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公开(公告)号：US07141908B2
公开(公告)日：2006-11-28
申请号：US10204444
申请日：2001-03-01
IPC分类号： H02K1/12
CPC分类号： H02K3/48 , H02K1/165 , H02K2203/15 , Y10S174/19 , Y10S174/20
摘要： In a rotating electrical machine a stator winding is formed of flexible cables inserted in an open stator in the stator core. The stator slots extend from a radially outermost yoke part of the stator core radially inwards towards the rotor, the stator slots being separated by teeth. The stator slots are shaped as double slots with shoulders arranged in the slot walls such that each cable in the winding is secured between the previous cable in the stator slot and, seen from the slot opening, the next shoulder situated outside that particular cable. In a method for manufacturing such a winding the first cable is inserted through the opening of the stator slot and pressed firmly into a cable slot arranged at the bottom of the stator slot and designed to retain the cable when it has been pressed in. A second cable is inserted through the opening of the stator slot and secured between this first cable and an opposing securing shoulder in the wall of the slot, after which a third cable is inserted through the opening in the stator slot and secured between the second cable and a securing shoulder in the slot wall opposite the second cable, and so on.
摘要翻译： 在旋转电机中，定子绕组由插入定子芯中的开式定子的柔性电缆形成。 定子槽从定子芯的径向最外侧的磁轭部分径向向内朝向转子延伸，定子槽由齿分开。 定子槽形成为双槽，其中肩部布置在槽壁中，使得绕组中的每个电缆固定在定子槽中的先前电缆之间，并且从槽开口处看到位于该特定电缆外部的下一个肩部。 在制造这种绕组的方法中，第一缆线通过定子槽的开口被插入，并被牢固地压入布置在定子槽底部的电缆槽中，并被设计成当电缆被压入时保持电缆。 电缆穿过定子槽的开口插入并且固定在该第一电缆和槽的壁中的相对的固定肩之间，之后第三电缆穿过定子槽中的开口插入并固定在第二电缆和第二电缆之间 将肩部固定在与第二根电缆相对的槽壁中，等等。
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2.发明授权Current transmission system for HVDC including a solid insulator having a surface coating of resin containing chromium oxide or iron oxide 失效用于HVDC的电流传输系统包括具有包含氧化铬或氧化铁的树脂表面涂层的固体绝缘体
公开(公告)号：US4688142A
公开(公告)日：1987-08-18
申请号：US918495
申请日：1986-10-14
申请人： Arne Hjortsberg , Goran Holmstrom , Erik sterlund
发明人： Arne Hjortsberg , Goran Holmstrom , Erik sterlund
CPC分类号： H02G5/063
摘要： A system for HVDC transmission comprises a conductor, stressed by d.c. voltage, which is insulated from a surrounded grounded casing by pressurized SF.sub.6 gas and along part of its length by at least one solid insulator supporting the conductor in the casing and in contact with the gas. By designing the solid insulator as a core of solid insulating material and a coating, provided thereon, with a high surface resistance, it is possible considerably to reduce the dimensions of the casing. The coating consists of a resinous binder containing a powdered filler in the form of chromium oxide or iron oxide, or a mixture of these substances. The coating preferably has a surface resistance between 10.sup.12 and 10.sup.18 ohm/.quadrature. at an electric field strength of 1 kV/mm.
摘要翻译： 用于HVDC传输的系统包括一个由d.c.强调的导体。 电压，其通过加压的SF 6气体与包围的接地壳体绝缘，并且通过至少一个支撑壳体中的导体并与气体接触的固体绝缘体沿其长度的一部分绝缘。 通过设计固体绝缘体作为固体绝缘材料的核心和在其上提供的具有高表面电阻的涂层，可能显着地减小壳体的尺寸。 涂层由含有氧化铬或氧化铁形式的粉末填料或这些物质的混合物的树脂粘合剂组成。 该涂层的电场强度优选在10 -6欧姆/平方厘米之间，电场强度为1千伏/毫米。
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公开(公告)号：US20050029889A1
公开(公告)日：2005-02-10
申请号：US10204444
申请日：2001-03-01
CPC分类号： H02K3/48 , H02K1/165 , H02K2203/15 , Y10S174/19 , Y10S174/20
摘要： In a rotating electrical machine a stator winding is formed of flexible cables inserted in an open stator in the stator core. The stator slots extend from a radially outermost yoke part of the stator core radially inwards towards the rotor, the stator slots being separated by teeth. The stator slots are shaped as double slots with shoulders arranged in the slot walls such that each cable in the winding is secured between the previous cable in the stator slot and, seen from the slot opening, the next shoulder situated outside that particular cable. In a method for manufacturing such a winding the first cable is inserted through the opening of the stator slot and pressed firmly into a cable slot arranged at the bottom of the stator slot and designed to retain the cable when it has been pressed in. A second cable is inserted through the opening of the stator slot and secured between this first cable and an opposing securing shoulder in the wall of the slot, after which a third cable is inserted through the opening in the stator slot and secured between the second cable and a securing shoulder in the slot wall opposite the second cable, and so on.
