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    Terminal connection device for a power cable
    22.
    发明授权
    Terminal connection device for a power cable 有权
    电源线端子连接装置

    公开(公告)号：US09429594B2

    公开(公告)日：2016-08-30

    申请号：US14368030

    申请日：2012-12-19

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Giuliano Bolcato ,  Jens Weichold ,  Pasquale J. Zanoli ,  Mark Gravermann ,  Michael H. Stalder ,  Holger Kurzhals ,  Sebastian Eggert ,  Christian Weinmann

    IPC: H02G15/00 ,  G01R15/16 ,  H02G15/184 ,  G01R15/14 ,  G01R15/06 ,  G01R19/00 ,  H01B9/00 ,  H01R13/58 ,  H01R13/66 ,  H01R43/26 ,  G01R15/18

    CPC classification number: H01R13/5845 ,  G01R15/06 ,  G01R15/142 ,  G01R15/16 ,  G01R15/181 ,  G01R19/0084 ,  H01B9/006 ,  H01R13/6683 ,  H01R43/26 ,  H02G15/064 ,  H02G15/184 ,  Y10T29/49208

    Abstract: Terminal connection device for connecting an end of a medium- or high-voltage power cable to a connection point, comprising an interface cable, an inner conductor and a conductive or semiconductive layer. The terminal connection device further comprises a first stress control tube comprising a stress control element and an insulation layer arranged around the stress control element. The terminal connection device further comprises a first cable connector for connecting the interface cable to the power cable. The terminal connection device further comprises a second stress control tube comprising a stress control element and an insulating layer arranged around the stress control element, wherein the second stress control tube is mounted over the second end portion of the interface cable and at least a portion of the first cable connector. The terminal connection device further comprises one or more tubular shrinkable sleeves.

    Abstract translation: 用于将中压或高压电力电缆的一端连接到连接点的端子连接装置，包括接口电缆，内部导体和导电或半导体层。 端子连接装置还包括第一应力控制管，其包括应力控制元件和布置在应力控制元件周围的绝缘层。 终端连接装置还包括用于将接口电缆连接到电力电缆的第一电缆连接器。 端子连接装置还包括第二应力控制管，其包括应力控制元件和围绕应力控制元件布置的绝缘层，其中第二应力控制管安装在接口电缆的第二端部上方，并且至少一部分 第一个电缆连接器。 终端连接装置还包括一个或多个管状可收缩套管。

    ADJUSTABLE VOLTAGE SENSOR
    23.
    发明公开
    ADJUSTABLE VOLTAGE SENSOR 审中-公开

    公开(公告)号：US20230384350A1

    公开(公告)日：2023-11-30

    申请号：US18321241

    申请日：2023-05-22

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Mark Gravermann ,  Gunther A. J. Stollwerck ,  Jens Weichold ,  Christine B. Bund ,  Mirco Gunjaca ,  Rainer Reeken ,  Martin A. Milek ,  Sebastian Eggert-Richter ,  Joerg Hahn ,  Michael H. Stalder ,  Christian Weinmann ,  Holger J. Kurzhals ,  Christopher R. Wilson

    IPC: G01R15/06 ,  G01R19/00

    CPC classification number: G01R15/06 ,  G01R19/0084

    Abstract: A voltage sensor for sensing an AC voltage of a HV/MV power conductor comprises a capacitive voltage divider for sensing the AC voltage having one or more high-voltage capacitors electrically connected in series with each other and a low-voltage portion comprising one or more low-voltage capacitors electrically connected with each other between the high-voltage portion and electrical ground. The voltage divider also comprises a signal contact, electrically arranged between the high-voltage portion and the low-voltage portion, for providing a signal voltage indicative of the AC voltage. The low-voltage portion further comprises a plurality of electrically actuated adjustable impedance elements configured to adjust the common overall impedance of the low-voltage portion towards a desired impedance. Each electrically actuated adjustable impedance element comprises one or more associated adjustment capacitors and at least one electrically actuatable element, wherein each electrically actuatable element is associated with and electrically connected to one or more of the adjustment capacitors and wherein each electrically actuatable element is configured to achieve one of a connected state and a disconnected state. In the connected state, an associated adjustment capacitor is electrically connected in parallel to at least one of the one or more low-voltage capacitors. In the disconnected state, the associated adjustment capacitor is electrically disconnected from the low-voltage capacitor(s).

