Method for shielding the magnetic field generated by an electrical power transmission line and electrical power transmission line so shielded
    3.
    发明授权

    公开(公告)号:US07622669B2

    公开(公告)日:2009-11-24

    申请号:US10565938

    申请日:2003-07-30

    IPC分类号: H01B11/06

    CPC分类号: H02G9/04 H02G9/065

    摘要: A method for shielding the magnetic field generated by an electrical power transmission line and an electrical power transmission line so shielded. The electrical power transmission line has at least one electrical cable and at least one shielding element made of ferromagnetic material arranged in a radially outer position with respect to the at least one cable which shielding element has a base and a cover. The line also has a supporting element coupled to at least the base of the shielding element. In particular, the ferromagnetic material of the shielding element is selected from grain oriented silicon steel, preferably containing a silicon content between about 1% and about 5%, non-grain oriented silicon steel, Permalloyè and Supermalloyè.

    摘要翻译: 一种用于屏蔽由电力传输线和被屏蔽的电力传输线产生的磁场的方法。 电力传输线具有至少一根电缆和至少一个由铁磁材料制成的屏蔽元件,该屏蔽元件相对于至少一根电缆布置在径向外部位置,该屏蔽元件具有基座和盖。 该线还具有耦合到至少屏蔽元件的基部的支撑元件。 特别地,屏蔽元件的铁磁材料选自晶粒取向硅钢,优选含有约1%至约5%的非晶取向硅钢,Permalloyè和Supermalloyè之间的硅含量。

    Composition having low thermal resistivity and method for laying underground cables for carrying electrical energy
    5.
    发明授权
    Composition having low thermal resistivity and method for laying underground cables for carrying electrical energy 有权
    具有低热阻的组合物和用于铺设用于承载电能的地下电缆的方法

    公开(公告)号:US06644891B2

    公开(公告)日:2003-11-11

    申请号:US09726414

    申请日:2000-12-01

    IPC分类号: F16L5915

    摘要: A system for carrying electrical energy in connections in underground cables. In particular, it relates to a method of laying cables and a trench filler having a low thermal resistivity, used for laying underground cables for carrying electrical energy. More particularly, it relates to the use of an inert filler to be disposed in an area around the cables or the parts of the system, such as joints, which are disposed underground. The method of laying cables disposed in a trench includes: removing the original soil to prepare the trench; disposing a first layer of a first composition in the trench; disposing the cables on top of the first layer; disposing a second layer of the first composition on top of the cables; disposing a third layer on top of the second layer formed by a second composition to fill the trench. The first composition comprises: 60-90% by weight of crushed sand; 4-15% by weight of silt; 2-12% by weight of cement; and 4-15% by weight of water.

    摘要翻译: 在地下电缆连接中承载电能的系统。 特别地,本发明涉及一种铺设电缆的方法和具有低热阻的沟槽填料,用于铺设用于承载电能的地下电缆。 更具体地,涉及使用惰性填料来设置在电缆或系统的诸如接地处的地下部分的区域中。 布置在沟槽中的敷设电缆的方法包括:去除原始土壤以准备沟槽; 在沟槽中设置第一组合物的第一层; 将电缆布置在第一层的顶部; 将第一组合物的第二层设置在电缆的顶部上; 在由第二组合物形成的第二层的顶部上设置第三层以填充沟槽。 第一组合物包括:60-90重量%的碎砂; 4-15重量%的淤泥; 水泥2-12%; 和4-15重量%的水。

    Method of screening the magnetic field generated by an electrical power transmission line, and electrical power transmission line
    6.
    发明授权
    Method of screening the magnetic field generated by an electrical power transmission line, and electrical power transmission line 失效
    筛选由电力输电线路产生的磁场和电力输电线路的方法

    公开(公告)号:US06806418B2

    公开(公告)日:2004-10-19

    申请号:US10296615

    申请日:2003-05-01

    IPC分类号: H01B734

    CPC分类号: H02G9/06

    摘要: A method for screening the magnetic field generated by an electrical power transmission line having at least one electrical cable. The cables may be inserted into a conduit having at least one layer of non-grain-oriented ferromagnetic material, having a magnetic curve with a maximum value of relative magnetic permeability (&mgr;max).

    摘要翻译: 一种用于筛选由具有至少一根电缆的电力传输线产生的磁场的方法。 电缆可以插入到具有至少一层非晶粒定向铁磁材料的导管中,该层具有最大相对磁导率(mumax)的磁曲线。

    Continuous process for manufacturing electrical cables
    7.
    发明申请
    Continuous process for manufacturing electrical cables 审中-公开
    制造电缆的连续工艺

    公开(公告)号:US20070051450A1

    公开(公告)日:2007-03-08

    申请号:US10565299

    申请日:2003-12-18

    IPC分类号: H01B13/26

    摘要: A process for manufacturing an electric cable. In particular, the process includes the steps of: a) feeding a conductor at a predetermined feeding speed; b) extruding a thermoplastic insulating layer in a radially outer position with respect to the conductor; c) cooling the extruded insulating layer at a temperature not higher than 70° C.; and d) forming a circumferentially closed metallic screen around the extruded insulating layer. The process is carried out continuously, i.e., the time occurring between the end of the cooling step and the beginning of the screen forming step is inversely proportional to the feeding speed of the conductor.