摘要翻译： 在旋转电机中，定子绕组由插入定子芯中的开式定子的柔性电缆形成。 定子槽从定子芯的径向最外侧的磁轭部分径向向内朝向转子延伸，定子槽由齿分开。 定子槽形成为双槽，其中肩部布置在槽壁中，使得绕组中的每个电缆固定在定子槽中的先前电缆之间，并且从槽开口处看到位于该特定电缆外部的下一个肩部。 在制造这种绕组的方法中，第一缆线通过定子槽的开口被插入，并被牢固地压入布置在定子槽底部的电缆槽中，并被设计成当电缆被压入时保持电缆。 电缆穿过定子槽的开口插入并且固定在该第一电缆和槽的壁中的相对的固定肩之间，之后第三电缆穿过定子槽中的开口插入并固定在第二电缆和第二电缆之间 将肩部固定在与第二根电缆相对的槽壁中，等等。
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4.发明授权Electrical insulating material comprising an insulating layer in the form of an organic polymer 失效在有机聚合物形式中包含绝缘层的电绝缘材料
公开(公告)号：US5061554A
公开(公告)日：1991-10-29
申请号：US171440
申请日：1988-03-21
CPC分类号： C08K3/22 , H01B3/30 , Y10T428/256 , Y10T428/257 , Y10T428/2947 , Y10T428/2949 , Y10T428/2958 , Y10T428/31609 , Y10T428/31721 , Y10T428/31725 , Y10T428/31786 , Y10T442/2475
摘要： A tape-formed or sheet-formed insulating material for use in windings and coils of electrical machines includes an insulating layer in the form of a homogeneous film of an organic polymer or in the form of a felt of a paper of fibres of an organic polymer and a protective layer coated on at least one side of the insulating layer which protects the insulating layer against degradation caused by corona. The protective layer comprises an organic polymer containing at least 10 percent by volume of a powdered filler in the form of chromium oxide, iron oxide or a mixture of chromium oxide and iron oxide. The filler preferably has an intrinsic resistivity of 10.sup.4 -10.sup.8 ohm m. The thickness of the protective layer and the total thickness of the protective layer, respectively, are preferably smaller than the thickness of the insulating layer and the resistivity of the protective layer is preferably in excess of 10.sup.10 ohm m.
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公开(公告)号：US4935302A
公开(公告)日：1990-06-19
申请号：US171438
申请日：1988-03-21
CPC分类号： H01B3/30 , C08K3/22 , Y10T428/2947 , Y10T428/2949 , Y10T428/2958
摘要： An electrical conductor is provided with an electrical insulation (11) surrounding the conductor (10) and a surrounding protective layer (12) which protects the insulation against degradation caused by corona. The protective layer consists of an organic polymer containing at least 10 percent by volume of a powdered filler in the form of chromium oxide, iron oxide, or a mixture of chromium oxide and iron oxide. The filler preferably has an intrinsic resistivity of 10.sup.4 -10.sup.8 ohm m. The thickness of the protective layer is preferably smaller than the thickness of the underlying insulation (11) and its resistivity preferably exceeds 10.sup.10 ohm m. The conductor is used, among other things, in windings and coils for electrical machines.
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6.发明授权
公开(公告)号：US4806806A
公开(公告)日：1989-02-21
申请号：US101366
申请日：1987-09-25
CPC分类号： H02K3/32 , H02K15/12 , H02K3/30 , Y10T428/251
摘要： A coil for arrangement in slots in a stator or rotor of an electrical machine, in particular a high voltage coil, comprising a bundle (17) of a plurality of conductors (18) located adjacent to each other and provided with a conductor insulation (19) for insulation of the conductors from each other as well as a main insulation (14) surrounding the bundle for insulation of the bundle against the machine slot. The main insulation consists of a wrapping of a tape- or sheet-formed insulating material wound in several layers around the bundle and comprising a layer with small mica flakes which, as well as the spaces between layers of mica flakes in the wrapping, contains a cured impregnating resin. At least that part of the impregnating resin located in the spaces between mica layers contains particles of a filler with an intrinsic thermal conductivity of at least 5 W/mK, such as aluminium oxide or boron nitride, and with a grain size of the particles of 0.1-15 .mu.m in at least 90 percent of the filler.
