公开(公告)号：US08171612B2

公开(公告)日：2012-05-08

申请号：US11885561

申请日：2006-02-20

Applicant: Mårten Landaeus

Inventor： Mårten Landaeus

IPC: B25B27/00 ,  B23P11/02

CPC classification number: H02G1/14 ,  H02G15/182 ,  H02G15/1826 ,  Y10T29/4987 ,  Y10T29/53657

Abstract: A device for stretching an elastically expandable body, wherein the device includes a stiff tube over which at least part of the elastically expandable body is arranged to be applied when being stretched. The device includes at least one sliding element designed to be located in at least that end of the body where the application of the tube starts, to facilitate the application of the body onto the tube.

Abstract translation: 一种用于拉伸弹性可膨胀体的装置，其中该装置包括刚性管，弹性可扩张体的至少一部分被布置成在拉伸时被施加。 该装置包括至少一个滑动元件，该滑动元件设计成位于至少该主体的端部，其中管的施加开始，以便于将本体施加到管上。

公开(公告)号：US08159229B2

公开(公告)日：2012-04-17

申请号：US12293601

申请日：2006-10-18

Applicant: Magnus Akke ,  Björn Westman ,  Henrik Åshuvud

Inventor： Magnus Akke ,  Björn Westman ,  Henrik Åshuvud

IPC: G01R31/08 ,  H02H3/00

CPC classification number: H02H3/402 ,  G01R31/088

Abstract: A load compensation method for phase-to-ground loops in distance protection. A first reactive reach is estimated assuming zero fault resistance or with a positive sequence current. A second reactive reach is estimated with a zero sequence current. A third reactive reach is estimated with a negative sequence current. An import or export condition is estimated. A fourth reactive reach for import or export condition is estimated based on the first, second and third reactive reach. A fault impedance is estimated based on the estimated fourth reactive reach.

Abstract translation: 一种用于距离保护的相对地环路的负载补偿方法。 假设零故障电阻或正序列电流估计第一反应到达。 以零序电流估计第二反应到达。 用负序电流估计第三个反应到达。 估计进出口条件。 根据第一，第二和第三无效范围估计进出口条件的第四个反应性达到。 基于估计的第四无功覆盖率来估计故障阻抗。

公开(公告)号：US08115584B2

公开(公告)日：2012-02-14

申请号：US13114853

申请日：2011-05-24

Applicant: Anders Bo Eriksson ,  Julia Forslin

Inventor： Anders Bo Eriksson ,  Julia Forslin

IPC: H01F17/06

CPC classification number: H01F27/263 ,  H01F3/14 ,  H01F27/12 ,  H01F27/33 ,  H01F37/00

Abstract: An induction device for association with high voltage electric transmission systems having at least one core frame and at least one winding arranged around said core frame. The induction device has at least one magnetic core leg arranged in said core frame. The core frame includes a stack of core segments of a magnetic material being cooled by cooling medium, arranged in compression in the core frame, core gaps being arranged to separate the core segments, and a plurality of spacers, arranged in the core gaps between the core segments, with a cross section of hexagonal shape, having an upper and a lower end-face being in contact with the core segments. The spacers in at least one of the core gaps are arranged densely packed so as to form a compact filling in the core gap.

Abstract translation: 一种用于与具有至少一个芯框架和围绕所述芯框布置的至少一个绕组的高压电力传输系统相关联的感应装置。 感应装置具有布置在所述芯框架中的至少一个磁芯脚。 芯框架包括由冷却介质冷却的磁性材料的堆叠的芯片段，其被布置成在芯框架中压缩，芯间隙布置成分离芯部段，以及多个间隔件，布置在芯间隙之间 芯部段，具有六边形形状的横截面，具有与芯部段接触的上端面和下端面。 至少一个芯间隙中的间隔物被密集地排列，以在芯间隙中形成紧凑的填充物。

公开(公告)号：US08107266B2

公开(公告)日：2012-01-31

申请号：US12161585

申请日：2006-06-15

Applicant: Patrik Karlsson ,  Stellan Dahlgren ,  Fabienne Chataignere ,  Per-Olov Hedblad

Inventor： Patrik Karlsson ,  Stellan Dahlgren ,  Fabienne Chataignere ,  Per-Olov Hedblad

IPC: H02J3/36

CPC classification number: H02J3/36 ,  H02M7/7575 ,  Y02E60/60

Abstract: A converter for converting alternating voltage into direct voltage and vice versa in a converter station of a high voltage transmission system including a series connection of a plurality of converter valves. The converter has connections to transformers on both of two opposite sides of the converter valves.

