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    • 34. 发明授权
    • Tap changer monitoring
    • 分接开关监控
    • US07145760B2
    • 2006-12-05
    • US10450579
    • 2001-12-14
    • Bengt-Olof StenestamGunnar Andersson
    • Bengt-Olof StenestamGunnar Andersson
    • H01H47/00
    • G01R31/3274G01R31/333H01F29/04H01H2009/0061
    • A method and means for diagnosing transformer tap changers is provided. Pressure is monitored in an insulating liquid of a tap changer for a period of time in which switching of the tap changer is carried through. Switching-related information is extracted from the pressure diagram. Quantities from pressure peaks are related to specific arcings of the switching sequence. Early error detection is achieved, whereby transformed failures may be avoided. Repeated measurements may be followed by trend evaluation. If a trend indicating tap changer problems is detected, an alarm signal is triggered. The transformer may be switched off if the pressure exceeds a predetermined emergency value. Information of the base pressure in the tap changer may be extracted and converting it to level of insulating liquid.
    • 提供了用于诊断变压器抽头变换器的方法和装置。 在分接开关的绝缘液体中监测压力,持续一段时间,分接开关切换进行。 从压力图提取开关相关信息。 压力峰值的数量与切换序列的特定弧线有关。 实现早期错误检测,从而可以避免变形的故障。 重复测量可以跟随趋势评估。 如果检测到指示分接开关故障的趋势,则触发报警信号。 如果压力超过预定的紧急值,变压器可能会关闭。 可以提取分接开关中的基础压力的信息,并将其转换成绝缘液体的水平。
    • 37. 发明授权
    • Medical containers
    • 医疗容器
    • US06713137B1
    • 2004-03-30
    • US09448922
    • 1999-11-23
    • Gunnar AnderssonVittorio Sala
    • Gunnar AnderssonVittorio Sala
    • B32B2732
    • B32B27/32Y10T428/1334Y10T428/1352Y10T428/2495Y10T428/2826Y10T428/31913
    • The present invention relates to a flexible polyolefin multilayered film for preparation of medical containers by self sealing, comprising at least a first outer layer and a second layer, each of the layers consisting essentially only of one or more polypropylene based polymers selected from the group consisting of polypropylene homopolymers, polypropylene copolymers having randomly distribute ethylene units and mixtures of said homopolymers and said copolymers, wherein said second layer has a melting point in the range between 120° C. and 150°, said first outer layer has a lower flexibility and a higher melting point than said second layer, and said second comprises a polypropylene polyethylene copolymer with a higher amount of ethylene units than said outer layer. The present invention also relates to medical containers made of or comprising the above film.
    • 本发明涉及一种用于通过自密封制备医疗容器的柔性聚烯烃多层膜,其包括至少第一外层和第二层,每个层基本上仅由一种或多种聚丙烯基聚合物组成,所述聚丙烯基聚合物选自 的聚丙烯均聚物,具有随机分布乙烯单元的聚丙烯共聚物和所述均聚物和所述共聚物的混合物,其中所述第二层的熔点在120℃至150℃的范围内,所述第一外层具有较低的柔性和 比所述第二层高的熔点,而所述第二层包括具有比所述外层更高量的乙烯单元的聚丙烯聚乙烯共聚物。 本发明还涉及由上述膜制成或包含上述膜的医疗容器。