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    • 1. 发明申请
    • A SYSTEM FOR TRANSIENT OVERVOLTAGE PROTECTION
    • 一种瞬态过电压保护系统
    • WO2010066303A1
    • 2010-06-17
    • PCT/EP2008/067390
    • 2008-12-12
    • ABB RESEARCH LTDSANNINO, AmbraBREDER, HenrikLILJESTRAND, LarsRAFOSS, Svenn-ErikPIASECKI, Wojciech
    • SANNINO, AmbraBREDER, HenrikLILJESTRAND, LarsRAFOSS, Svenn-ErikPIASECKI, Wojciech
    • H02H9/04F03D9/00
    • H02H9/04
    • The present invention relates to a power system (1) comprising an electrical apparatus (2), a switchgear (4, 4a) electrically connected by means of a power cable (3) to the apparatus and including a switch (5) arranged to connect and disconnect electrical power to the apparatus via the power cable, wherein transient overvoltages may occur when connecting or disconnecting the power by operating the switch, and the system further comprises a transient overvoltage reducing device arranged to protect the apparatus against the transient overvoltages transmitted through the power cable to the apparatus. The transient overvoltage reducing device (6, 6a, 6b) is arranged inside of or in immediate proximity to the switchgear. The present invention also relates to a switchgear comprising a bushing and a transient overvoltage reducing device for providing transient overvoltage protection for an electrical apparatus, and to a power cable including a cable termination with a transient overvoltage reducing device arranged to protect the apparatus against the transient overvoltages transmitted through the power cable.
    • 电力系统技术领域本发明涉及一种电力系统(1),包括电气设备(2),通过电力电缆(3)与设备电连接的开关设备(4,4a),并且包括开关(5) 并且经由所述电力电缆断开对所述设备的电力,其中当通过操作所述开关来连接或断开所述电力时可能发生瞬态过电压,并且所述系统还包括瞬态过电压降低装置,所述瞬态过电压降低装置被布置为保护所述装置免受通过所述电力线传输的瞬态过电压 电源线到设备。 瞬态过电压降低装置(6,6a,6b)布置在开关柜的内部或紧邻开关装置。 本发明还涉及一种开关装置,其包括衬套和用于为电气设备提供瞬态过电压保护的瞬态过电压降低装置,以及包括具有瞬态过电压降低装置的电缆终端的电力电缆,该瞬态过电压降低装置布置成保护装置免受瞬态 过电压通过电源线传输。
    • 3. 发明申请
    • A TAP CHANGER AND A METHOD OF OPERATING A TAP CHANGER
    • TAP更换器及其操作方法
    • WO2013000608A1
    • 2013-01-03
    • PCT/EP2012/058363
    • 2012-05-07
    • ABB TECHNOLOGY AGBREDER, HenrikJONSSON, Lars
    • BREDER, HenrikJONSSON, Lars
    • H01H9/00H01F29/04H02H7/055
    • H02H7/055H01F29/04H01H9/0016H01H9/0038
    • The present invention relates to a tap changer comprising a diverter switch which has at least two branches, wherein each branch comprises: a series connection of a main interrupter and a transition interrupter; and a transition resistor connected in parallel with the main interrupter. The tap changer further comprises at least one current detector arranged to detect a current flowing through at least one path of the diverter switch and to generate a current indication signal in response to a detected current; as well as a fault detector. The fault detector is arranged to receive a current indication signal from the current detector; determine, based on at least one received current indication signal, whether a fault has occurred in the diverter switch; and generate a fault indication signal if determined that a fault has occurred in the diverter switch.
    • 本发明涉及一种分接开关,其包括具有至少两个分支的切换开关,其中每个分支包括:主断续器和过渡断续器的串联连接; 以及与主断路器并联连接的过渡电阻器。 分接开关还包括至少一个电流检测器,其布置成检测流过切换开关的至少一个路径的电流并响应于检测到的电流产生电流指示信号; 以及故障检测器。 故障检测器被布置成从电流检测器接收电流指示信号; 基于至少一个接收到的当前指示信号确定切换开关中是否发生故障; 并且如果确定在切换开关中已经发生故障,则生成故障指示信号。
    • 4. 发明申请
    • THERMALLY INDEPENDENT OVERCURRENT TRIPPING DEVICE
    • 热独立的过流跳闸装置
    • WO2010133346A1
    • 2010-11-25
    • PCT/EP2010/003045
    • 2010-05-19
    • ABB AGBECERRA, MarleyVALDEMARSSON, StefanBREDER, Henrik
    • BECERRA, MarleyVALDEMARSSON, StefanBREDER, Henrik
    • H01H71/32H01H71/43
    • H01H71/32H01F7/122H01F7/14H01H53/06H01H71/43
    • The invention is about an electrical overcurrent tripping device (1) for a circuit breaker (10), said tripping device (1 ) comprising an actuating member (2) which in case of an overcurrent is driven to interact directly or indirectly with a movable contact piece (13) of the circuit breaker to open a contact point (11) in the circuit breaker if said overcurrent is exceeding a pre-set tripping threshold for a predetermined tripping delay time. Said actuating member (2) is coupled to a magnetic circuit (3) whereby the driving force acting on the actuating member (2) is created by the magnetic field of the magnetic circuit, said magnetic field being induced by the overcurrent, that said actuating member (2) is coupled to an electromagnetic damping arrangement (4) to set the tripping delay time, and that said actuating member (2) is connected to a coupling spring (5) configured to adjust the overcurrent tripping threshold.
