Surge arrester having ridged terminals
    1.
    发明授权
    Surge arrester having ridged terminals 失效
    浪涌避雷器有端子

    公开(公告)号:US5818677A

    公开(公告)日:1998-10-06

    申请号:US878856

    申请日:1997-06-20

    IPC分类号: H01C7/12 H01C8/04 H02H1/00

    CPC分类号: H01C8/04 H01C7/126

    摘要: A surge arrester (1) includes varistor elements (2) forming a stack (3) and having opposed end surfaces (4a, 4b). The varistor stack is electrically connected via the opposed end surfaces to end terminals (7a, 7b) having circumferential ridges (32a, 32b), which, in the event of failure of the varistor elements, are designed to relocate the resulting arc and direct it in a manner which reduces or minimizes damage to the surge arrester. The ridges serve as damage-tolerant sacrificial rooting points for an arc in the event of varistor element failure by presenting a substantial metal mass for the arc to erode away.

    摘要翻译: 避雷器(1)包括形成叠层(3)并具有相对的端面(4a,4b)的变阻器元件(2)。 压敏电阻堆叠通过相对的端面电连接到具有周向脊(32a,32b)的端部端子(7a,7b),其在变阻器元件的故障的情况下被设计成重新定位所得到的电弧并将其引导 以减小或最小化对避雷器的损坏的方式。 在通过呈现用于电弧消失的大量金属质量的情况下,脊线用作电抗器的损坏容忍牺牲生根点。

    Surge arrester having ridged terminals
    2.
    发明授权
    Surge arrester having ridged terminals 失效
    浪涌避雷器有端子

    公开(公告)号:US5712757A

    公开(公告)日:1998-01-27

    申请号:US672184

    申请日:1996-06-27

    IPC分类号: H01C7/12 H01C8/04 H02H1/04

    CPC分类号: H01C8/04 H01C7/126

    摘要: A surge arrester includes varistor elements forming a stack and having opposed end surfaces. The varistor stack is electrically connected via the opposed end surfaces to end terminals having circumferential ridges, which, in the event of failure of the varistor elements, are designed to relocate the resulting arc and direct it in a manner which reduces or minimizes damage to the surge attester. The ridges serve as damage-tolerant sacrificial rooting points for an arc in the event of varistor element failure by presenting a substantial metal mass for the arc to erode away.

    摘要翻译: 电涌放电器包括形成堆叠并具有相对端面的变阻器元件。 压敏电阻堆叠经由相对的端面电连接到具有周向脊的端子端子,其在变阻器元件的故障的情况下被设计成重新定位所得到的电弧并且以使减小或最小化损坏的方式引导它 浪潮认证 在通过呈现用于电弧消失的大量金属质量的情况下,脊线用作电抗器的损坏容忍牺牲生根点。

    Surge arrester
    3.
    发明授权
    Surge arrester 失效
    浪涌避雷器

    公开(公告)号:US5680289A

    公开(公告)日:1997-10-21

    申请号:US673767

    申请日:1996-06-27

    IPC分类号: H01C7/12 H02H9/06

    CPC分类号: H01C7/126

    摘要: A surge arrester has a single varistor element or a stack of varistor elements held between two end terminals by a plurality of elongate strength members disposed therearound. The ends of the strength members are inserted into recesses in the end terminals. Crimping of the end terminals distorts the recesses sufficiently to hold the strength members firmly therewithin, but without shearing and crushing (or otherwise damaging) the strength members.