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7.发明授权公开(公告)号：US06972505B1
公开(公告)日：2005-12-06
申请号：US09147325
申请日：1997-05-27
申请人： Mats Leijon , Peter Templin , Bengt Rydholm , Lars Gertmar , Bertil Larsson , Bengt Rothman , Peter Carstensen , Leif Johansson , Claes Ivarson , Bo Hernnas , Goran Holmstrom , Bengt Goran , Alberti Backlund
发明人： Mats Leijon , Peter Templin , Bengt Rydholm , Lars Gertmar , Bertil Larsson , Bengt Rothman , Peter Carstensen , Leif Johansson , Claes Ivarson , Bo Hernnas , Goran Holmstrom , Bengt Goran , Alberti Backlund
CPC分类号： H01F27/288 , H02K3/28 , H02K3/40 , H02K3/48 , H02K9/19 , H02K15/00 , H02K2203/15 , Y10S174/20 , Y10S174/27 , Y10S174/33
摘要： A rotating electrical machine and method for making the machine, where the machine includes a high-voltage stator winding and elongated support devices for supporting the winding. The machine and method employ an arrangement of cable that is made of inner conductive strands, covered with a first semiconducting layer, which is covered with an insulating layer, which is covered with a second semiconducting layer. The cable is wound in slots in the stator such that separate cable lead-throughs are positioned in specific arrangements with respect to each other and in slots of the stator. The arrangement of the cable in the stator protects the integrity of the respective components in the cable and particularly the second semiconducting layer.
摘要翻译： 一种用于制造机器的旋转电机和方法，其中机器包括用于支撑绕组的高压定子绕组和细长支撑装置。 机器和方法采用由内部导电线制成的电缆布置，被覆盖有覆盖有第二半导体层的绝缘层的第一半导电层覆盖。 电缆缠绕在定子中的槽中，使得单独的电缆引线相对于彼此和定子的狭槽以特定布置定位。 电缆在定子中的布置保护了电缆，特别是第二半导体层中相应部件的完整性。
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公开(公告)号：US5608597A
公开(公告)日：1997-03-04
申请号：US432974
申请日：1995-05-01
申请人： Goran Holmstrom , Jan Lundquist , H.ang.kan Wieck
发明人： Goran Holmstrom , Jan Lundquist , H.ang.kan Wieck
摘要： A surge arrester includes a stack of varistor blocks (10), for example of zinc oxide, arranged between two end electrodes (11, 12) in an elongated insulating casing (23) of polymeric material, for example silicone rubber. The varistor blocks and the electrodes are axially surrounded by compression loops (14-17) of insulating material for providing the necessary contact pressure between the different elements (10, 11, 12) in the varistor stack. The varistor stack (10) and the compression loops are radially surrounded by a bursting-preventive bandage (21) of insulating material with openings (22) for pressure relief in case of internal short circuit in the surge arrester.
摘要翻译： 电涌放电器包括布置在聚合物材料的细长绝缘壳体（23）中的两个端电极（11,12）之间的一组压敏电阻块（10），例如氧化锌，例如硅橡胶。 压敏电阻块和电极由绝缘材料的压缩环（14-17）轴向包围，以在压敏电阻堆叠中的不同元件（10,11,12）之间提供必要的接触压力。 压敏电阻堆叠（10）和压缩环路由具有用于在电涌放电器内部短路的情况下用于压力释放的开口（22）的绝缘材料的防爆绷带（21）径向包围。
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公开(公告)号：US4598573A
公开(公告)日：1986-07-08
申请号：US737475
申请日：1985-05-24
申请人： Carl Bergman , Goran Holmstrom , Arne Nygard
发明人： Carl Bergman , Goran Holmstrom , Arne Nygard
CPC分类号： B30B15/061
摘要： A press is adapted for the press tool it is to operate, by means of at least one pad of force-transmitting material formed in situ on a surface adapted to transmit the forming force to the press tool. The pad is formed by locating a tool substitute in the space intended for the tool, defining at least one volume between the tool substitute and the said surface adapted to transmit the forming force with a sealing means and injecting the pad forming material in liquid state into the said volume to allow the same to harden there preferably under a force equivalent to that which will be used in forming a blank when the substitute tool is replaced by the press tool.
摘要翻译： 通过至少一个力传递材料垫在适于将成形力传递到压制工具的表面上的原地形成的压力机适用于其操作的压力机。 衬垫通过将工具替代物定位在用于工具的空间中而形成，其在工具替代物和所述表面之间限定至少一个容积，其适于用密封装置传递成形力，并将衬垫形成材料以液态注入到 所述体积允许其相同地在相当于当替代工具被压制工具代替时将用于形成坯料的力的同时硬化。
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