165 , H02H3/50
摘要： A method and an apparatus for adapting earth-fault protection of an electric network, the apparatus comprising means for detecting an earth fault in the electric network, means for determining a frequency of a residual voltage of the electric network, and means for adapting, in response to the determined frequency of the residual voltage being lower than a predetermined threshold, the earth-fault protection settings of the electric network.
摘要翻译：一种用于适应电网的接地故障保护的方法和装置，所述装置包括用于检测电网中的接地故障的装置，用于确定电网的剩余电压的频率的装置，以及用于在响应于所确定的残余电压的频率低于预定阈值，电网的接地故障保护设置。

3. 发明授权

EP0718948B1 Circuit interrupter providing protection and waveform capture for harmonic analysis 失效
标题翻译：切换到保护和波形捕获谐波分析
公开(公告)号：EP0718948B1
公开(公告)日：2000-03-15
申请号：EP95119235.0
申请日：1995-12-06
申请人： EATON CORPORATION
发明人： Engel, Joseph Charles , Saletta, Gary Francis , Johnson, Richard Arthur
IPC分类号： H02H3/093 , H02H3/50 , G01R19/25 , G01R23/20
CPC分类号： G01R21/133 , H02H1/0007 , H02H3/04 , H02H3/0935 , H02H3/50

4. 发明公开

EP0721684A1 VERFAHREN ZUM GEWINNEN EINES FEHLERKENNZEICHNUNGS-SIGNALS 失效
标题翻译：程序为获得错误指示信号
公开(公告)号：EP0721684A1
公开(公告)日：1996-07-17
申请号：EP94928264.0
申请日：1994-09-20
申请人： SIEMENS AKTIENGESELLSCHAFT
发明人： DALSTEIN, Thomas,Dr.
IPC分类号： G01R31 , G05B23 , H02H1 , H02H3
CPC分类号： G05B23/024 , G01R31/025 , H02H1/0015 , H02H1/0092 , H02H1/04 , H02H3/50 , Y10S706/915
摘要： The invention concerns a method of generating, using a neural-net arrangement, a fault-indication signal in the event of a fault occurring in a power-supply network being monitored. In order to generate rapidly fault-indication signals which distinguish between a trnsient short-circuit due to arcing and a permanent one due to metal contact, the invention calls for a neural net (26) to be used for each phase in the power-supply network. Each neural net (26) is taught by simulating the voltages [UR(t)] for each phase during arcing and metal-contact short-circuits in such a way that, in the event of an arcing short, the output signal (S) has one predetermined value (0.8) and, in the event of a metal-contact short, another predetermined value (0.1). Sequentially sampled normal values [URn1(t)...URn20(t)] of the voltage [UR(t)] of each of the phases in the power-supply network are applied simultaneously to various neurons (31) in the input layer (27) of each neural net (26).

5. 发明公开

EP0028613A1 PROTECTION DEVICE OR CIRCUIT FOR LOUDSPEAKERS 失效
标题翻译：后卫还是交付扬声器。
公开(公告)号：EP0028613A1
公开(公告)日：1981-05-20
申请号：EP80900878.0
申请日：1980-05-08
申请人： FORTIETH BENELUX NOMINEES PTY. LTD.
发明人： SCHEREK, Paul
IPC分类号： H02H3 , H04R3
CPC分类号： H02H3/50 , H02H3/093 , H04R3/007
摘要： Un dispositif de protection pour haut-parleurs comprend un circuit (16) de mesure continue de la puissance moyenne d'un audio-signal fournie a la commande d'un haut-parleur et de detection des niveaux de crete dudit signal dans les sens positif et negatif. Le circuit (16) est adapte pour fournir une sortie particuliere a un circuit de commutation (T1) pour actionner un relais (13) lorsque la puissance moyenne excede un maximum predetermine, afin d'eviter un echauffement excessif de ladite commande ou lorsque lesdits niveaux de crete excedent, dans l'un ou l'autre sens, des limites predeterminees etablies pour correspondre aux limites d'excursion positives ou negatives maximum de ladite commande. L'activation du relais entraine la commutation du cheminement de l'audio-signal vers la commande dans une condition de circuit ouvert ou commute une charge de resistance dans ce cheminement afin de reduire sensiblement la puissance fournie a la commande jusqu'a ce que la surcharge cesse. Un tel circuit separe est prevu pour chaque commande dans un dispositif haut-parleur a commandes multiples assurant ainsi une protection contre des composantes de distorsion dudit audio-signal dues aux coupures. Un circuit facultatif (B4, R2, C2, 28, T2) pour une protection a courant continu (DC) est aussi decrit ainsi qu'un dispositif dans lequel les niveaux predetermines sont reglables par l'usager, pour son incorporation dans un audio-amplificateur.