    摘要翻译: 电涌放电器具有单个变阻器元件或通过在其周围设置的多个细长的强度元件而保持在两个端子之间的一组压敏电阻元件。 加强构件的端部插入端子端部的凹部中。 端部端子的压接使凹部足够扭曲,以使强度构件牢固地保持在其中,但不会对强度构件进行剪切和破碎(或以其他方式损坏)强度构件。

    System for measuring gases dissolved in a liquid
    5.
    发明授权
    System for measuring gases dissolved in a liquid 失效
    用于测量溶解在液体中的气体的系统

    公开(公告)号:US6037592A

    公开(公告)日:2000-03-14

    申请号:US800678

    申请日:1997-02-14

    IPC分类号: G01N21/35 G01N33/28

    CPC分类号: G01N33/2841 G01N21/3504

    摘要: A method and apparatus for continuously monitoring and measuring the concentration of gases in a gas-containing liquid such as a transformer oil. The method and apparatus employ a passive gas extraction technique which comprises a high performance membrane material to extract dissolved gases from the oil, and an IR-based sensor to detect gases present. The passive gas extractor extracts dissolved gas from the gas-containing liquid, there being a known relationship between the concentration of a constituent gas in the extracted gas and the concentration of the constituent gas remaining dissolved in the gas-containing liquid. The gas sensor senses the concentration of a constituent gas in the extracted gas, in the presence of other constituent gases. The gas sensor comprises a sample chamber which receives the extracted gas, a non-dispersive infrared (IR) absorption sensing system which generates an electrical signal corresponding to the light absorption, at one or more specified IR wavelengths, of the extracted gas in the chamber, and an electrical output comprising the electrical signal generated by the non-dispersive IR absorption sensing system. A processor having receives the electrical signal corresponding to the light absorption, at the one or more specified IR wavelengths, of the extracted gas in the chamber, and computes the concentration of at least one gas constituent present in the extracted gas.

    摘要翻译: 一种连续监测和测量变压器油等含气液体中的气体浓度的方法和装置。 该方法和装置采用被动气体提取技术,其包括从油中提取溶解气体的高性能膜材料,以及用于检测存在的气体的基于IR的传感器。 无源气体提取器从含气体的液体中提取溶解气体,提取气体中的构成气体的浓度与剩余的溶解在含气体液体中的构成气体的浓度之间存在已知的关系。 气体传感器在存在其他构成气体的情况下,检测提取气中的构成气体的浓度。 气体传感器包括接收提取气体的样品室,非分散红外(IR)吸收感测系统,其在一个或多个指定的IR波长处产生对应于腔室中提取的气体的光吸收的电信号 以及包括由非分散IR吸收感测系统产生的电信号的电输出。 接收对应于室内提取气体的一个或多个指定IR波长处的光吸收的电信号的处理器,并计算提取气体中存在的至少一种气体成分的浓度。

    Apparatus for extracting a gas from a liquid and delivering the gas to a
collection station
    6.
    发明授权
    Apparatus for extracting a gas from a liquid and delivering the gas to a collection station 失效
    用于从液体中提取气体并将气体输送到收集站的装置

    公开(公告)号:US5749942A

    公开(公告)日:1998-05-12

    申请号:US798283

    申请日:1997-02-14

    IPC分类号: B01D19/00 B01D53/22 B01D61/00

    摘要: An apparatus (10) and a method are described for extracting gas from a liquid containing dissolved gas. The liquid is pumped from an external reservoir (40) of the liquid into a separation cell (14) by a liquid-pumping chamber (11). In separation cell (14) a permselective membrane (17) effects extraction of the dissolved gas from the liquid. A gas-pumping chamber (23) pumps the extracted gas from the permeate chamber (16) of the separation cell (14) to a collection station (27), where the extracted gas can be analyzed, separated into its individual components, or stored, as desired.

    摘要翻译: 描述了用于从含有溶解气体的液体中提取气体的装置(10)和方法。 液体通过液体泵送室(11)从液体的外部储存器(40)泵送到分离单元(14)中。 在分离单元(14)中,选择性渗透膜(17)从液体中提取溶解的气体。 抽气室(23)将提取的气体从分离单元(14)的渗透室(16)泵送到收集站(27),其中可以分析提取的气体,将其分离成其各个部件或存储 , 如预期的。