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    Current limiting spark gap for achieving arc elongation, division and compression without the use of supplementary magnetic means
    1.
    发明授权
    Current limiting spark gap for achieving arc elongation, division and compression without the use of supplementary magnetic means 失效
    用于实现电弧伸长，分割和压缩而不使用辅助磁性装置的限流火花隙

    公开(公告)号：US4191908A

    公开(公告)日：1980-03-04

    申请号：US967906

    申请日：1978-12-11

    申请人： Francis V. Cunningham

    发明人： Francis V. Cunningham

    IPC分类号： H01T1/04 ,  H01J17/00 ,  H01J21/00

    CPC分类号： H01T1/04 ,  H01C7/12

    摘要： A current limiting spark gap for use in a high voltage valve type lightning or surge arrester includes a plurality of insulating gap plates assembled together in a vertical stack to define a generally horizontally extending arc elongation and cooling chamber between adjacent plates. Series gap electrodes are disposed along opposite sides of each plate and are double electrodes formed by a unitary piece of wire preformed to slide into position onto each plate. A gap spacer is provided in each arc chamber interfitting with the series gap electrodes and the insulating plates for accurately defining and enclosing the series gap and for maintaining the spark gap as an assembly. A new and improved spark initiator with two, resilient, ionizing arms is provided in each arc chamber for consistently achieving low impulse voltage sparkover. One or more auxiliary electrodes may be provided in each arc chamber to enhance power follow current limitation by dividing the arc into two or more arc portions and by rapidly elongating and moving the arc portions to the cooling wall portions of each arc chamber. The air gaps in each arc chamber formed between the gap electrodes converge to first air gaps of closest electrode spacing and then diverge along extended arc surfaces of the electrodes to and beyond where the spacing between extended arc surfaces is at least equal to three times the closest spacing.

    摘要翻译： 用于高压阀式雷击或避雷器的限流火花隙包括多个绝缘间隙板，它们组装在垂直叠层中，以在相邻的板之间限定大致水平延伸的弧伸长和冷却室。 系列间隙电极沿着每个板的相对侧设置，并且是由预先形成为在每个板上滑动到位的整体丝线形成的双电极。 在每个电弧室中与间隙电极和绝缘板相配合的间隙隔离件用于精确地限定和封闭串联间隙，并且用于将火花隙保持为组件。 在每个电弧室中提供了一种具有两个弹性电离臂的新型改进的火花发射器，用于始终实现低脉冲电压火花放电。 可以在每个电弧室中设置一个或多个辅助电极，以通过将电弧分成两个或多个弧形部分并通过将弧形部分快速延伸并移动到每个电弧室的冷却壁部分来增强功率的跟随电流限制。 形成在间隙电极之间的每个电弧室中的空气间隙会聚到最接近电极间距的第一气隙，然后沿着电极的延伸弧形表面发散，并延伸至超过其中延伸弧形表面之间的间距至少等于最接近 间距。

    Cut-off chamber of a lightning protector
    2.
    发明授权
    Cut-off chamber of a lightning protector 失效
    防雷器的切断室

    公开(公告)号：US4058848A

    公开(公告)日：1977-11-15

    申请号：US657333

    申请日：1976-02-11

    申请人： Robert Deville

    发明人： Robert Deville

    IPC分类号： H01T1/04 ,  H02H3/22

    CPC分类号： H01T1/04

    摘要： Cut-off chamber of a lightning protector, characterized in that on the one hand, it comprises a wall made of a porous ceramic substance, ensuring the discharge and the cooling of the gases at the periphery of the chamber, at the time of the ignition of an arc between two elctrodes combined in that chamber and that on the other hand, a means for reinforcing the dielectric strength of the wall is arranged perpendicular to the zones subjected to the highest potential gradients.