6. 发明公开

EP2577329A4 METHOD FOR DETECTION OF LEAKAGE OR FAULT CURRENTS FROM EQUIPMENT IN AN ELECTRICAL POWER SYSTEM 审中-公开
公开(公告)号：EP2577329A4
公开(公告)日：2018-01-10
申请号：EP11791744
申请日：2011-06-07
申请人： AMPCONTROL PTY LTD
发明人： WYLIE TIMOTHY ANDREW , WEBSTER IAN , STEPIEN PETER
IPC分类号： G01R19/257 , G01R19/25 , G01R31/02 , H02H3/46 , H02H3/50
CPC分类号： G01R31/025 , G01R19/25 , G01R19/2506 , H02H3/08 , H02H3/46 , H02H3/50
摘要： A method of digital sampling of a current or group of currents in an electrical system including using in the sampling, sufficient bandwidth to reconstruct the amplitude and phase of a synthesized power frequency and its harmonics and a fundamental carrier frequency of switching electronics and modulation sidebands.

7. 发明公开

EP2097961A1 POWER SUPPLY MONITORING SYSTEM 审中-公开
标题翻译：电源监控系统
公开(公告)号：EP2097961A1
公开(公告)日：2009-09-09
申请号：EP07815611.4
申请日：2007-11-23
申请人： Alinta Asset Management Pty. Ltd.
发明人： EDWARDS, Karl Nathan
IPC分类号： H02H3/00 , H02H11/00
CPC分类号： G01R31/42 , G01R31/021 , G01R31/024 , G01R31/025 , G01R31/04 , G01R31/041 , H01H83/14 , H02H3/32 , H02H3/38 , H02H3/50 , H02H5/105 , H02H11/001 , H02H11/002 , H02H11/005
摘要： A method for detecting predetermined fault conditions associated with the supply of AC electrical power to a consumer, the supply having an active conductor and a neutral conductor with the neutral conductor being connected to earth. The method comprises providing a first current detector associated with the active conductor, providing a second current detector associated with the neutral conductor; providing a voltage detector to detect voltage between the active conductor and the neutral conductor, and checking a current ratio of neutral current to active current whereby the current ratio is indicative of a predetermined fault condition. Also disclosed is a method of checking the condition of supply line active and neutral conductors in a consumer's supplied premises including determining the impedance of the active conductor and the impedance of the neutral conductor to indicate the condition of each of the active and neutral conductors.

8. 发明公开

EP1544973A1 Motor control system 失效转让
标题翻译： Motorsteuerungssystem
公开(公告)号：EP1544973A1
公开(公告)日：2005-06-22
申请号：EP03257911.2
申请日：2003-12-16
申请人： P D Technology Limited
发明人： Ryecroft, Gary
IPC分类号： H02H7/085
CPC分类号： H02H7/0851 , H02H3/006 , H02H3/50 , H02H7/0852 , H02H7/0858
摘要： A motor control system for a roller shutter door comprises four opto-detectors (2, 4, 6, 8) operable to send signals to a microprocessor. The microprocessor analyses the signals to determine the current status of the door, such as a limit of travel, stall or overheat condition.
摘要翻译：用于卷帘门的马达控制系统包括四个光电检测器（2,4,6,8），可操作以将信号发送到微处理器。微处理器分析信号以确定门的当前状态，例如行程限制，失速或过热状况。

9. 发明授权

EP0286951B1 Schaltungsanordnung zur Überwachung eines Mehrpuls-Stromrichters 有权转让
标题翻译：监测多晶硅转换器电路
公开(公告)号：EP0286951B1
公开(公告)日：1993-08-04
申请号：EP88105425.8
申请日：1988-04-06
申请人： Alcatel SEL Aktiengesellschaft
发明人： Petzold, Dieter , Blasko, Antal , Frank, Michael , Faltermeier, Josef
IPC分类号： H02H7/125 , H02H3/50
CPC分类号： H02H7/1255 , H02H3/50

10. 发明公开

EP0357392A3 Circuit and method for DC content protection of parallel VSCF power systems 失效
标题翻译：直流内容保护并联VSCF电力系统的电路和方法
公开(公告)号：EP0357392A3
公开(公告)日：1991-05-22
申请号：EP89308754.4
申请日：1989-08-30
申请人： SUNDSTRAND CORPORATION
发明人： Beg, Mirza Akmal
IPC分类号： H02J3/36
CPC分类号： H02J3/36 , H02H3/50 , Y02E60/60 , Y10T307/576 , Y10T307/724
摘要： A method of selectively isolating faulty channels in a parallel electric power system having at least two controllable AC power sources includes the steps of producing a DC content signal (V dc ) representative of the magnitude of DC voltage in an AC output of one of the power sources and producing a differential current signal (V ic ) representative of differential DC current flowing in connected phases of the power sources. The DC content and differential current signals are combined to produce an error signal (V ec ) which is used to control the operation of the first power source, thereby reducing the magnitude of DC voltage in its output. When the error signal exceeds a predetermined threshold level, a trip signal can be produced and used to selectively isolate a failed channel in the power system. Following isolation of the channels, the differential current signal is disabled such that the error signal is only representative of the DC content signal for split channel operation.

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