    MODULE AND SYSTEM FOR BUILDING A VOLTAGE DIVIDER FOR SENSING A VOLTAGE
    26.
    发明申请
    MODULE AND SYSTEM FOR BUILDING A VOLTAGE DIVIDER FOR SENSING A VOLTAGE 有权

    公开(公告)号：US20210141001A1

    公开(公告)日：2021-05-13

    申请号：US17048364

    申请日：2019-05-15

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Mark Gravermann ,  Jens Weichold ,  Gunther A. J. Stollwerck

    IPC: G01R15/04 ,  G01R19/00

    Abstract: The invention relates to a module (1) for building a voltage divider for sensing a voltage of an inner conductor of a high or medium voltage power conductor, wherein the module comprises: —at least one discrete impedance element (3), —a first connector (5) and a second connector (6), wherein the second connector is adapted to be mechanically and electrically connected with a connector identical to the first connector of a further module for building the voltage divider according to the invention, and wherein the first connector is adapted to be mechanically and electrically connected with a connector identical to the second connector of a further module for building the voltage divider according to the invention, —wherein the at least one impedance element is electrically connected with the first and the second connector, and —wherein the module further comprises mechanical fixing (21) means for fixing the module to a high or medium voltage power conductor.

    SENSOR WITH DISCRETE IMPEDANCE ELEMENTS FOR HIGH VOLTAGE CONNECTORS
    27.
    发明申请
    SENSOR WITH DISCRETE IMPEDANCE ELEMENTS FOR HIGH VOLTAGE CONNECTORS 审中-公开

    公开(公告)号：US20200278381A1

    公开(公告)日：2020-09-03

    申请号：US16646428

    申请日：2018-09-28

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Harald Westkamp ,  Bernd Schubert ,  Mark Gravermann ,  Jens Weichold

    IPC: G01R15/06 ,  G01R15/16 ,  G01R15/18 ,  G01R1/20 ,  H01R13/66

    Abstract: The invention relates to a sensor (3) for measuring a voltage in a HV/MV power network in a separable connector (2), the sensor comprising: —an adapter element (11) comprising a high voltage connection adapted to be mechanically and electrically coupled to a high voltage conductor (7) of the separable connector (2) and to receive HV/MV voltage from the separable connector, —a sensor body (12) adapted to be mechanically and electrically coupled to the adapter element (11) and comprising a divider assembly (24) with a plurality of discrete impedance elements, which are electrically connected in series such as to be operable as a voltage divider for sensing a voltage and a low voltage connection (42) configured to provide a low voltage signal corresponding to a high voltage signal present in the HV/MV power network, wherein the adapter element (11) and the sensor body (12) are separate elements that are adapted to be installed to the separable connector (2), wherein the adapter element is configured to be installed between the separable connector and the sensor body.

    Multilayer stress control article and dry termination for medium and high voltage cable applications
    28.
    发明授权
    Multilayer stress control article and dry termination for medium and high voltage cable applications 有权

    公开(公告)号：US10720767B2

    公开(公告)日：2020-07-21

    申请号：US16477342

    申请日：2018-01-25

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Robert J. Schubert ,  Christopher J. Evoniuk ,  Jens Weichold ,  Andrew C. Lottes

    IPC: H02G15/064

    Abstract: A tubular stress control article having an axial bore with a length comprises a first and innermost layer formed from an electrical stress control composition having a filler material comprising nanosilica-modified inorganic particles and a discontinuous arrangement of conductive material dispersed in an elastomeric material. At least a portion of the conductive material is in durable electrical contact with the inorganic particles. The article further comprises a second layer disposed on the first layer, the second layer comprising an electrical insulation material. The article also comprises a third layer disposed on the second layer, the third layer comprising an elastomeric stress control material. The article further comprises a fourth layer disposed on the third layer, the fourth layer comprising a track-resistant elastomeric material. Each of the first, second, third, and fourth layers are substantially continuous along the length of the axial bore.

    Voltage sensing device
    29.
    发明授权
    Voltage sensing device 有权

    公开(公告)号：US10338103B2

    公开(公告)日：2019-07-02

    申请号：US15510832

    申请日：2015-09-25

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Mark Gravermann ,  Gunther A. J. Stollwerck ,  Michael H. Stalder ,  Hermanus Franciscus Maria van Meijl ,  Jens Weichold ,  Benjamin Muenstermann

    IPC: G01R19/00 ,  G01R15/06 ,  G01R15/16

    Abstract: The invention relates to a voltage sensing device (1) for a high and/or medium voltage power carrying conductor (2), the voltage sensing device comprising: a radially outer electrode (3) operable as a first sensing electrode of a sensing capacitor for sensing the voltage of the power carrying conductor; a radially inner electrode (2, 6) operable as a second sensing electrode of the sensing capacitor; a dielectric material (5) arranged between the inner and the outer electrode (3, 2, 6), wherein the coefficient of thermal expansion of the material of at least one electrode (3, 2, 6) is selected such that it compensates the temperature dependent parameters of the dielectric material (5) and/or the other electrode (3, 2, 6), that influences the capacity of the voltage sensing capacitor.

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