公开(公告)号：US09065274B2

公开(公告)日：2015-06-23

申请号：US14076588

申请日：2013-11-11

申请人： GIGA-BYTE TECHNOLOGY CO., LTD.

发明人： Kuo Lun Tsen ,  Hui Mou Wu

IPC分类号： H02H1/04 ,  H02H7/055 ,  H02H9/04

CPC分类号： H02H7/055 ,  H01R13/6633 ,  H01R13/6666 ,  H01R24/64 ,  H02H9/042 ,  H03H7/38 ,  H04L12/40032 ,  H04L25/0278 ,  H04M1/745 ,  H04M3/18 ,  H04Q2213/13302 ,  H05K1/0257

摘要： A connection apparatus circuit includes an isolation transformer, an impedance matching network, a high-voltage capacitor and a first high-voltage surge protector. The isolation transformer has a first coil and a second coil, wherein the first coil has a first terminal, a second terminal and a center tap. The impedance matching network is coupled between the center tap and a relay terminal. The high-voltage capacitor is coupled between the relay terminal and a ground terminal. The first high-voltage surge protector is coupled between the relay terminal and the ground terminal. When a high-voltage surge exceeds a default value between the first terminal or the second terminal and the ground terminal, the first high-voltage surge protector is conducted to clamp current on the impedance matching network.

摘要翻译： 连接装置电路包括隔离变压器，阻抗匹配网络，高压电容器和第一高压电涌保护器。 隔离变压器具有第一线圈和第二线圈，其中第一线圈具有第一端子，第二端子和中心抽头。 阻抗匹配网络耦合在中心抽头和中继端子之间。 高压电容器连接在继电器端子和接地端子之间。 第一个高压浪涌保护器耦合在继电器端子和接地端子之间。 当高压浪涌超过第一端子或第二端子与接地端子之间的默认值时，第一高压电涌保护器被传导以钳位阻抗匹配网络上的电流。

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。

公开(公告)号：US07444266B2

公开(公告)日：2008-10-28

申请号：US11385434

申请日：2006-03-21

申请人： Bengt-Olof Stenestam ,  Gunnar Andersson

发明人： Bengt-Olof Stenestam ,  Gunnar Andersson

IPC分类号： G06F11/30 ,  G06F15/00 ,  G21C17/00

CPC分类号： G01R31/3274 ,  G01R31/027 ,  H01F29/04 ,  H01H2009/0061 ,  H02H7/055

摘要： A universal control and diagnostic system for a transformer that may be retrofit with existing control and tap-changer equipment, the system providing for remote monitoring and control of the equipment and for measuring various criteria associated with the tap-changer to substantially minimize damage to the equipment during a maneuver and for substantially avoiding carbonization of a connected contact.

摘要翻译： 用于变压器的通用控制和诊断系统，可以使用现有的控制和分接开关设备进行改造，该系统提供对设备的远程监控和控制，并用于测量与分接开关相关的各种标准，从而大大减少对 在机动操作期间设备，并大大避免连接的接触件的碳化。

公开(公告)号：US06762594B1

公开(公告)日：2004-07-13

申请号：US10111808

申请日：2002-04-29

申请人： Hanjörg Hauer

发明人： Hanjörg Hauer

IPC分类号： G05F114

CPC分类号： G05F1/20 ,  H02H7/055

摘要： The invention relates to a method for regulating the electrical voltage in electrical supply networks and/or consumer units and a device for carrying out said method. A regulating transformer (3) is inserted between a network node (1) in the supply network and/or consumer unit and at least one end user (2). The regulating transformer (3) comprises a high leakage impedance, which limits the ring current to the order of magnitude of the nominal current, in the case of a short-circuit between adjacent tappings (5) of the partial windings (4). The regulating transformer further comprises a transfer switch (7), to switch the partial windings (4).

