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22 条记录 (耗时 0.009 秒)

    High-voltage fluidic circuit interrupter
    2.
    发明授权
    High-voltage fluidic circuit interrupter 失效
    高压流体电路中断器

    公开(公告)号：US3612797A

    公开(公告)日：1971-10-12

    申请号：US3612797D

    申请日：1969-09-22

    申请人： US INTERIOR ,  DOROTHEA M BOLING ,  ALLEN L KINYON

    发明人： BOLING WALLACE L

    IPC分类号： H01H33/16 ,  H01H33/75

    CPC分类号： H01H33/162

    摘要： A semiconducting fluid stream controls arcing between the contacts of a high-voltage circuit interrupter. The fluid stream initially establishes a low-resistance conducting path between the interrupter contacts as they separate when the interrupter is activated. As the spacing between the contacts increases the resistance of the fluid stream also increases. The increased resistance reduces the load current to a low level at which circuit interruption is accomplished without significant arcing. The semiconducting fluid also extinguishes any arc which forms as the interrupter contacts separate.

    Conductive liquid compositions and electrical circuit protection devices comprising conductive liquid compositions
    6.
    发明授权
    Conductive liquid compositions and electrical circuit protection devices comprising conductive liquid compositions 失效
    导电液体组合物和包含导电液体组合物的电路保护装置

    公开(公告)号：US5581192A

    公开(公告)日：1996-12-03

    申请号：US350299

    申请日：1994-12-06

    申请人： John J. Shea ,  James D. B. Smith ,  Karl F. Schoch, Jr.

    发明人： John J. Shea ,  James D. B. Smith ,  Karl F. Schoch, Jr.

    IPC分类号： H01H29/00 ,  H01H29/06 ,  H01H33/16 ,  H01H71/24 ,  G01R31/00

    CPC分类号： H01H29/06 ,  H01H29/004 ,  H01H33/162 ,  H01H71/24

    摘要： Novel conductive liquid compositions which have low resistivity when carrying an applied steady-state current (I.sub.Steady-State) but exhibit sharp increases in resistivity when subject to an applied fault current (I.sub.Fault). When used in circuit protection devices, the novel conductive liquid compositions having low resistivity are contained within an elongated flexible tube sealed by electrodes electrically connected to a load of an electrical circuit. The conductive liquid compositions carry an applied normal current under steady-state conditions. The flexible tube is deformed by radial contraction transverse to the direction of current flow and axial expansion, when an excessive current of fault magnitude is sensed by an actuator electrically connected to the electrodes and mechanically connected to the flexible tube to apply a deformation force on the tube, thereby causing the current path of the conductive liquid compositions to have high resistivity in order to limit the let through current to a safe value (I.sub.Limited). When the excessive current is removed, the deformation is correspondingly removed and the conductive liquid composition automatically reverts back to its original low resistivity state. The invention has specific applications as automatically resettable fuses or current limiters.

    摘要翻译： 新型导电液体组合物在承载施加的稳态电流（ISteady-State）时具有低电阻率，但在受到施加的故障电流（IFault）时呈现电阻率的急剧增加。 当用于电路保护装置时，具有低电阻率的新型导电液体组合物被包含在由电连接到电路的负载的电极密封的细长柔性管中。 导电液体组合物在稳态条件下携带施加的正常电流。 柔性管通过横向于电流和轴向膨胀方向的径向收缩而变形，当故障幅度的过大电流被电连接到电极的致动器感测并机械地连接到柔性管以在其上施加变形力时 从而导致导电液体组合物的电流路径具有高电阻率，以便将通过电流限制到安全值（ILimited）。 当去除过大的电流时，相应地去除变形，并且导电液体组合物自动地回复到其原始的低电阻率状态。 本发明具有可自动复位的保险丝或电流限制器的具体应用。

    Process and device for current switching with a fluid-driven liquid metal current switch
    10.
    发明申请
    Process and device for current switching with a fluid-driven liquid metal current switch 失效

    公开(公告)号：US20060146466A1

    公开(公告)日：2006-07-06

    申请号：US11328160

    申请日：2006-01-10

    申请人： Kaveh Niayesh ,  Friedrich Konig ,  Andreas Dahlquist

    发明人： Kaveh Niayesh ,  Friedrich Konig ,  Andreas Dahlquist

    IPC分类号： H02H3/08

    CPC分类号： H01H29/28 ,  H01H33/162 ,  H01H71/127 ,  Y10T307/937

    摘要： A process and a device are disclosed for current limiting and/or circuit breaking and a switchgear assembly with such a device. As claimed in the invention a liquid metal is moved by a dielectric fluid drive with a control between a first current path for the rated current (I1), a second current path for current limiting (I2) and optionally a third current path for current interruption (i=0), the working fluid acting mechanically with a definable drive pressure (p1, p2) directly on one surface of the liquid metal. Embodiments are, among others, the following: insulating gas or insulating liquid as the drive fluid; pressure drive with pressure vessels and valves or a piezodrive for the working fluid; and design criteria for the liquid metal arrangement, drive pressure (p1, p2) and piezodrive. Advantages are, among others, the following: reversible current limiting and current interruption, also suited for high voltages and current, fast reaction times, low wear and maintenance-friendly.