    摘要翻译: 电缆制造工艺。 特别地,该方法包括以下步骤:a)以预定的进料速度供给导体; b)在相对于导体的径向外部位置挤出热塑性绝缘层; c)在不高于70℃的温度下冷却挤出的绝缘层; 以及d)在所述挤压绝缘层周围形成周向封闭的金属屏蔽。 该过程是连续进行的,即在冷却步骤结束和丝网形成步骤开始之间发生的时间与导体的进给速度成反比。

    SYSTEM AND METHOD FOR COOLING A POWER TRANSMISSION SYSTEM
    9.
    发明申请
    SYSTEM AND METHOD FOR COOLING A POWER TRANSMISSION SYSTEM 有权
    用于冷却电力传输系统的系统和方法

    公开(公告)号:US20150207303A1

    公开(公告)日:2015-07-23

    申请号:US14351312

    申请日:2011-10-27

    IPC分类号: H02B1/56

    摘要: A cooling system for cooling a power transmission system that includes a cable configured to carry a current corresponding to a transported electric power may include: a cooling device configured to remove heat from the power transmission system; a power supply system configured to extract a power fraction from the cable and configured to supply the cooling device with the power fraction; and a control unit configured to control an amount of the extracted power fraction in response to a parameter of the electric power. When the parameter is higher than a threshold, the extracted power fraction is equal to a first value that depends on the electric power carried in the cable through a first function. When the parameter is lower than the threshold, the extracted power fraction is equal to a second value that depends on the electric power carried in the cable through a second function.

    摘要翻译: 一种用于冷却电力传输系统的冷却系统,包括配置成承载与传输电力相对应的电流的电缆,可以包括:冷却装置,其被配置为从所述电力传输系统移除热量; 电源系统,其被配置为从所述电缆提取功率部分并且被配置为向所述冷却装置供应所述功率部分; 以及控制单元,被配置为响应于所述电力的参数来控制所提取的功率分数的量。 当参数高于阈值时,提取的功率分数等于取决于通过第一功能在电缆中承载的电力的第一值。 当参数低于阈值时,提取的功率分数等于取决于电缆中通过第二功能承载的电力的第二值。

    Shielding of high voltage cables
    10.
    发明授权
    Shielding of high voltage cables 有权
    屏蔽高压电缆

    公开(公告)号:US08895851B2

    公开(公告)日:2014-11-25

    申请号:US13641798

    申请日:2010-04-23

    申请人: Paolo Maioli

    发明人: Paolo Maioli

    CPC分类号: H01B9/02 H02G9/02 H02G9/10

    摘要: A magnetically shielded cable arrangement, comprising at least two AC cables (201-203) comprising a spaced portion extending between two close portions of parallel cables, such spaced portion sequentially including a diverging portion, a widely spaced portion and a converging portion, and an EMF shielding system (1) laid over said at least two AC cables (201-203), said EMF shielding system (1) comprising a conductor (2, 3, 11, 12) having two branches (2, 3) forming a median portion (4, 5) and end portions (7-10), the median portion width being equal to or larger than the AC cables distance in the widely spaced portion and the width at the extremities of the end portions (7-10) being larger than the AC cables distance in the close portions and smaller than the AC cables distance in the widely spaced portion, said conductor (2, 3, 11, 12) comprising an inner electrical path (2a, 3a) and an outer electrical path (2e, 3e) connected together (11, 12) at relevant longitudinal ends.

    摘要翻译: 一种磁屏蔽电缆布置,包括至少两个交流电缆(201-203),其包括在平行电缆的两个闭合部分之间延伸的间隔部分,所述间隔部分依次包括发散部分,宽间隔部分和会聚部分,以及 EMF屏蔽系统(1)布置在所述至少两个AC电缆(201-203)上,所述EMF屏蔽系统(1)包括具有形成中间值的两个分支(2,3)的导体(2,3,11,12) 部分(4,5)和端部(7-10),所述中间部分宽度等于或大于所述宽间隔部分中的AC电缆距离和所述端部(7-10)的末端处的宽度为 大于紧密部分中的AC电缆距离,并且小于在宽间隔部分中的AC电缆距离,所述导体(2,3,11,12)包括内部电路(2a,3a)和外部电气路径( 2e,3e)在相关纵向端连接在一起(11,12)。