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    VOLTAGE SENSOR
    1.
    发明申请
    VOLTAGE SENSOR 审中-公开
    电压传感器

    公开(公告)号：WO2015095150A1

    公开(公告)日：2015-06-25

    申请号：PCT/US2014/070530

    申请日：2014-12-16

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： GRAVERMANN, Mark ,  EGGERT, Sebastian ,  PETRY, Michael ,  ROEHLING, Werner ,  BUSEMANN, Friedrich ,  SCHUBERT, Bernd ,  LOHMEIER, Gerhard ,  STALDER, Michael H. ,  WEICHOLD, Jens ,  REEKEN, Rainer ,  SABO, Andreea ,  WEINMANN, Christian ,  GHOSH, Dipankar ,  KANG, Myungchan ,  SEBESTA, Christopher D.

    IPC: G01R19/00

    CPC classification number: G01R15/16 ,  G01R19/0084

    Abstract: Voltage sensor (1) for a high- or medium-voltage power-carrying conductor for a power network, such as an inner conductor of a power cable or a cable connector or a bus bar. The voltage sensor has a tubular shape and an axial passageway (40), which can receive the conductor. The voltage sensing device comprises a) a radially-inner electrode (20), operable as a first sensing electrode of a sensing capacitor for sensing the voltage of the power-carrying conductor, b) a radially-outer electrode (30), operable as a second sensing electrode of the sensing capacitor, and c) a solid carrier element (10), at least a first portion of which is arranged between the inner electrode and the outer electrode, the first portion being operable as a dielectric of the sensing capacitor. The sensor can be accommodated in a cable accessory. The carrier element may comprise ceramic material to increase accuracy.

    Abstract translation: 用于电力网络的高压或中压供电导体的电压传感器（1），例如电力电缆或电缆连接器或汇流条的内部导体。 电压传感器具有管状形状和可接收导体的轴向通道（40）。 电压感测装置包括：a）径向内部电极（20），其可操作为用于感测电力承载导体的电压的感测电容器的第一感测电极，b）径向外部电极（30），其可操作为 感测电容器的第二感测电极，以及c）固体载体元件（10），其至少第一部分布置在所述内部电极和所述外部电极之间，所述第一部分可操作为所述感测电容器的电介质 。 传感器可以容纳在电缆附件中。 载体元件可以包括陶瓷材料以提高精度。

    VOLTAGE SENSING DEVICE
    2.
    发明申请
    VOLTAGE SENSING DEVICE 审中-公开
    电压感应装置

    公开(公告)号：WO2015095158A1

    公开(公告)日：2015-06-25

    申请号：PCT/US2014/070540

    申请日：2014-12-16

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： GRAVERMANN, Mark ,  BUSEMANN, Friedrich ,  SCHUBERT, Bernd ,  LOHMEIER, Gerhard ,  SABO, Andreea ,  REEKEN, Rainer ,  STALDER, Michael ,  WEINMANN, Christian ,  EGGERT, Sebastian ,  GHOSH, Dipankar ,  KANG, Myungchan ,  SEBESTA, Christopher D.

    IPC: G01R19/00 ,  G01R15/14

    CPC classification number: G01R15/16 ,  G01R19/0084

    Abstract: The invention relates to a voltage sensing device for a high and/or medium-voltage power-carrying conductor, the voltages sensing device comprising: • a carrier element (3) with a passageway for receiving the power-carrying conductor, • wherein the carrier element comprises an electrode (4) extending in an axial direction of the passageway of the carrier element and operable as a first electrode of the voltage sensing device, wherein • a conductor (1) of the power cable is operable as the second electrode of the voltage sensing device and wherein • the carrier element has a coefficient of thermal expansion that is less than 5x10^-6 1/K at 20 C.