Abstract translation: A转换器，用于在包括多个转换阀的串联连接的高压传输系统的转换器站中将交流电压转换成直流电压，反之亦然。 转换器在转换器阀门的两个相对两侧都具有与变压器的连接。

公开(公告)号：US08081497B2

公开(公告)日：2011-12-20

申请号：US12161380

申请日：2006-06-15

Applicant: Ulf Radbrant ,  Lars-Erik Juhlin

Inventor： Ulf Radbrant ,  Lars-Erik Juhlin

IPC: H02J3/38 ,  H02J3/44

CPC classification number: H02J3/36 ,  H02H3/05 ,  H02H7/26 ,  Y02E60/60 ,  Y10T307/653 ,  Y10T307/729

Abstract: A converter station for connecting an AC system to a bipolar HVDC transmission line. A DC neutral arrangement includes first DC breakers enabling breaking of a first current path from the neutral bus of one pole to the neutral bus of the other pole at bipolar operation of the station for changing to monopolar operation thereof for isolation of a faulty section of the system while establishing a current path to electrode line connecting members for diverting the current from the one pole thereto. A separate connecting member is provided for each of the electrode lines. A connector is configured to connect each neutral bus to an optional of the two electrode line connecting members.

Abstract translation: 用于将AC系统连接到双极HVDC传输线的转换站。 直流中性装置包括第一直流断路器，其能够在站的双极性操作期间断开从一极的中性母线到另一极的中性母线的第一电流路径，以改变为单极操作，以隔离故障部分 同时建立到电极线连接构件的电流路径，用于将电流从一个极转向其上。 为每个电极线提供单独的连接构件。 连接器被配置为将每个中性母线连接到两个电极线连接构件的可选件。

公开(公告)号：US08044307B2

公开(公告)日：2011-10-25

申请号：US12521675

申请日：2007-12-18

Applicant: Jan Anger ,  Mats Bernesjö ,  Ramsis Girgis

Inventor： Jan Anger ,  Mats Bernesjö ,  Ramsis Girgis

IPC: H05K5/00

CPC classification number: H01F27/06 ,  H01F27/02 ,  H01F27/321 ,  H01F27/33

Abstract: A power transformer/reactor immersed in oil including a transformer/reactor core and windings accommodated in a tank including a tank base plate and tank walls. A foundation supports the tank. An elongated continuous band forming a closed frame is arranged between the base plate and the foundation. An outer periphery of the base plate extends outside an inner periphery of the frame and thereby encloses an air volume within the frame, the base plate and foundation. The tank support reduces sound emitted from the transformer/reactor.

Abstract translation: 浸入油中的电力变压器/电抗器，包括变压器/电抗器芯和容纳在包括罐底板和罐壁的罐中的绕组。 一个基础支持坦克。 形成闭合框架的细长连续带布置在基板和基座之间。 基板的外周延伸到框架的内周的外侧，从而在框架，基板和基座内包围风量。 坦克支持可以减少变压器/反应堆发出的声音。

公开(公告)号：US07989019B2

公开(公告)日：2011-08-02

申请号：US11579182

申请日：2005-05-02

Applicant: Uno Gäfvert

Inventor： Uno Gäfvert

IPC: B05D1/00 ,  B05D1/02 ,  B05D1/30 ,  B05D5/00 ,  B05D5/12

CPC classification number: C10G25/02 ,  B01J27/043 ,  C10G29/04 ,  C10G29/06 ,  C10G53/08 ,  C10M175/0008 ,  C10M175/0016 ,  C10M175/0058 ,  C10M175/0091 ,  C10N2240/201 ,  H01F27/14

Abstract: A method for administering passivator to a conductor in a power transformer, comprising providing a reservoir of the passivator, wherein the reservoir is provided by adding the passivator to solid insulation prior to impregnating the solid insulation with oil, and wherein the passivator is added to the solid insulation as the solid insulation is applied to a conductor.

