IMPROVED LIGHTNING CONDUCTOR AND METHOD
    1.
    发明申请
    IMPROVED LIGHTNING CONDUCTOR AND METHOD 审中-公开
    改进的雷击导体和方法

    公开(公告)号:WO1998000898A1

    公开(公告)日:1998-01-08

    申请号:PCT/AU1997000413

    申请日:1997-07-01

    CPC classification number: H02G13/00 H02G13/20 H02G13/80

    Abstract: An improved lightning conductor (1) is provided which has an earthed conductor element (11) surrounded by a rounded conductive surface element (12), a high impedance bleed circuit (17) connected between the conductive surface element (12) and earth, and a triggering electrode (14) positioned adjacent or above the upper end of the conductor element (11) and connected electrically to the conductive surface element (12). The conductor element (11) is preferably a tube with the triggering electrode (14) disposed on the central axis of the tube. An insulating spacer (15) is provided between the tube (11) and the triggering electrode (14). In use, the rounded surface element (12) minimises the produciton of corona and the high impedance bleed circuit (17) delays the production of a triggering arc between the triggering electrode (14) and the earthed conductor (12) until the rapid approach of a lightning down leader. The triggering arc, which occurs at the highest point of the lightning conductor (10), causes a stepped increase in the near electric field above the conductor (10) to provide ideal conditions for upleader initiation and propagation.

    Abstract translation: 提供了一种改进的避雷针(1),其具有由圆形导电表面元件(12)围绕的接地导体元件(11),连接在导电表面元件(12)和地之间的高阻抗放电电路(17),以及 位于所述导体元件(11)的上端附近或上方并且与导电表面元件(12)电连接的触发电极(14)。 导体元件(11)优选地是具有设置在管的中心轴线处的触发电极(14)的管。 在管(11)和触发电极(14)之间设置绝缘间隔物(15)。 在使用中,圆形表面元件(12)使电晕的产生最小化,并且高阻抗放电电路(17)延迟触发电极(14)和接地导体(12)之间的触发电弧的产生,直到快速接近 一个闪电下来的领导者。 发生在避雷针(10)的最高点处的触发电弧导致导体(10)上方的近电场的阶梯式增加,以提供用于向上引导和传播的理想条件。

    IMPROVEMENTS IN TRANSIENT OVERVOLTAGE AND LIGHTNING PROTECTION OF POWER CONNECTED EQUIPMENT
    2.
    发明申请
    IMPROVEMENTS IN TRANSIENT OVERVOLTAGE AND LIGHTNING PROTECTION OF POWER CONNECTED EQUIPMENT 审中-公开
    电力连接设备的瞬态过电压和雷击保护的改进

    公开(公告)号:WO1998045919A1

    公开(公告)日:1998-10-15

    申请号:PCT/AU1997000814

    申请日:1997-11-28

    Abstract: An overvoltage protection circuit is provided for protecting electrical equipment from transients on power lines (41, 42). The circuit has a string of series-connected silicon avalanche diodes (SADs) (40) connected across the power lines (41, 42) to provide an initial clamping threshold before energy-absorbing modules (43a, 43b, 43c) come on line to provide secondary clamping. The modules (43a, 43b, 43c) include a number of metal oxide varistors (MOVs) (44) connected in parallel and a switching device in the form of a gas arrester (45) connected in series with the MOVs (44). A resistance (46) is connected in parallel with the gas arrester (45) to form a high pass filter with the natural capacitance of the MOVs (44). This maintains the voltage across the resistance (46) well below the switch operating level during normal conditions and enables a component such as a 230 V fast acting gas arrester (45) to be used. In an alternative embodiment, the gas arrester (45) may be replaced by a solid state swich, such as a Sidator or a Triac.

