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81 条记录 (耗时 0.018 秒)

    Spark gap for achieving arc elongation and compression without the use of supplementary magnetic means
    45.
    发明授权
    Spark gap for achieving arc elongation and compression without the use of supplementary magnetic means 失效
    无需使用辅助磁体来实现电弧拉伸和压缩的火花隙

    公开(公告)号：US4052639A

    公开(公告)日：1977-10-04

    申请号：US648758

    申请日：1976-01-13

    申请人： Francis V. Cunningham

    发明人： Francis V. Cunningham

    IPC分类号： H01T1/04 ,  H01J17/40 ,  H01T4/16 ,  H01J17/00 ,  H01J21/00

    CPC分类号： H01J17/40 ,  H01T4/16

    摘要： A current limiting spark gap for use in a valve type lightning or surge arrester includes a plurality of identical, mirror-image insulating gap plates assembled together to define arc elongation and cooling chambers between each pair of adjacent gap plates. Conductive electrodes are disposed on opposite sides of each gap plate. Dielectric rods extend through holes formed in the gap plates to vertically and horizontally align the gap plates in a vertical stack and to define and maintain the gap spacing between a pair of electrodes in each arc chamber. The spark gap utilizes only the electrode and arc chamber configurations to cause a follow current arc to move in each arc chamber to increase the length of the arc and to compress the arc against cooling walls and surfaces of the arc chambers. The electrode and arc chamber configurations achieve greater arc elongation and compression, and resultant cooling, to enhance follow current limitation. The follow current arc is elongated and compressed from a point of arc initiation through a projected angle exceeding 200.degree..

    Discharge gap device
    46.
    发明授权
    Discharge gap device 失效
    放电间隙装置

    公开(公告)号：US4023076A

    公开(公告)日：1977-05-10

    申请号：US624235

    申请日：1975-10-20

    申请人： Yotsuo Ishida ,  Hiroshi Kuwahara

    发明人： Yotsuo Ishida ,  Hiroshi Kuwahara

    IPC分类号： H02H7/16 ,  H01T1/04 ,  H01T4/16 ,  H02H3/20

    CPC分类号： H01T4/16

    摘要： Two main toroidal electrodes are supported to individual support plates to oppose to each other. A rod-shaped consumable electrode disposed on one of the support plates loosely extends through the central opening of the toroidal electrode supported to the same support plate as the consumable electrode and terminates within the central opening of the other toroidal electrode. The consumable electrode opposes to a similar consumable electrode disposed on the other support plate. All the electrodes are higher in electric resistivity than the support plates and may be formed of carbon.

    摘要翻译： 两个主环形电极被支撑到单独的支撑板上以彼此相对。 设置在一个支撑板上的棒状可消耗电极松散地延伸穿过支撑在与可消耗电极相同的支撑板上的环形电极的中心开口，并终止在另一个环形电极的中心开口内。 消耗电极与设置在另一个支撑板上的类似的可消耗电极相对。 所有电极的电阻率高于支撑板，并且可以由碳形成。

    Spark gap device for lightning arrester
    47.
    发明授权
    Spark gap device for lightning arrester 失效
    用于闪电雷达的SPARK GAP设备

    公开(公告)号：US3798498A

    公开(公告)日：1974-03-19

    申请号：US3798498D

    申请日：1970-12-14

    申请人： MITSUBISHI ELECTRIC CORP

    发明人： YAMADA N ,  NAGAI N ,  TADA S

    IPC分类号： H01T1/04 ,  H02H7/24

    CPC分类号： H01T1/04

    摘要： Two discal electrodes are eccentrically and rotatably mounted on each of two metallic rods in superposed relationship with each other to form therebetween discharge gaps in parallel relationship having uniform and nonuniform electric fields. Recesses are formed on those portions of arc quenching plates facing the spark gaps.

    摘要翻译： 两个圆形电极以两个重叠的关系偏心地并且可旋转地安装在两个金属棒中，以形成具有均匀和不均匀电场的平行关系的放电间隙。 在面向火花间隙的电弧淬火板的那些部分上形成凹部。

    Lightning arrester and gap unit therefor
    48.
    发明授权
    Lightning arrester and gap unit therefor 失效
    闪电雷达及其空调

    公开(公告)号：US3678340A

    公开(公告)日：1972-07-18

    申请号：US3678340D

    申请日：1970-01-07

    申请人： OHIO BRASS CO

    发明人： KALB JOHN W

    IPC分类号： H01T1/04 ,  H02H9/06

    CPC分类号： H01T1/04

    摘要： A lightning arrester particularly adapted for extra high voltage AC systems and high voltage DC systems comprising a series of arc gap units and coil assemblies for moving the arcs outwardly. The gap units and coil assemblies are connected in series between a line of the system to be protected and ground without the intervention of series valve blocks. The gap units develop arc voltages greater than the system line to ground voltage so that the gaps can interrupt the power follow current, but the total of the gap voltage and coil assembly voltage does not exceed the allowable protective level at any time. The gap units are designed so that the arcs flutter so as to minimize localized overheating and erosion of the gap plate material.

    摘要翻译： 避雷器特别适用于超高压交流电系统和高压直流系统，包括一系列电弧间隙单元和用于向外移动电弧的线圈组件。 间隙单元和线圈组件串联连接在被保护系统的一条线和地之间，而不需要串联的阀块。 间隙单元产生大于系统线对地电压的电弧电压，使得间隙可以中断功率跟随电流，但是间隙电压和线圈组装电压的总和在任何时间都不超过允许的保护电平。 间隙单元被设计成使得电弧颤动，以最小化间隙板材料的局部过热和侵蚀。

    Spark gap with magnetic blowing of the arc
    49.
    发明授权
    Spark gap with magnetic blowing of the arc 失效
    火焰喷溅与电弧的磁性吹气

    公开(公告)号：US3614536A

    公开(公告)日：1971-10-19

    申请号：US3614536D

    申请日：1970-07-13

    申请人： ASEA AB

    发明人： JOHANSSON BENGT ,  NILSSON ERLAND

    IPC分类号： H01T1/04 ,  H02H9/06

    CPC分类号： H01T1/04

    摘要： A spark gap is formed between two discs of insulating material resistant to the arc and with a space therebetween. Two outer electrodes extend through the space between the discs from one side almost to the other periphery. These electrodes are insulated through most of their length on their outer faces. An intermediate electrode is arranged on the inner wall of the space facing the two outer electrodes and extending angularly a substantial distance around such inside wall. This electrode has a protrusion opposite the space between the outer electrode. The arcs are magnetically drawn into the portions of the space between the electrodes remote from the intermediate electrode and are there extinguished.