Automatic dehydrating breather apparatus and method
    11.
    发明授权
    Automatic dehydrating breather apparatus and method 有权
    自动脱水通气装置及方法

    公开(公告)号:US07332015B2

    公开(公告)日:2008-02-19

    申请号:US11019272

    申请日:2004-12-23

    IPC分类号: B01D53/04 H01F27/14

    摘要: A dehydrator breather is provided that includes automatic purging of accumulated moisture by detecting absorbed moisture in the breather, and closing an intake air channel, while opening an exit moisture channel. Adjustment of a default time-based purging cycle is adjusted to account for fluctuations in the detected moisture. An external communication capability is provided to enable off-site monitoring of the breather or the tank the breather is attached to.

    摘要翻译: 提供脱水器呼吸器,其包括通过检测呼吸器中吸收的水分而自动清除累积的水分,并且在打开出口湿气通道的同时关闭进气通道。 调整默认的基于时间的清洗循环被调整以考虑检测到的水分的波动。 提供外部通信能力,以使呼吸器附接到的呼吸器或坦克的异地监视。

    Dehydrating breather apparatus
    12.
    发明授权
    Dehydrating breather apparatus 失效
    脱水呼吸器

    公开(公告)号:US5902381A

    公开(公告)日:1999-05-11

    申请号:US865615

    申请日:1997-05-30

    IPC分类号: B01D53/04 B01D53/26

    摘要: A maintenance free dehydrating breather apparatus for equipment such as oil cooled transformers and the like includes a cap and vessel enclosing a container for desiccant. A heater is mounted within the container in contact with the desiccant. The apparatus is connected through the cap to the equipment being supplied with dehydrated air. When the equipment requires dehydrated air, it draws air in through a vent valve in the vessel and thence through walls of the container and the desiccant. When the equipment expels air, the air is passed out through the vent valve, which otherwise normally seals off the interior of the vessel from the moisture in outside air. At selected intervals, for a selected period of time, a heater within the container is supplied with electrical power to heat the desiccant to drive off the moisture therefrom, which condenses on the walls of the vessel and flows to the bottom of the vessel where it is discharged through the vent valve.

    摘要翻译: 用于诸如油冷变压器等的设备的免维护脱水通气装置包括封闭用于干燥剂的容器的盖和容器。 加热器安装在容器内与干燥剂接触。 该设备通过盖连接到被供给脱水空气的设备。 当设备需要脱水的空气时,通过容器中的排气阀,然后通过容器的壁和干燥剂吸入空气。 当设备排出空气时,空气通过排气阀排出,否则通常将外部空气中的水分密封在容器的内部。 在选定的时间间隔内,在容器内的加热器被供应电力以加热干燥剂以驱除其中的水分,其在容器的壁上冷凝并流到容器的底部,在那里 通过排气阀排出。

    Method of manufacturing a dry type electrical insulation
    13.
    发明授权
    Method of manufacturing a dry type electrical insulation 有权
    制造干式电绝缘的方法

    公开(公告)号:US09362020B2

    公开(公告)日:2016-06-07

    申请号:US13155950

    申请日:2011-06-08

    摘要: A method of making a dry type insulation is provided. The method includes combining a base fiber having a first outer surface with a binder material wherein the base fiber has a first melting point and the binder material has a second melting point which is different from the first melting point, heating the base fiber and binder material to a temperature above the second melting point, but below the first melting point using a double-belt press to form a resultant dry type insulation, compressing the base fiber and binder material using the double-belt press to form the resultant dry type insulation and cooling the resultant dry type insulation using the double-belt press.

    摘要翻译: 提供了制造干式绝缘的方法。 该方法包括将具有第一外表面的基础纤维与粘合剂材料组合,其中基础纤维具有第一熔点,并且粘合剂材料具有不同于第一熔点的第二熔点,加热基础纤维和粘合剂材料 使用双带式压力机至低于第一熔点的温度以形成所得的干式绝缘体,使用双带式压力机压缩基础纤维和粘合剂材料以形成所得干式绝缘体, 使用双带压机冷却所得的干式绝缘。

    Sensor and method for detecting electric contact degradation
    15.
    发明授权
    Sensor and method for detecting electric contact degradation 有权
    用于检测电接触劣化的传感器和方法

    公开(公告)号:US07343274B2

    公开(公告)日:2008-03-11

    申请号:US11157982

    申请日:2005-06-22

    IPC分类号: G06F17/50 G11B9/00

    CPC分类号: G01R31/3333 Y10S977/75

    摘要: A probe cell monitors conditions within electrical power transmission and switchgear apparatus to detect degradation of stressed components. The probe cell is a hardware simulation of components of a specific unit of electrical power apparatus, including electrodes between which an electric field gradient is established. The probe cell electrodes accumulate contamination at a rate related to accumulation rate on components of working apparatus. In a typical embodiment, a probe cell installed within an enclosure shares the insulating, hydrocarbon-based immersion fluid of the apparatus. Because the probe cell can be invasively tested and results recorded as often as desired without deenergizing the actual apparatus, degradation of the apparatus can be predicted with high confidence, avoiding unnecessary maintenance as well as unexpected catastrophic failure. Potential reduction in unproductive preventive maintenance while avoiding emergency repairs can offset probe cell cost.

