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公开(公告)号：US08669746B2
公开(公告)日：2014-03-11
申请号：US13129598
申请日：2010-02-06
CPC分类号： H01H9/0005
摘要： The invention relates to an on-load tap changer comprising semiconductor switching elements for uninterrupted switching between winding taps of a tapped transformer. According to the invention, contact bars are provided which extend in the direction of the path of the fixed tap contacts and can be contacted using contact bridges that can be jointly moved by a contact slide in such a way that direct electrical connections to the charge diverter and electrical connections to the inputs and the output of the semiconductor switching elements can be established.
摘要翻译： 本发明涉及一种有载分接开关，其包括用于在抽头变压器的绕组抽头之间不间断切换的半导体开关元件。 根据本发明，提供了接触杆，其沿着固定分接头触头的路径的方向延伸，并且可以使用可以由接触滑块联合移动的接触桥接触，使得与电荷分流器的直接电连接 并且可以建立与半导体开关元件的输入和输出的电连接。
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公开(公告)号：US20130220782A1
公开(公告)日：2013-08-29
申请号：US13811757
申请日：2011-09-02
申请人： Dieter Dohnal , Klaus Hoepfl , Christian Pircher , Silke Wrede
发明人： Dieter Dohnal , Klaus Hoepfl , Christian Pircher , Silke Wrede
IPC分类号： H01H9/00
CPC分类号： H01H9/0038 , H01F29/04 , H01H9/0027 , H01H33/16 , H01H33/6647
摘要： A tap changer for uninterrupted switching over between winding taps of a tapped transformer has two load branches each for a respective phase to be switched. Each load branch has a vacuum switching contact acting as main contact and parallel thereto at least one series connection of a switch-over resistance and a respective further vacuum switching contact. The two load branches are connected with a common load shunt or connectable by mechanical switching elements. Two respective vacuum switching contacts of each load branch are constructionally combined to form a single vacuum switching tube with two separate movable contacts actuatable independently of one another and a common fixed contact. The common fixed contact is connected with the common load shunt or connectable mechanical switching contacts.
摘要翻译： 用于不间断地在抽头变压器的绕组抽头之间切换的分接开关具有两个负载分支，每个用于要切换的相位。 每个负载分支具有用作主触点并与其平行的真空开关触点，其具有转换电阻和相应的另外的真空开关触点的至少一个串联连接。 两个负载分支与公共负载分流相连，或通过机械开关元件连接。 每个负载分支的两个相应的真空开关触点在结构上组合形成一个单独的真空开关管，该真空开关管具有彼此独立致动且具有公共固定触点的两个独立的可移动触点。 公共固定触点与公共负载分流器或可连接的机械开关触点连接。
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公开(公告)号：US20130170079A1
公开(公告)日：2013-07-04
申请号：US13643166
申请日：2011-02-23
申请人： Dieter Dohnal
发明人： Dieter Dohnal
IPC分类号： H02H7/055
CPC分类号： H02H7/055 , H01F29/04 , H01H9/0038
摘要： The invention relates to an on-load tap changer for switching among winding taps of a step transformer without interruption. According to the invention, in each auxiliary current branch of the on-load tap changer, which operates with vacuum switching tubes as switching elements, additional switches are provided in series with the vacuum switching tubes and the respective winding tap. Said additional switches cause a complete galvanic isolation of the vacuum switching tubes in the auxiliary current branches in steady-state operation.
摘要翻译： 本发明涉及一种用于在不间断地切换台阶变压器的绕组抽头之间的有载分接开关。 根据本发明，在作为开关元件的真空开关管工作的有载分接开关的每个辅助电流分支中，附加的开关与真空开关管和相应的绕组丝锥串联设置。 所述附加开关在稳态操作中引起辅助电流分支中的真空开关管的完全电隔离。
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公开(公告)号：US08415987B2
公开(公告)日：2013-04-09
申请号：US12989441
申请日：2008-08-27
IPC分类号： H03K3/00
CPC分类号： H01F29/04
摘要： An on-load tap changer with semiconductor IGBT switching elements for uninterrupted switching over between winding taps of a tapped transformer, has two load branches connectable with the respective winding taps and each load branch is electrically connected with a common load output line through a respective series circuit consisting of two oppositely connected IGBTs. A diode is connected parallel to each IGBT, and the two diodes in each load branch are connected oppositely to one another. A respective mechanical switch is connected in series with the series circuit of IGBTs and parallel diodes in each load branch. A respective varistor is connected parallel to each parallel circuit of IGBT and diode, and the varistors are so dimensioned that the respective varistor voltages are lower than the maximum blocking voltage of the respective parallel IGBTs but higher than the maximum instantaneous value of the tap voltage.
