Method for cutting off an electric arc, method and device for protecting an installation against voltage surges
    3.
    发明授权
    Method for cutting off an electric arc, method and device for protecting an installation against voltage surges 有权
    用于切断电弧的方法,用于保护设备免受电压浪涌的方法和装置

    公开(公告)号:US09111698B2

    公开(公告)日:2015-08-18

    申请号:US13656021

    申请日:2012-10-19

    申请人: ABB France

    发明人: Vincent Crevenat

    IPC分类号: H01T1/02 H01H9/36 H01T4/14

    CPC分类号: H01H9/36 H01T1/02 H01T4/14

    摘要: The method comprising displacing the formed electric arc towards an electrode located in an intermediate position between both main electrodes; a separating the formed electric arc into two secondary electric arcs, a semiconductor switch, normally open, connecting the intermediate electrode to one of the main electrodes; closing the semiconductor switch in order to extinguish the secondary electric arc between both electrodes connected by the semiconductor switch; opening the semiconductor switch in order to extinguish the other secondary electric arc. The disclosure further relates to a protection method and a protection device, notably a protection device specially designed for applying the method.

    摘要翻译: 该方法包括将形成的电弧移向位于两个主电极之间的中间位置的电极; 将形成的电弧分离成两个次级电弧,将中间电极连接到主电极之一的常开的半导体开关; 关闭半导体开关以消除由半导体开关连接的两个电极之间的二次电弧; 打开半导体开关以熄灭其他二次电弧。 本公开还涉及保护方法和保护装置,特别是专门用于应用该方法的保护装置。

    Protective device for electric power distribution network
    4.
    发明申请
    Protective device for electric power distribution network 审中-公开
    配电网保护装置

    公开(公告)号:US20060104003A1

    公开(公告)日:2006-05-18

    申请号:US10523039

    申请日:2003-08-05

    申请人: Boris Gautier

    发明人: Boris Gautier

    IPC分类号: H02H9/06

    摘要: A device for protecting an electrical power distribution network against the overvoltages due to a lightning strike is disclosed herein. The device comprises a first electrode electrically coupled to the electrical power distribution network, a second electrode connected to a grounding conductor, focusing means capable of guiding an electric arc generated between the two electrodes toward a fractionation device, and a casing. The casing accommodates the two electrodes, the focusing means and the fractionation device. The casing is in communication with the outside through at least one discharge channel designed to substantially lower the temperature of the gases generated by the formation of the electric arc, wherein each discharge channel has at least one change of section.

    摘要翻译: 本文公开了一种用于保护配电网络免受雷击引起的过电压的装置。 该装置包括电耦合到配电网络的第一电极,连接到接地导体的第二电极,能够将两个电极之间产生的电弧引导到分级装置的聚焦装置和壳体。 壳体容纳两个电极,聚焦装置和分馏装置。 壳体通过设计成基本上降低由电弧形成产生的气体的温度的至少一个排放通道与外部连通,其中每个排放通道具有至少一个部分变化。

    ARC COMPRESSION-BASED ARC-EXTINGUISHING LIGHTNING-PROTECTION GAP DEVICE

    公开(公告)号:US20190097398A1

    公开(公告)日:2019-03-28

    申请号:US16095462

    申请日:2017-05-26

    IPC分类号: H01T1/02 H01T4/10 H01T1/24

    摘要: Provided in the present disclosure is an arc compression-based arc-extinguishing lightning-protection gap device. The device comprises a lightning protector main body and an arc-striking electrode. The arc-striking electrode is fixedly mounted at one end of the main body. The other end of the main body is fixedly mounted, by means of a link fitting, to a crossarm or one end of an insulator string. The lightning protector main body is provided with an arc-extinguishing path consisting of several arc-extinguishing channels in a repeated Z-shaped arrangement. An arc-extinguishing tube at an inlet of a first arc-extinguishing channel of the arc-extinguishing path is connected to the arc-striking electrode via an arc-guiding rod, and an arc-extinguishing tube at an outlet of a last arc-extinguishing channel is connected to the link fitting. A three-way tube is provided at a joint of two adjacent arc-extinguishing channels; two ends of the three-way tube are each provided with one arc-guiding electrode; and the arc-guiding electrode has one end extending into the three-way tube and the other end connected to a nearby arc-extinguishing tube via direct contact or a wire. The present disclosure has the advantages of simple structure, reasonable design, improved arc-extinguishing performance, and stable operation.

    DISCONNECTOR AND SURGE ARRESTER INCLUDING SUCH DISCONNECTOR

    公开(公告)号:US20180211805A1

    公开(公告)日:2018-07-26

    申请号:US15746349

    申请日:2016-07-19

    申请人: ZOTUP S.R.L.

    摘要: A disconnector and related surge arrester include first and second connection terminals connecting to active electrical leads, between which a protection element is inserted, having electrodes electrically connected to the connection terminals, a disconnector between the first terminal and an electrode of the protection element including a metal plate having a base end electrically connected to the first terminal and a distal end maintained electrically connected to the electrode, the plate being able to sublimate in the presence of short-circuit currents above a preset threshold, an intercepting slider, mounted longitudinally slidable along a longitudinal direction which lies between the base end of the lamina and the electrode of the protection element to intersect development of an electric arc, a sliding guide for the intercepting slider, the slider being biased in the longitudinal direction, through a preloaded elastic unit, towards an intercepting position abutting a portion of the plate.

    Voltage surge arrester
    10.
    发明授权
    Voltage surge arrester 失效
    电压传感器

    公开(公告)号:US3851217A

    公开(公告)日:1974-11-26

    申请号:US38864073

    申请日:1973-08-15

    发明人: AMSLER J OTTO W

    CPC分类号: H01H33/666 H01T1/02 H01T1/14

    摘要: A voltage surge or overvoltage arrester comprising at least one response element which becomes conductive upon the occurrence of a voltage surge which exceeds a certain boundary or limit and appears at the connection terminals of the overvoltage arrester, at least one extinguishing element for interrupting the arc supplied by the follower current and at least one arrester resistor connected in series with the extinguishing element and parallel impedances for controlling the voltage distribution. The extinguishing element comprises a switch which can be actuated by an electro-dynamic drive.

    摘要翻译: 一种电压浪涌或过电压避雷器,包括至少一个响应元件,所述至少一个响应元件在发生超过某一边界或极限并且出现在过电压避雷器的连接端子处的电压浪涌时变为导通,至少一个用于中断供电的电弧的灭弧元件 由跟随器电流和至少一个与灭弧元件串联的避雷器电阻器和用于控制电压分布的并联阻抗。 灭火元件包括可通过电动驱动致动的开关。