    摘要翻译: 探针单元监测电力传输和开关设备中的状况,以检测应力分量的退化。 探针单元是电力设备的特定单元的部件的硬件模拟,包括其间建立电场梯度的电极。 探针单元电极以与加工设备的部件上的累积速率相关的速率累积污染物。 在典型的实施例中,安装在外壳内的探针单元共享设备的绝缘的基于烃的浸没流体。 因为可以对探针单元进行侵入式测试,并且结果根据需要经常地被记录,而不会使实际装置断电,所以可以高度置信地预测设备的劣化,避免不必要的维护以及意想不到的灾难性故障。 在避免紧急维修的同时,非生产性预防性维护的潜在减少可能会抵消探针电池成本。

    High temperature insulation for liquid-filled transformers
    17.
    发明授权
    High temperature insulation for liquid-filled transformers 失效
    充液变压器的高温绝缘

    公开(公告)号:US5368929A

    公开(公告)日:1994-11-29

    申请号:US15126

    申请日:1993-02-09

    摘要: A high temperature insulation for liquid-filled transformers. This invention is a composite sheet material composed of a substrate saturated with a thermally stable polymeric resin that provides a micro-porous structure. This structure allows dielectric fluid to saturate the electrical insulation material. The insulation materials have a low moisture absorption, and do not generate water when aged during the life of the transformer. The invention improves transformer life expectancy with a cost effective alternate electrical sheet insulation material. This material has better heat aged electrical properties than cellulose, which is presently the most common insulator for liquid filled transformers.

    摘要翻译: 充液变压器的高温绝缘。 本发明是一种复合材料片材,它由饱和了能提供微孔结构的热稳定聚合物树脂的基底组成。 这种结构允许电介质流体使电绝缘材料饱和。 绝缘材料吸湿性低,变压器使用寿命时老化时不会产生水分。 本发明通过具有成本效益的交替电气板绝缘材料来改善变压器的预期寿命。 该材料具有比纤维素更好的热老化电性能,这是目前用于液体填充变压器的最常见的绝缘体。

    Method of manufacturing molded buswork for power distribution systems
    18.
    发明授权
    Method of manufacturing molded buswork for power distribution systems 失效
    制造配电系统模制母线的方法

    公开(公告)号:US4615114A

    公开(公告)日:1986-10-07

    申请号:US588553

    申请日:1984-03-12

    摘要: A molded buswork and method of manufacturing the buswork, including a conductive T-shaped member having openings at the ends, insulated cables having the insulation at the ends of the cables stripped away to expose the ends of the conductors, an individual exposed conductor being crimped in each open end of the conductive member, the conductive member being supported in a cavity mold by the cables, the cavity mold being filled with a thermal-setting silicone rubber, the silicone rubber curing in the mold to encapsulate and bond to the conductive member, the exposed ends of the conductors, and the insulation on each cable.

    摘要翻译: 一种模制母线和制造母线的方法,包括在端部具有开口的导电T形构件,在电缆端部具有绝缘体的绝缘电缆剥离以露出导体的端部,单个暴露的导体被压接 在导电构件的每个开放端中,导电构件通过电缆支撑在空腔模具中,空腔模具被热固性硅橡胶填充,硅橡胶在模具中固化以封装并结合到导电构件 导体的露出端和每条电缆上的绝缘。

    Gas remover apparatus and method
    19.
    发明授权
    Gas remover apparatus and method 有权
    气体去除装置及方法

    公开(公告)号:US07842122B2

    公开(公告)日:2010-11-30

    申请号:US10697950

    申请日:2003-10-31

    IPC分类号: B01D46/46 H01T4/00

    CPC分类号: H01F27/14 H01H9/0044

    摘要: A gas remover apparatus suitable for electrical substation high-voltage transformer load tap changers and similar oil-filled equipment removes potentially hazardous and destructive gases from the air-filled volume above the insulating oil bath in which the load tap changer electrical contacts are immersed. The apparatus applies a continuous supply of nitrogen to the load tap changer, and has an orifice to maintain a slight overpressure over an extreme range of climatic conditions. The substantially continuous venting of nitrogen entrains and expels contaminants such as oxygen, water, and potentially explosive breakdown products from the oil, all of which can degrade the performance of the load tap changer.

    摘要翻译: 适用于变电站高压变压器负载抽头变换器和类似充油设备的气体去除设备从有载分接开关电气接触浸入的绝缘油浴上方的空气填充体积中去除潜在的危险和破坏性气体。 该装置对有载分接开关施加连续的氮气供应,并且具有在极端气候条件范围内保持轻微超压的孔口。 氮的基本上连续的排气夹带并排出诸如氧气,水的污染物和来自油的潜在的爆炸性破坏产物,所有这些都会降低有载分接开关的性能。

    Oil sampling system and method for electrical power devices

    公开(公告)号:US06568287B2

    公开(公告)日:2003-05-27

    申请号:US09750273

    申请日:2000-12-29

    IPC分类号: G01N100

    摘要: An oil sampling system for an electrical power device in which the oil flows through the sampling device in a closed loop with the oil containing apparatus of the electrical power device. Oil is taken in from an active region near the top of the oil containing apparatus and returned to a lower region thereof. This assures that the oil sample is representative of the oil in the system. For the case of a power transformer, the oil flow is by cooling with gravity assistance. For the case of a pumped system, such as a load tap changer, the oil flow is forced. The sampling procedure begins with connecting the sampling device in the closed loop. Oil is then passed through the sampling device until bubble free. The sampling device is then removed for analysis. The procedure does not need a flush operation or a flush container.