摘要翻译： 具有半导体IGBT开关元件的有载分接开关，用于在抽头变压器的绕组抽头之间不间断切换，具有可与相应的绕组抽头连接的两个负载分支，并且每个负载分支通过相应系列与公共负载输出线电连接 电路由两个相互连接的IGBT组成。 二极管并联连接到每个IGBT，并且每个负载支路中的两个二极管彼此相对连接。 相应的机械开关与每个负载分支中的IGBT和并联二极管的串联电路串联连接。 相应的变阻器与IGBT和二极管的每个并联电路并联连接，并且变阻器的尺寸使得各个压敏电阻的电压低于各个并联IGBT的最大阻塞电压，但高于抽头电压的最大瞬时值。
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公开(公告)号：US20080302639A1
公开(公告)日：2008-12-11
申请号：US12096639
申请日：2006-10-21
IPC分类号： H01H3/00
CPC分类号： H01H19/62 , H01H3/44 , H01H9/0005
摘要： The invention relates to a tap changer having a switching monitoring device, which is arranged above the upper transmission stage in a housing. For monitoring purposes, two cam switches are provided which are actuated by a cam disk which is connected to the contact-bearing switch column of the tap changer. The cam disk has a horizontally split contour at its end face, wherein one of the two cam switches runs on each partial contour.
摘要翻译： 本发明涉及一种具有切换监视装置的分接开关，该切换监视装置布置在壳体中的上传动台的上方。 为了监视目的，提供了两个凸轮开关，其由连接到分接开关的接触轴承开关柱的凸轮盘致动。 凸轮盘在其端面处具有水平分割的轮廓，其中两个凸轮开关中的一个在每个部分轮廓上运行。
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公开(公告)号：US06518771B2
公开(公告)日：2003-02-11
申请号：US09772289
申请日：2001-01-29
申请人： Rainer Frotscher , Dieter Dohnal
发明人： Rainer Frotscher , Dieter Dohnal
IPC分类号： G01R3112
CPC分类号： H01H1/0015 , H01H2009/0061
摘要： A method of monitoring contact burnoff in tap changers operating under load in which the load current is measured and for nominal variation of the voltage of the particular tap parameters are stored which are used to calculate the burnoff rate per contact per switching operation. From these values the cumulative burnoff rate of both the switching contact and resistance contact are determined and compared with limits or threshold values.
摘要翻译： 存储在负载下工作的抽头变换器中测量接触燃烧的方法，其中测量负载电流和特定抽头参数的电压的标称变化，其用于计算每个开关操作的每个触点的断电率。 根据这些值，确定开关触点和电阻触点的累积烧断率，并将其与极限值或阈值进行比较。
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47.发明授权Switching arrangement for load change-over switches of step switches and for selector switches 失效用于步进开关和选择开关负载切换开关的开关装置
公开(公告)号：US5786552A
公开(公告)日：1998-07-28
申请号：US704626
申请日：1996-09-25
CPC分类号： H01H9/0005 , H01F29/04 , H01H9/0038
摘要： The invention concerns a switching arrangement for load change-over switches of step switches and for selector switches, wherein two switching contacts movable in two directions are present. The first switching contact is in the form of a main switching contact and is connected to the load derivation by means of a first vacuum switchgear cell. The second switching contact is in the form of a resistance switching contact which is likewise connected to the load derivation by means of a series connection comprising a second vacuum switchgear cell and a transition resistor. Both the main and the resistance switching contacts can be moved independently of one another and without mutual coupling or influence. The main switching contact always reaches the new fixed contact abruptly and independently of the switching direction before the resistance switching contact leaves the previous fixed contact.
摘要翻译： PCT No.PCT / EP95 / 00855 Sec。 371日期1996年9月25日 102（e）1996年9月25日PCT 1995年3月8日PCT PCT。 WO95 / 24724 PCT公开号 日期1995年9月14日本发明涉及一种用于步进开关和用于选择开关的负载转换开关的开关装置，其中存在可在两个方向上移动的两个开关触点。 第一开关触点是主开关触点的形式，并通过第一真空开关装置连接到负载导出。 第二开关触点是电阻切换触点的形式，其同样通过包括第二真空开关装置和过渡电阻的串联连接与负载导出相连。 主电阻开关触点和电阻开关触点都可以彼此独立地移动，并且不会相互耦合或影响。 主开关触点始终在电阻切换触点离开先前的固定触点之前突然和独立于开关方向到达新的固定触点。
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公开(公告)号：US5266759A
公开(公告)日：1993-11-30
申请号：US925979
申请日：1992-08-05
申请人： Dieter Dohnal , Josef Neumeyer
发明人： Dieter Dohnal , Josef Neumeyer
CPC分类号： H01H5/06 , H01H9/0027
摘要： An actuator used with a load switch having a rotary drive shaft extending along a drive axis and carrying a cam and with an interrupter having an operating rod displaceable longitudinally of itself and generally perpendicular to the drive axis has a frame defining upper and lower pivots having respective upper and lower axes spaced from each other and generally parallel to the drive axis. An output parallelogrammatic linkage has an output link having upper and lower ends, movable between an upper and a lower position, and formed with an aperture alignable axially with the input-link aperture and an output coupling formation connected longitudinally on the rod so that on movement between the upper and lower positions the interrupter is operated. An input parallelogrammatic linkage has an input link formed with an aperture and an input coupling formation bearing radially on the cam so that rotation of the cam vertically displaces the input link between its upper and lower positions. A spring braced vertically in the windows in a position with the windows aligned axially bears upward on all the upper links and downward on all the lower links. Respective upper and lower stops on the frame engageable with the output link in respective upper and lower positions arrest same therein. Respective upper and lower release formations on the input linkage engage the stops on displacement of the input link into the respective upper and lower positions to release the output link from them.
