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58 条记录 (耗时 0.033 秒)

    Surge-absorberless vacuum circuit interrupter
    51.
    发明授权
    Surge-absorberless vacuum circuit interrupter 失效
    浪涌吸收器真空断路器

    公开(公告)号：US4551596A

    公开(公告)日：1985-11-05

    申请号：US478306

    申请日：1983-03-24

    申请人： Ryuji Watanabe ,  Hisashi Ando ,  Keiichi Kuniya ,  Yukio Kurosawa

    发明人： Ryuji Watanabe ,  Hisashi Ando ,  Keiichi Kuniya ,  Yukio Kurosawa

    IPC分类号： H01H33/66 ,  H01H1/02 ,  H01H1/0233 ,  H01H33/664

    CPC分类号： H01H33/664 ,  H01H1/0203 ,  H01H1/0233

    摘要： A small-sized, light weighted vacuum circuit interrupter is provided. The interrupter comprises a vacuum container confining a vacuum atmosphere of a pressure less than 10.sup.-5 mmHg and a pair of electrodes at least one of which is a movable electrode for making and breaking an electric circuit including either a transformer of a rated surge voltage strength of less than 45 kV or a motor of a rated surge voltage strength of less than 25 kV. At least one of the electrodes has a contact made of a porous body of a refractory conductive material and an impregnate selected from the group consisting of silver telluride, silver selenide and mixtures thereof impregnated in the porous body in an amount sufficient to give the interrupter a chopping current of not more than 1A and an arc extinguishing capability at 1MHz of not more than 27 A/.mu.s when measured in a circuit of 6 kV. The interrupter can be connected to the load without a surge absorber for protecting the breaker from a surge voltage generated at the time of interrupting the circuit.

    摘要翻译： 提供了一个小型轻型真空断路器。 断流器包括限制压力小于10-5mmHg的真空气氛的真空容器和一对电极，其中至少一个是可动电极，用于制造和断开包括额定浪涌电压强度的变压器的电路 小于45kV的电动机或额定浪涌电压强度小于25kV的电动机。 所述电极中的至少一个具有由耐火导电材料的多孔体制成的接触体和浸渍在多孔体中的浸渍剂，所述浸渍物选自碲化镉，硒化银及其混合物，其量足以给断流器a 在6 kV的电路中测量时，斩波电流不大于1A，1MHz时的灭弧能力不大于27 A /μs。 断路器可以连接到负载而没有浪涌吸收器，用于保护断路器免受中断电路时产生的浪涌电压。

    Electric contact materials
    52.
    发明授权
    Electric contact materials 失效
    电接触材料

    公开(公告)号：US4457780A

    公开(公告)日：1984-07-03

    申请号：US367603

    申请日：1982-04-12

    申请人： Mitsuo Osada ,  Nobuhito Kuroishi ,  Yoshinari Amano ,  Akira Fukui

    发明人： Mitsuo Osada ,  Nobuhito Kuroishi ,  Yoshinari Amano ,  Akira Fukui

    IPC分类号： C22C32/00 ,  H01H1/0233 ,  B22F3/00

    CPC分类号： C22C32/0084 ,  H01H1/0233

    摘要： The invention relates to electric contact materials for use in switches, such as moulded circuit breakers, air circuit breakers, magnetic switches, etc.The electric contact materials comprise 5-60 weight % iron group metals, 1-11 weight % graphite, 5-70 weight % refractory materials, and the residual part consisting of silver, said refractory materials being held in the state of dispersion in the iron group metals and/or silver, thereby providing welding resistance, wear resistance, and insulation resistance as well as high practical utility of low temperature rise.

    摘要翻译： 本发明涉及用于开关的电接触材料，例如模制断路器，空气断路器，磁性开关等。电接触材料包括5-60重量％的铁族金属，1-11重量％的石墨， 70重量％的耐火材料和由银组成的残留部分，所述耐火材料保持在铁族金属和/或银中的分散状态，从而提供耐焊接性，耐磨性和绝缘电阻以及高实用性 低温升高的效用

    Gold based material for electrical contact materials
    53.
    发明授权
    Gold based material for electrical contact materials 失效
    用于电接触材料的金基材料

    公开(公告)号：US4374086A

    公开(公告)日：1983-02-15

    申请号：US258134

    申请日：1981-04-27

    申请人： Jaydev D. Desai

    发明人： Jaydev D. Desai

    IPC分类号： C22C32/00 ,  H01H1/0233 ,  C22C5/02

    CPC分类号： H01H1/0233 ,  C22C32/0047 ,  Y10S75/95

    摘要： There is presented an electrical contact material consisting of an alloy of gold and a compound selected from a group consisting of a carbide, a boride, or a silicide of a refractory element. The compound of the refractory element is selected from a group consisting of WC, Hfb.sub.2, TiB.sub.2, ZrB.sub.2, WSi.sub.2, and TiSi.sub.2. The resulting alloys have a hexagonal crystal structure and exhibit high wear resistance, low contact resistance, low electrical noise, and a homogeneous uncontaminated microstructure.

    摘要翻译： 呈现由金和合金选择的化合物组成的电接触材料，所述化合物选自耐火材料的碳化物，硼化物或硅化物。 难熔元素的化合物选自WC，Hfb2，TiB2，ZrB2，WSi2和TiSi2。 所得合金具有六方晶系结构，具有高耐磨性，低接触电阻，低电噪声和均匀的未污染微结构。

    Electrical contact material
    54.
    发明授权
    Electrical contact material 失效
    电接点材料

    公开(公告)号：US3951872A

    公开(公告)日：1976-04-20

    申请号：US421276

    申请日：1973-12-03

    申请人： Lloyd F. Neely

    发明人： Lloyd F. Neely

    IPC分类号： C22C5/02 ,  C22C1/04 ,  C22C5/06 ,  C22C29/06 ,  C22C32/00 ,  H01B1/00 ,  H01B1/02 ,  H01H1/023 ,  H01H1/0233

    CPC分类号： H01H1/0233 ,  C22C1/045 ,  C22C1/0466 ,  H01B1/00 ,  H01H1/023 ,  Y10S428/929

    摘要： An electrical contact material consisting essentially of a highly conductive metal such as gold or silver, a refractory constituent such as tungsten, molybdenum, tantalum, titanium, their carbides, or mixtures thereof and a bonding constituent of at least two metals that form an alloy selected from the iron group (Group VIII of the Periodic Table of the Elements), and copper. The material has improved properties including improved resistance to arc erosion, resistance to bleeding of the highly conductive metal, and resistance to welding or sticking when used as an electrical contact material.

    摘要翻译： 基本上由高导电金属如金或银组成的电接触材料，诸如钨，钼，钽，钛，它们的碳化物或其混合物的耐火成分，以及形成选择的合金的至少两种金属的粘合成分 来自铁组（元素周期表第VIII组）和铜。 该材料具有改进的性能，包括改善的耐电弧腐蚀性，耐高导电性金属的渗透性，以及当用作电接触材料时耐焊接或粘着性。