    Abstract translation: 本发明涉及一种用于高和/或中压供电导体的电压感测装置，所述电压感测装置包括：•载体元件（3），其具有用于接收所述功率承载导体的通道，其中所述载体 元件包括沿着载体元件的通道的轴向延伸并可用作电压感测装置的第一电极的电极（4），其中电力电缆的导体（1）可操作为第二电极 电压感测装置，其中•载体元件的热膨胀系数在20℃时小于5×10 -6 -6 / K。

    HIGH-VOLTAGE IMPEDANCE ASSEMBLY
    4.
    发明申请
    HIGH-VOLTAGE IMPEDANCE ASSEMBLY 审中-公开

    公开(公告)号：WO2018229675A1

    公开(公告)日：2018-12-20

    申请号：PCT/IB2018/054310

    申请日：2018-06-13

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： STALDER, Michael H. ,  EGGERT, Sebastian ,  FANGRAT, Rainer ,  GRAVERMANN, Mark ,  WEICHOLD, Jens ,  STOLLWERCK, Gunther A.J. ,  SCHUBERT, Bernd ,  VAN MEIJL, Hermanus Franciscus Maria ,  SABO, Andreea

    IPC: G01R15/04 ,  G01R15/06 ,  H01G4/30

    Abstract: Impedance assembly (2) for use in a voltage divider for sensing an AC voltage of at least 1 kV versus ground of a power-carrying conductor distributing electrical energy in a grid. The impedance assembly comprises a) a printed circuit board (131) comprising one or more dielectric board layers (210, 215, 220), b) an externally accessible high-voltage contact (100), c) an externally accessible low-voltage contact (110), spaced from the high-voltage contact by at least 30 mm, and d) at least two dividing capacitors (91), connected in series between the high- voltage contact and the low-voltage contact and operable as a high-voltage side of the voltage divider. Each dividing capacitor has two electrodes formed by conductive areas (301, 302, 303, 304, 305, 306), arranged on opposed surface portions of a specific dielectric board layer, and a dielectric comprising a portion of the specific dielectric board layer on which the electrodes are arranged. Instead of the dividing capacitors, the impedance assembly may comprise a resistor layer.

    CAPACITOR, CAPACITIVE VOLTAGE SENSOR AND METHOD FOR MANUFACTURING A CAPACITOR
    5.
    发明申请
    CAPACITOR, CAPACITIVE VOLTAGE SENSOR AND METHOD FOR MANUFACTURING A CAPACITOR 审中-公开
    电容器，电容式电压传感器及制造电容器的方法

    公开(公告)号：WO2017103755A1

    公开(公告)日：2017-06-22

    申请号：PCT/IB2016/057494

    申请日：2016-12-09

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： STOLLWERCK, Gunter A. J. ,  GRAVERMANN, Mark ,  WEICHOLD, Jens ,  SABO, Andreea

    IPC: H01G4/35 ,  G01R15/16

    CPC classification number: H01G4/258 ,  G01R15/06 ,  G01R15/16 ,  H01G4/20 ,  H01G4/255 ,  H01G4/28 ,  H01G4/35

    Abstract: A capacitor comprises an electrically conductive cylinder, an electrically conductive or semi-conductive cylindrical shell or shell segment arranged concentrically around the electrically conductive cylinder, and a dielectric arranged between the electrically conductive cylinder and the electrically conductive or semi-conductive cylindrical shell or shell segment. The dielectric comprises at least one dielectric layer having a positive thermal coefficient of relative permittivity, and at least one compensation dielectric layer having a negative thermal coefficient of relative permittivity. The thermal coefficient of relative permittivity is thereby selected such that the capacitance value of the capacitor is constant within a stability margin over a predefined temperature interval.

    Abstract translation: 电容器包括导电圆柱体，围绕导电圆柱体同心布置的导电或半导体圆柱形壳体或壳体部分，以及布置在导电圆柱体和导电圆柱体之间的电介质 半导体圆柱壳或壳段。 电介质包括具有相对介电常数正热系数的至少一个电介质层和具有负相对电容率热系数的至少一个补偿电介质层。 由此选择相对介电常数的热系数，使得电容器的电容值在预定温度区间内的稳定裕度内恒定。

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