Circuit interrupting device with arcing rod speed modifying means
    2.
    发明授权
    Circuit interrupting device with arcing rod speed modifying means 失效
    具有电弧棒速度调节装置的电路中断装置

    公开(公告)号:US4193053A

    公开(公告)日:1980-03-11

    申请号:US873626

    申请日:1978-01-30

    IPC分类号: H01H85/38

    CPC分类号: H01H85/38

    摘要: A lead weight or other mass is crimped to the contact button assembly of the arcing rod of a high-voltage alternating-current power fuse thereby increasing the mass of the arcing rod without increasing the diameter of the rod. The increased mass of the arcing rod decreases the velocity with which the arcing rod moves upon fusing of the fusible member thereby decreasing the rate of elongation of the arc drawn between the end of the arcing rod and the stationary ferrule at the other end of the fuse. Under high current conditions, the shorter arc length drawn in the fuse reduces the pressure of the arc-extinguishing gas generated by the arc, thereby reducing the risk that an economically constructed fuse will burst in those situations when the arc is not interrupted at the first current zero. This result is accomplished without adversely affecting operation of the fuse and interruption of the arc at low current levels.

    摘要翻译: 铅锤或其他物体被卷曲到高压交流电源熔断器的电弧杆的接触按钮组件,从而增加电弧棒的质量而不增加棒的直径。 电弧棒的质量的增加降低了熔丝在融合熔断部件时移动的速度,从而降低了在熔丝杆的另一端处的电弧杆与固定套圈之间拉出的电弧的伸长率 。 在高电流条件下,在熔断器中拉出的较短电弧长度会降低由电弧产生的灭弧气体的压力,从而降低了在这种情况下经济构造的熔断器在第一次不中断电弧时会爆裂的风险 当前零。 这个结果是在不影响熔丝运行和低电流电弧中断的情况下完成的。

    Current-limiting fuse and housing arrangement having a seal between an
element and housing
    5.
    发明授权
    Current-limiting fuse and housing arrangement having a seal between an element and housing 失效
    限流熔断器和壳体布置,其在元件和壳体之间具有密封

    公开(公告)号:US5675308A

    公开(公告)日:1997-10-07

    申请号:US618592

    申请日:1996-03-20

    摘要: A low-exhaust composite drop-out assembly is provided that is utilizable in a standard cutout mounting in electrical power distribution systems. The composite drop-out assembly includes current-limiting and low-current clearing sections and is easily removable from mounting for servicing. The sections are efficiently arranged in a side by side configuration.. The low-current clearing section includes a fuse-robe assembly having a replaceable fuse cartridge. Accordingly, the low-current clearing section is simply and economically renewable for reuse whether or not the current-limiting section has operated. Further, the current-limiting section need not be replaced if only the low-current clearing section operated in response to overcurrent in a low range. Additionally, the sections are separable so that the low-current clearing section can be reused after simple refusing even when the current-limiting section has operated.

    摘要翻译: 提供了一种低排气复合材料出口组件,其可用于配电系统中的标准切口安装。 复合材料脱出组件包括限流和低电流清除部分,并且可以容易地从安装中移除以进行维修。 这些部分被并排配置有效地布置。低电流清除部分包括具有可更换的保险丝盒的熔断器组件。 因此,低电流清除部分是简单且经济上可再生的,无论电流限制部分是否已经操作。 此外,如果仅在低电流清除部分响应于低电平的过电流而操作,则不需要更换限流部分。 此外,这些部分是可分离的,使得即使当限流部分已经操作时,也可以在简单拒绝之后重新使用低电流清除部分。

    Fuse assembly with low exhaust and replaceable cartridge
    6.
    发明授权
    Fuse assembly with low exhaust and replaceable cartridge 失效
    具有低排气和可更换墨盒的保险丝总成

    公开(公告)号:US5502427A

    公开(公告)日:1996-03-26

    申请号:US227202

    申请日:1994-04-07

    摘要: A low-exhaust composite drop-out assembly is provided that is utilizable in a standard cutout mounting in electrical power distribution systems. The composite drop-out assembly includes current-limiting and low-current clearing sections and is easily removable from the mounting for servicing. The sections are efficiently arranged in a side by side configuration. The low-current clearing section includes a fuse-tube assembly having a replaceable fuse cartridge. Accordingly, the low-current clearing section is simply and economically renewable for reuse whether or not the current-limiting section has operated. Further, the current-limiting section need not be replaced if only the low-current clearing section operated in response to overcurrent in a low range. Additionally, the sections are separable so that the low-current clearing section can be reused after simple refusing even when the current-limiting section has operated.

