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    • 9. 发明授权
    • Device for reducing the radio and audible noise caused by corona on high
voltage electrical installations
    • 用于降低高压电气设备上电晕引起的无线电和可听见噪声的装置
    • US4034154A
    • 1977-07-05
    • US639686
    • 1975-12-11
    • Albert Pierre Marie Lecat
    • Albert Pierre Marie Lecat
    • H01B5/00H01T19/04
    • H01B5/004H01T19/04
    • A device is described for substantially reducing the radio interference and audible noise caused by the corona appearing on the surface of electrically conductive members supplied with a high electric voltage. The device comprises an electrically conductive mounting portion to be mounted on the surface of the live member in electrical contact therewith and at least one electrically conductive projecting portion projecting therefrom in directions substantially normal to said surface of the live member. The end of the projecting portion remote from the mounting portion has a radius of curvature which is small relative to its length, the dimension of the projecting portion being optimized such that, during use of the live member, said end of the projecting portion is located in a well-defined zone of electrical field around the live member where a unique relatively non-disturbing ionization mode is produced. This device is applicable to localized live components or parts such as in high voltage power stations or overhead lines.
    • 描述了用于基本上减少由提供有高电压的导电构件的表面上出现的电晕引起的无线电干扰和可听到噪声的装置。 该装置包括导电安装部分,其安装在与其接触的活动构件的表面上,以及至少一个导电突出部分,其从大致垂直于活动构件表面的方向突出。 远离安装部分的突出部分的端部具有相对于其长度小的曲率半径,突出部分的尺寸被最优化,使得在使用活动构件期间,突出部分的所述端部位于 在活性构件周围的电场的良好限定区域中,其中产生独特的相对不干扰的电离模式。 该装置适用于高压发电站或架空线路上的本地化带电组件或零件。
    • 10. 发明授权
    • Transmission line audible noise and corona reducing device
    • 传输线可听噪声和减少CORONA设备
    • US3825671A
    • 1974-07-23
    • US38621673
    • 1973-08-06
    • POKORNY W
    • POKORNY W
    • H01B5/00H02G7/14H02G7/00
    • H01B5/004H02G7/14Y10S174/12
    • A device for attachment to EHV and UHV transmission line conductors to reduce audible noise and other corona effects. A plurality of metallic rods each having a preformed shape are mounted on a conductor and form one or more cage-like generally elliptical structures. Each rod end portion has a helical shape, and the end portions of a complement of said rods form a cylindrical configuration having an inner diameter generally equal to the outer diameter of the conductor. The rod end portions have sufficient resiliency to wrap about and grip the conductor, eliminating the need of clamps, etc. to retain the elliptical cages thereon. The cages effectively increase the conductor diameter, modify the electrical field pattern about the conductor, and reduce the surface gradient to reduce audible noise and other corona effects.
    • 用于连接到EHV和UHV传输线路导体的装置,以减少可听见的噪音和其他电晕效应。 每个具有预成型形状的多个金属棒安装在导体上并形成一个或多个笼状的大致椭圆形结构。 每个杆端部具有螺旋形状,并且所述杆的互补体的端部形成具有大体上等于导体的外径的内径的圆柱形构造。 杆端部具有足够的弹性来缠绕和夹持导体,消除了夹具等的需要以将椭圆形网笼保持在其上。 保持架有效地增加导体直径,修改导体周围的电场图案,并减少表面梯度,以减少可闻噪声和其他电晕效应。