    • 本发明涉及一种用于断路器(10)的电过电流跳闸装置(1),所述跳闸装置(1)包括致动构件(2),其在过电流的情况下被驱动以与可动触点直接或间接相互作用 (13),以在所述过电流超过预定跳闸延迟时间的预设跳闸阈值时打开断路器中的接触点(11)。 所述致动构件(2)联接到磁路(3),由此作用在致动构件(2)上的驱动力由磁路的磁场产生,所述磁场由过电流引起,所述致动构件 构件(2)联接到电磁阻尼装置(4)以设定跳闸延迟时间,并且所述致动构件(2)连接到构造成调节过电流跳闸阈值的联接弹簧(5)。
    • 5. 发明申请
    • COMPACT SECONDARY SUBSTATION COMPRISING A FAULT PROTECTION SYSTEM, A METHOD FOR FAULT PROTECTION IN A COMPACT SECONDARY SUBSTATION, AND A CONTROL UNIT FOR PERFORMING THE METHOD
    • 包含故障保护系统的紧凑二次基站,紧凑二次基站中的故障保护方法和用于执行方法的控制单元
    • WO2008113742A2
    • 2008-09-25
    • PCT/EP2008/053026
    • 2008-03-13
    • ABB TECHNOLOGY LTD.THRUE, CarstenBREDER, HenrikLUNDIN, Leif
    • THRUE, CarstenBREDER, HenrikLUNDIN, Leif
    • H02H7/28
    • H02B13/025H01H33/26H01H33/666H01H79/00
    • The present invention relates to a Compact Secondary Substation comprising a fault protection system and a method for fault protection in Compact Secondary Substations (CSS). The CSS comprises a Ring Main Unit (RMU), a transformer and a Low Voltage (LV) switchgear.The object of the invention is to fault protect a secondary switchgear, a further object of the invention is in fault situations to bring the secondary switchgear back in operation as soon as possible. The objects can be fulfilled by a system where the CSS comprises a number of detectors (114, 116, 118, 126, 128, 134), which detectors can be placed at least in one of the RMU, the transformer or in the LV switchgear, which detectors can be connected to a control unit (106), which control unit by fault detection by the detectors can activate a fast operating switch (112) for grounding. By using the fast operating grounding switch (112) and controlling this on the basis of the detectors placed inside the CSS, an active arc fault protection is achieved. The control unit (106) also controls the fast operating grounding switch (112) so that it works as a working grounding switch.
    • 本发明涉及一种紧凑型二次变电站,其包括故障保护系统和紧凑型二次变电站(CSS)中的故障保护方法。 CSS包括环形主单元(RMU),变压器和低压(LV)开关设备。本发明的目的是对二次开关设备进行故障保护,本发明的另一个目的是在故障情况下使二次开关柜 尽快恢复运作。 这些物体可以通过系统来实现,其中CSS包括多个检测器(114,116,118,126,128,134),该检测器可以至少放置在RMU,变压器或LV开关柜中的一个中 ,哪些检测器可以连接到控制单元(106),通过检测器的故障检测,该控制单元可以激活用于接地的快速操作开关(112)。 通过使用快速操作的接地开关(112)并根据放置在CSS内部的检测器进行控制,可实现有源电弧故障保护。 控制单元(106)还控制快速操作的接地开关(112),使其作为工作接地开关。
    • 7. 发明申请
    • COMPACT SECONDARY SUBSTATION WITH COOLING SYSTEM
    • 具有冷却系统的紧凑二次基质
    • WO2008113745A1
    • 2008-09-25
    • PCT/EP2008/053033
    • 2008-03-13
    • ABB TECHNOLOGY AGTHRUE, CarstenBREDER, HenrikOLSSON, Carl-Olof
    • THRUE, CarstenBREDER, HenrikOLSSON, Carl-Olof
    • H01F27/10H02B1/56H02B7/08
    • H01F27/10H01F27/06H01F27/20H02B1/56H02B7/08
    • The present invention relates to a Compact Secondary Substation (CSS) containing at least one transformer (6, 108, 208) which is connected to a high voltage input (110, 210) and through a low voltage switch board (112, 212) to consumers. The object of the invention is to perform cooling of a CSS in a way that mostly isolates the inner volume of the CSS from atmospheric air. This object can be fulfilled if the transformer is cooled by a cooling system comprising a heat exchanger (8, 104, 214) in which a first medium and a secondary medium are circulated, where the first medium contains heat generated by the transformer and the secondary medium is circulated through pipes or tubes arranged in the soil around the CSS and is thus cooled by heat transmission towards the soil. Such a CSS can also have a much smaller volume than a typical air-cooled CSS.
    • 本发明涉及包含至少一个变压器(6,108,208)的小型次级变电站(CSS),其连接到高电压输入端口(110,210),并通过低压开关板(112,212)连接到 消费者。 本发明的目的是以大部分将CSS的内部容积与大气隔离的方式进行CSS的冷却。 如果变压器由包括第一介质和第二介质循环的热交换器(8,104,214)的冷却系统来冷却,则第一介质包含由变压器产生的热量和次级 介质通过布置在CSS周围的土壤中的管道或管道循环,并因此通过向土壤的热传递而被冷却。 这样的CSS也可以比典型的空气冷却CSS小得多的体积。