Test tap adapter for extracting dissolved gases from insulating oil and measuring electrical parameters of a transformer bushing
    3.
    发明授权
    Test tap adapter for extracting dissolved gases from insulating oil and measuring electrical parameters of a transformer bushing 失效
    用于从绝缘油中提取溶解气体并测量变压器衬套的电气参数的测试分接头适配器

    公开(公告)号:US06968728B2

    公开(公告)日:2005-11-29

    申请号:US10615930

    申请日:2003-07-10

    IPC分类号: G01N1/22 G01N1/34 G01N33/28

    摘要: The present invention relates to an apparatus for measuring the capacitance and the dissipation factor in a transformer bushing and extracting gas dissolved in the insulating fluid of said bushing. The apparatus comprises a porous cylindrical member associated with a tap connector and covered by a thin layer of a gas permeable but liquid impermeable membrane. The porous member allows passive diffusion of the permeated gas extracted from the insulating fluid of a transformer bushing to a gas storage chamber for further analysis, thereby helping to prevent high costs related to damage or destruction of the bushing.

    摘要翻译: 本发明涉及一种用于测量变压器衬套中的电容和耗散因数并提取溶解在所述衬套的绝缘流体中的气体的装置。 该设备包括与抽头连接器相关联并被透气但不透液膜的薄层覆盖的多孔圆柱形构件。 多孔构件允许从变压器衬套的绝缘流体提取的渗透气体被动扩散到气体储存室以进行进一步分析,从而有助于防止与衬套的损坏或破坏有关的高成本。

    Process for dehydrating a mineral oil or other solvents for the preparation of moisture-in-oil or moisture-in-solvent standards
    5.
    发明授权
    Process for dehydrating a mineral oil or other solvents for the preparation of moisture-in-oil or moisture-in-solvent standards 失效
    使矿物油或其他溶剂脱水以制备油包水或水分溶剂标准品的方法

    公开(公告)号:US06423210B1

    公开(公告)日:2002-07-23

    申请号:US08664432

    申请日:1996-06-18

    IPC分类号: C10G3304

    CPC分类号: G01N33/2847

    摘要: An oil, such as a mineral oil, for example, transformer oil, is contacted with calcium carbide and the mixture is stirred until a liquid phase containing less than 1 ppm water and a solid phase containing Ca(OH)2 and unreacted CaC2 are obtained. The oil obtained can be used to give samples of known quantities of water by adding corresponding amounts thereto.

    摘要翻译: 将诸如矿物油(例如变压器油)的油与碳化钙接触,并将混合物搅拌直到获得含有少于1ppm的水和含有Ca(OH)2和未反应的CaC 2的固相的液相 。 获得的油可以通过加入相应的量来用于给出已知量的水样品。