Abstract translation: 一种用于将钝化剂施加到电力变压器中的导体的方法，包括提供钝化剂的储存器，其中通过在将固体绝缘体与油浸渍之前将钝化剂添加到固体绝缘体中来提供储存器，并且其中将钝化剂添加到 固体绝缘，因为固体绝缘应用于导体。

公开(公告)号：US07977589B2

公开(公告)日：2011-07-12

申请号：US12756604

申请日：2010-04-08

Applicant: Lena Lunn ,  Johan Kemppi

Inventor： Lena Lunn ,  Johan Kemppi

IPC: H01H21/00

CPC classification number: H01H9/0016 ,  H01H2009/0061

Abstract: A tap changer and a method for measuring a contact sequence of a tap changer is provided. The tap changer includes a cylinder and a shaft that is rotatably arranged inside the cylinder, the cylinder is provided with fixed contacts, the shaft is provided with a contact circuit facing the cylinder and including mechanical contacts, which mechanical contacts are adapted to selectively mate with the fixed contacts of the cylinder upon rotation of the shaft, the contact circuit also includes at least two measuring points for measuring the function of the contact circuit. The tap changer includes at least one measuring contact device, which is electrically connected to the respective measuring points in the contact circuit, and which the measuring contact device is arranged inside the shaft. This facilitates access to the measuring points of the tap changer.

Abstract translation: 提供了分接开关和用于测量分接开关的接触顺序的方法。 分接开关包括气缸和可旋转地布置在气缸内的轴，气缸设置有固定触点，该轴设置有面向气缸的接触电路并且包括机械触头，该机械触头适于选择性地配合 在轴旋转时，气缸的固定触点，接触回路还包括用于测量接触回路功能的至少两个测量点。 分接开关包括至少一个测量接触装置，其与接触电路中的相应测量点电连接，并且测量接触装置布置在轴内。 这有助于进入分接开关的测量点。

公开(公告)号：US07943853B2

公开(公告)日：2011-05-17

申请号：US12158824

申请日：2006-11-28

Applicant: Joakim Pettersson ,  Mattias Lundquist

Inventor： Joakim Pettersson ,  Mattias Lundquist

IPC: H01B17/00

CPC classification number: H01B13/147 ,  H01B17/325 ,  H01B19/04 ,  Y10T29/49995

Abstract: A method for manufacturing a post insulator. A core is introduced into a tube of an insulating stiff material while leaving a small circumferential space separating the core and inner walls of the tube. Adhesive is introduced under an overpressure into an interior of the tube and is cured while maintaining an overpressure in the interior of the tube.

Abstract translation: 一种后绝缘体的制造方法。 将芯体引入绝缘刚性材料的管中，同时留下分开管的芯和内壁的小的周向空间。 将粘合剂在超压下引入管的内部并且在管的内部保持过压的同时固化。

公开(公告)号：US07939752B2

公开(公告)日：2011-05-10

申请号：US12297765

申请日：2007-04-10

Applicant: Peter Sjöberg ,  Gerd A. Chalikiá ,  Roger Hedlund

Inventor： Peter Sjöberg ,  Gerd A. Chalikiá ,  Roger Hedlund

IPC: H01B7/17

CPC classification number: H01B17/32 ,  H01B17/34 ,  H01B17/36 ,  H02G15/06

Abstract: An elongated member including an outer sleeve-like rigid insulator shell surrounding a high voltage conductor extending in the longitudinal direction of the shell and a gap inside the shell next to an internal wall of the shell at least partially surrounding the conductor and filled with a medium including a material of with electrically insulating properties. The medium is formed by an electrically insulating material including hollow spaces at least partially filled with gas. The material is adapted to expand upon a temperature rise thereof by reversibly compressing the hollow spaces and reducing the volume thereof.

Abstract translation: 细长构件包括围绕围绕壳体的纵向方向延伸的高压导体的外套筒状刚性绝缘体壳体，以及壳体内部的与壳体内壁相邻的间隙，至少部分地围绕导体并填充介质 包括具有电绝缘性能的材料。 介质由电绝缘材料形成，其包括至少部分地填充有气体的中空空间。 该材料适于通过可逆地压缩中空空间并减小其体积而在其温度升高上膨胀。