    摘要翻译: 提供了一种低排气复合材料出口组件,其可用于配电系统中的标准切口安装。 复合材料脱出组件包括电流限制和低电流清除部分,并且可以容易地从安装件移除以进行维修。 这些部分被并排配置有效地排列。 低电流清除部分包括具有可更换的保险丝盒的熔丝管组件。 因此,低电流清除部分是简单且经济上可再生的,无论电流限制部分是否已经操作。 此外,如果仅在低电流清除部分响应于低电平的过电流而操作,则不需要更换限流部分。 此外,这些部分是可分离的,使得即使当限流部分已经操作时,也可以在简单拒绝之后重新使用低电流清除部分。

    Valve arrangement for high voltage fuse
    9.
    发明授权
    Valve arrangement for high voltage fuse 失效
    高压保险丝阀安装

    公开(公告)号:US4045758A

    公开(公告)日:1977-08-30

    申请号:US741024

    申请日:1976-11-11

    IPC分类号: H01H85/00 H01H85/43 H01H85/20

    CPC分类号: H01H85/43 H01H85/003

    摘要: A valve arrangement for high voltage fuses permits the atmosphere to be vented into the interior of the fuse when the atmospheric pressure is greater than the interior pressure of the fuse, but restricts venting back out of the fuse when the interior pressure of the fuse is greater than atmospheric pressure thereby tending to maintain a greater than atmospheric pressure on the inside of the fuse to assist in preventing moisture from entering the fuse. The valve arrangement also enhances fuse operation. During the interruption of relatively low current, it functions as a check valve and tends to assist in increasing the internal pressure within the fuse thereby tending to accelerate contact separation. However, at higher current levels the valve arrangement ruptures, releasing the arc gases so that there is not an adverse effect on fuse operation.

    Apparatus for associating an electrical device with a mounting therefor
    10.
    发明授权
    Apparatus for associating an electrical device with a mounting therefor 失效
    用于将电气设备与其安装件相关联的设备

    公开(公告)号:US4422062A

    公开(公告)日:1983-12-20

    申请号:US433077

    申请日:1982-10-06

    IPC分类号: H01H31/12 H01H71/10

    CPC分类号: H01H31/125

    摘要: A pull-ring for an electrical device, such as a high-voltage fuse, which may be placed in a mounting. The pull-ring operates a latch, which is capable of holding the fuse closed in the mounting, only when it is reciprocated. The pull-ring is pivotable independently of its reciprocation without affecting the condition of the latch. Accordingly, when a trunnion on the device is in a hinge of the mounting and a pushing force is applied to the pull-ring with a tool to close the device, the natural decrease in the interior angle between the tool and the device can rotate the pull-ring without preventing the latch from holding the device closed. Further, whether the pushing force or a pulling (opening) force is applied to the pull-ring, the direction of application of the force may be adjusted or may naturally change before, during,or after such force application with affecting the ability of the latch to hold the device closed. The tool may, therefore, be either a non-grasping tool (a "hot stick") or one (a "shotgun stick") capable of grasping the pull-ring. In the latter event, when the tool grasps the pull-ring and the trunnion is out of the hinge, the pull-ring is biased to a pivotal orientation whereat the trunnion is presented for convenient insertion into the hinge upon manipulation of the tool.

    摘要翻译: 用于电气设备的拉环,例如可以放置在安装中的高压保险丝。 拉环操作一个闩锁,只能在往复运动时才能将保险丝固定在安装中。 拉环可以独立于其往复运动而枢转,而不影响闩锁的状态。 因此,当装置上的耳轴处于安装的铰链中并且用工具将推力施加到拉环以关闭装置时,工具和装置之间的内角的自然减小可以使 拉环,而不会阻止闩锁将装置关闭。 此外,无论推力还是拉力(打开)力被施加到拉环上,施加力的方向可以被调节,或者可以在这种力施加之前,之中或之后自然地改变,从而影响到 闩锁以将设备保持关闭。 因此,该工具可以是能够抓住拉环的非抓握工具(“热棒”)或一个(“猎枪棒”)。 在后一种情况下,当工具抓住拉环并且耳轴离开铰链时,拉环被偏压到枢转方向,在该枢轴方向上呈现耳轴,以便在操纵工具时方便地插入铰链中。