    摘要翻译： 防雷器的切断室，其特征在于，一方面，其包括由多孔陶瓷物质制成的壁，以确保在点火时在室的周边处的气体的排放和冷却 在该腔室中组合的两个电极之间的弧形，另一方面，用于增强壁的介电强度的装置垂直于经受最高电位梯度的区域布置。

    Spark gap device for lightning arrester
    3.
    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：US3912965A

    公开(公告)日：1975-10-14

    申请号：US43876674

    申请日：1974-02-01

    申请人： YAMADA NAOYA ,  NAGAI NOBUO ,  TADA SHOJI

    发明人： YAMADA NAOYA ,  NAGAI NOBUO ,  TADA SHOJI

    IPC分类号： H01T1/04 ,  H01J1/44 ,  H01J17/04 ,  H01J17/34

    CPC分类号： H01T1/04

    摘要： A spark gap device for a lightning arrester comprising a first spark gap having a uniform electric field characteristic and a second spark gap connected in parallel with the first spark gap and having a nonuniform electric field characteristic. The spark gaps are disposed in a hermetically sealed housing having an electrically negative gas disposed therein. The resultant spark gap device has a substantially constant sparkover voltage charactetistic since a discharge due to a lightning surge voltage always takes place first across the first spark gap and a discharge due to a low frequency voltage always takes place first across the second spark gap.

    Spark gap system for magnetically quenched surge voltage arrester
    4.
    发明授权
    Spark gap system for magnetically quenched surge voltage arrester 失效
    用于磁性电涌电压雷达的火花隙系统

    公开(公告)号：US3670204A

    公开(公告)日：1972-06-13

    申请号：US3670204D

    申请日：1971-07-06

    申请人： BBC BROWN BOVERI & CIE

    发明人： GREUTER ROBERT

    IPC分类号： H01T1/04 ,  H01T4/16 ,  H02H9/06

    CPC分类号： H01T1/04 ,  H01T4/16

    摘要： A spark gap system for a surge voltage arrester of the magnetically quenched type is composed of a stack of superposed plates each of which is provided with a recess which defines an arc chamber and a pair of spaced electrodes therein and between which an arc can be struck and lengthened by the magnetic field. The pairs of electrodes in adjacent arc chambers are electrically connected in parallel, and an arrangement of ducts which provide an inter-communication between adjacent chambers permit the ionized gas formed by an arc in either chamber after being lengthened to pass to the other chamber to assist in striking an arc in the latter chamber as the arc in the first-mentioned chamber is extinguished. The arc is thus enabled to be transferred back and forth between adjacent arc chambers until the current has been reduced to such an extent that no further arc can be sustained.

    摘要翻译： 用于磁淬火型的浪涌电压避雷器的火花隙系统由一堆重叠板组成，每个堆叠板设有一个凹槽，该凹槽限定了一个电弧室和一对隔开的电极，并在其间可以击打一个电弧 并被磁场延长。 相邻电弧室中的电极对被并联电连接，并且在相邻室之间提供相互连通的管道布置允许在延长之后由任一室中的电弧形成的电离气体传递到另一个腔室以辅助 当第一个提到的腔室中的电弧熄灭时，在后一个室内击弧。 因此，电弧能够在相邻的电弧室之间来回传递，直到电流已经减小到不能维持另外的电弧的程度。

    Sparkgap assembly having horngap end electrodes
    5.
    发明授权
    Sparkgap assembly having horngap end electrodes 失效
    具有HORNGAP端电极的火花塞组件

    公开(公告)号：US3614523A

    公开(公告)日：1971-10-19

    申请号：US3614523D

    申请日：1969-12-18

    申请人： GEN ELECTRIC

    发明人： STETSON EARL W ,  CHAREWICZ FRANCIS J

    IPC分类号： H01T1/04 ,  H01T4/16 ,  H01T5/00 ,  H02H9/06

    CPC分类号： H01T1/04 ,  H01T4/16

    摘要： A sparkgap assembly for a surge voltage arrester is provided with a plurality of elongated electrodes mounted between stacked plates of insulating material to form a zigzag discharge path through the sparkgap assembly when it is sparked over. The sparkgap assembly is provided with uniquely formed end plates that provide corona shielding and contact the outer electrodes of the assembly in a manner such that these electrodes develop an arc-moving, horngap effect when an overvoltage surge is discharged through the assembly.