摘要翻译： 本发明涉及一种用于调节供电网络和/或消费者单元中的电压的方法以及用于执行所述方法的装置。 调节变压器（3）插入供电网络和/或消费单元中的网络节点（1）和至少一个终端用户（2）之间。 在部分绕组（4）的相邻抽头（5）之间短路的情况下，调节变压器（3）包括高泄漏阻抗，其将环电流限制在额定电流的数量级。 调节变压器还包括转换开关（7），用于切换部分绕组（4）。

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。

公开(公告)号：US3786337A

公开(公告)日：1974-01-15

申请号：US3786337D

申请日：1973-02-14

申请人： REINHAUSEN MASCHF SCHEUBECK

发明人： KUGLER K

IPC分类号： G05F1/20 ,  H01F29/04 ,  H02H7/055 ,  H02M5/12

CPC分类号： H01H9/0005 ,  H01F29/04 ,  H01H9/548 ,  H02H7/055

摘要： Tap-changing means for tapped transformers include thyristors for effecting tap-changes. Additional tap-changing means include electric fuses, current-limiting resistors and a relay-controlled standby thyristor trigger system prevent the occurrence of dangerous short-circuit currents in case of malfunction of the principal thyristor trigger means.

摘要翻译： 抽头变压器的分接变换装置包括用于实现分接变换的晶闸管。 附加的分接变换装置包括电熔断器，限流电阻器和继电器控制的备用晶闸管触发器系统，防止在主晶闸管触发装置故障的情况下发生危险的短路电流。

公开(公告)号：US3600668A

公开(公告)日：1971-08-17

申请号：US3600668D

申请日：1970-02-02

申请人： GEN ELECTRIC

发明人： GOLDBERG LEON J

IPC分类号： G05F1/30 ,  H01F29/02 ,  H02H7/055 ,  G05F1/20

CPC分类号： G05F1/30 ,  H01F29/02 ,  H02H7/055

摘要： The solid state switches connected to fixed taps on a voltageinjecting transformer winding in a solid state step voltage regulator or load tap changing transformer are controlled synchronously to effectively insert the winding in series with the line for a variable number of half cycles, or preferably full cycles, of a base time interval. In addition to zero and full value voltage insertions, a variable portion of the full value voltage increment is injected in series with the line voltage without increasing the number of switches.

公开(公告)号：US1701379A

公开(公告)日：1929-02-05

申请号：US28257428

申请日：1928-06-04

申请人： GEN ELECTRIC

发明人： LENNOX JOHN S

IPC分类号： H02H7/055

CPC分类号： H02H7/055 ,  Y10T307/865

公开(公告)号：US20190252874A1

公开(公告)日：2019-08-15

申请号：US16326020

申请日：2017-08-15

申请人： ABB Schweiz AG

发明人： Tord Bengtsson ,  Nilanga Abeywickrama

IPC分类号： H02H7/055

CPC分类号： H02H7/055

摘要： The invention is concerned with a protection device, method and computer program product for protecting a transformer including a tap changer and a transformer arrangement including a transformer and a protection device. The transformer has at least two magnetically coupled windings with terminals (MT1, MT2, MT3, MT4) at which power enters and exits the transformer and a tap changer having impedance elements and a switch configured to gradually connect the impedance elements when changing between two tap changer positions during a tap changing operation. The method is performed in the protection device and includes: obtaining measurements of power transmission properties (Iin, Uin, Iout, Uout) at the magnetically coupled windings, estimating energy deposited in the impedance elements during a tap changing operation based on the measured physical properties, comparing the estimated deposited energy with a failure threshold, and protecting the transformer in case the threshold is exceeded, wherein the estimating of the deposited energy includes determining the power loss of the transformer between the terminals (MT1, MT2) where power enters and the terminals (MT3, MT4) where power leaves the transformer and integrating the power loss.

公开(公告)号：US09054522B2

公开(公告)日：2015-06-09

申请号：US13643166

申请日：2011-02-23

申请人： Dieter Dohnal

发明人： Dieter Dohnal

IPC分类号： H02H7/04 ,  H02H7/055 ,  H01F29/04 ,  H01H9/00

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。