    Abstract translation: 提供过电压保护电路用于保护电气设备免受电力线(41,42)上的瞬变。 电路具有串联连接的硅雪崩二极管(SAD)串联连接在电源线(41,42)之间,以在能量吸收模块(43a,43b,43c)上线之前提供初始钳位阈值 提供二次夹紧。 模块(43a,43b,43c)包括并联连接的多个金属氧化物变阻器(MOV)(44)和与MOV(44)串联连接的形成有气体避雷器(45)形式的开关装置。 电阻(46)与气体放电器(45)并联连接,以形成具有MOV(44)的自然电容的高通滤波器。 这在正常条件下将电阻(46)的电压保持在低于开关工作电平的电压(46),并且使得能够使用诸如230V快速作用气体避雷器(45)的部件。 在替代实施例中,气体避雷器(45)可以由诸如Sidator或Triac的固态开关代替。

    OVERVOLTAGE PROTECTION SPARK GAPS AND TRANSFORMERS
    3.
    发明申请
    OVERVOLTAGE PROTECTION SPARK GAPS AND TRANSFORMERS 审中-公开
    过电压保护火花和变压器

    公开(公告)号:WO1998010498A1

    公开(公告)日:1998-03-12

    申请号:PCT/AU1997000567

    申请日:1997-09-03

    CPC classification number: H01T4/08 H01F19/00 H01F2038/006

    Abstract: The present invention relates to the technology of igniting spark gaps, particularly lightning arresters. The present invention also relates to lightning protection and transient protection. The present invention has many applications, such as electrical transmission lines, electrical supplies and sources, and telecommunications. One aspect of the present invention is directed to using a matrix transformer for the triggering of spark gaps. In a further aspect of the present invention the secondary conductor of the matrix transformer is folded back on itself so that, in the saturated mode, the magnetic linkage between the forward and the reverse section will act to further reduce the inductance. In a still further aspect of the present invention, there is provided a spark gap electrode, comprising at least two frustro conical sections mutually opposed, and being spaced by an insulative material, the sections having a hollow therethrough, into which a conductor can be placed.

    Abstract translation: 本发明涉及点火火花间隙的技术,特别是避雷器。 本发明还涉及防雷和瞬态保护。 本发明具有许多应用,例如电力传输线,电源和电源以及电信。 本发明的一个方面涉及使用矩阵变压器来触发火花隙。 在本发明的另一方面,矩阵变压器的次级导体自身折回,使得在饱和模式中,正向和反向部分之间的磁连接将起到进一步降低电感的作用。 在本发明的另一方面,提供了一种火花隙电极,包括至少两个彼此相对的截头圆锥形部分,并且由绝缘材料间隔开,所述部分具有中空的中空部分,导体可以放在其中 。

    AN IMPROVED LIGHTNING DOWNCONDUCTOR
    4.
    发明申请
    AN IMPROVED LIGHTNING DOWNCONDUCTOR 审中-公开
    改进的闪电导体

    公开(公告)号:WO1998018186A1

    公开(公告)日:1998-04-30

    申请号:PCT/AU1997000696

    申请日:1997-10-16

    CPC classification number: H01B9/027 H02G13/00 H02G13/80

    Abstract: A lightning downconductor (9) forming part of a lightning protection system, the downconductor (9) has an upper end connected to a lightning collector (10) through an upper termination device (11) and a lower end connected to an earthing system (15) through a lower termination (14). The downconductor (9) comprises an inner electrical conductor (3), an insulating layer (5) surrounding the inner electrical conductor (3), a resistive semi-conductive layer (6) surrounding the insulating layer (5) and a conductive layer (7) surrounding the resistive semi-conductive layer (6). A length of the conductive layer (7) is omitted or removed from the upper end of the downconductor (9) adjacent the upper termination device (11) to expose the resistive semi-conductive layer (6) as an outer layer of the downconductor (9).

    Abstract translation: 一个构成防雷系统一部分的雷电下导体(9),下导体(9)的上端通过上端接装置(11)连接到集电器(10),下端连接到接地系统(15) )通过下端接(14)。 下导体(9)包括内电导体(3),围绕内电导体(3)的绝缘层(5),围绕绝缘层(5)的电阻半导体层(6)和导电层 7)围绕电阻半导电层(6)。 导电层(7)的长度从与上端接装置(11)相邻的下导体(9)的上端被省略或去除,以暴露作为下导体的外层的电阻半导体层(6) 9)。

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