摘要翻译： 与负载开关一起使用的致动器具有沿着驱动轴线延伸并承载凸轮的旋转驱动轴，并具有一个具有可沿其纵向方向位移并大致垂直于驱动轴线的操作杆的中断器，该框架限定了具有相应的上部和下部枢轴的框架 上下轴线彼此间隔开并且大致平行于驱动轴线。 输出平行四边形连杆具有输出连杆，其具有上端和下端，可在上部和下部位置之间移动，并且形成有可与输入连杆孔轴向对准的孔，以及在杆上纵向连接的输出联接结构，使得在运动 在上下位置之间，断续器被操作。 输入平行四边形连杆机构具有形成有孔径的输入连杆和在凸轮上径向地支撑的输入联接形成部，使得凸轮的旋转使输入连杆在其上部和下部位置之间垂直移位。 在窗户中的一个位置上垂直支撑的弹簧，其中窗口在所有上连杆上沿轴向对齐并在所有下连杆上向下。 可以在相应的上部和下部位置中与输出连杆接合的框架上的上下止动件将其中的相同。 输入连杆上的上下释放结构在输入链路移动到相应的上部和下部位置时将止动件接合，从而将输出连杆释放出来。
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公开(公告)号：US5128605A
公开(公告)日：1992-07-07
申请号：US673206
申请日：1991-03-21
申请人： Dieter Dohnal , Kurt Kugler
发明人： Dieter Dohnal , Kurt Kugler
IPC分类号： H01F29/04 , G01R31/333 , H01H33/66 , H02H7/055
CPC分类号： H02H7/055 , H01H2009/0061 , Y10S323/902
摘要： A multiphase stepping transformer wherein a closed vacuum interrupter at each phase is opened before a respective stepping switch is advanced is controlled by continuously monitoring current flow through the interrupters. Before the interrupters are opened an error signal is generated unless all of the monitored current flows lie to one side of a predetermined threshold. After the interrupters are opened an error signal is generated if current flow is detected through any of the interrupters. Advance of the stepping switches is blocked on generation of any error signal. The apparatus includes for each interrupter a respective current detector, a light-emitting diode energized by the respective detector, a light receiver associated with each diode, and a light-transmitting cable connecting each diode with the respective receiver.
摘要翻译： 通过连续地监视通过断流器的电流来控制在相应的步进开关提前之前每个相位处的闭合真空断路器被打开的多相步进变压器。 在断续器断开之前，产生误差信号，除非所有被监视的电流都位于预定阈值的一侧。 断路器打开后，如果通过任何断路器检测到电流，就会产生错误信号。 产生任何错误信号会阻止步进开关的进行。 该装置包括对于每个断续器，相应的电流检测器，由相应检测器激励的发光二极管，与每个二极管相关联的光接收器，以及将每个二极管与相应的接收器连接的发光电缆。
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50.发明授权Method for switching without any interruption between winding taps on a tap-changing transformer 有权用于切换变压器上的绕组抽头之间没有任何中断的方法公开(公告)号：US08289068B2
公开(公告)日：2012-10-16
申请号：US12989427
申请日：2008-08-27
IPC分类号： H03K17/60
CPC分类号： H01F29/04
摘要： The invention relates to a method for switching without any interruption between two winding taps (tap n, tap n+1) of a tap-changing transformer, wherein each of the two winding taps is connected to the common load output line via in each case one mechanical switch (Ds) and a series circuit, arranged in series thereto, comprising two IGBTs (Ip, In) which are switched in opposite directions.
摘要翻译： 本发明涉及一种在分接变换变压器的两个绕组抽头（抽头n，抽头n + 1）之间没有任何中断的方法，其中两个绕组抽头中的每一个连接到公共负载输出线路通路 串联布置的一个机械开关（Ds）和串联电路，包括沿相反方向切换的两个IGBT（Ip，In）。
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