Fully synthetic taped insulation cables
    1.
    发明授权
    Fully synthetic taped insulation cables 失效
    全合成胶带绝缘电缆

    公开(公告)号:US4487991A

    公开(公告)日:1984-12-11

    申请号:US514127

    申请日:1983-07-15

    CPC分类号: H01B9/0611 H01B3/441

    摘要: A high voltage oil-impregnated electrical cable with fully polymer taped insulation operable to 765 kV. Biaxially oriented, specially processed, polyethylene, polybutene or polypropylene tape with an embossed pattern is wound in multiple layers over a conductive core with a permeable screen around the insulation. Conventional oil which closely matches the dielectric constant of the tape is used, and the cable can be impregnated after field installation because of its excellent impregnation characteristics.

    摘要翻译: 高压油浸电缆,具有完全聚合物胶带绝缘,可操作至765 kV。 双轴取向的,特殊加工的,具有压花图案的聚乙烯,聚丁烯或聚丙烯带在绝缘体周围具有可渗透屏蔽的导电芯上多层缠绕。 使用与胶带的介电常数紧密匹配的常规油,由于其优异的浸渍特性,电缆可以在现场安装之后浸渍。

    Time marking chronometer
    2.
    发明授权
    Time marking chronometer 失效
    时间标记计时器

    公开(公告)号:US4010603A

    公开(公告)日:1977-03-08

    申请号:US573313

    申请日:1975-04-30

    申请人: Eric B. Forsyth

    发明人: Eric B. Forsyth

    CPC分类号: G04G9/087 G04G9/12

    摘要: A fully electronic chronometer using a quartz crystal as a frequency standard and displaying mean time by the use of electronically operated digital read-outs. The circuit permits the display of the instant of time at which a switch is operated, while mean time continues to be counted by the circuitry. Other features include conservation of power by display of mean time only upon demand and the provision for control and display remote from the timing circuitry.

    摘要翻译: 使用石英晶体作为频率标准的全电子计时器,通过使用电子数字读数显示平均时间。 电路允许显示开关操作的时刻,同时电路继续计数。 其他功能包括通过仅在需要时显示平均时间来保护功率,以及远离定时电路的控制和显示。