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    SENSORED INSULATION PLUG
    2.
    发明公开
    SENSORED INSULATION PLUG 审中-公开

    公开(公告)号：US20230305039A1

    公开(公告)日：2023-09-28

    申请号：US18249665

    申请日：2021-10-26

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Mark Gravermann ,  Gunther A. J. Stollwerck ,  Christine B. Bund ,  Rainer Reeken ,  Martin A. Milek ,  Mirco Gunjaca

    IPC: G01R15/06 ,  G01R15/16 ,  H01B17/56 ,  H01B3/40

    CPC classification number: G01R15/06 ,  G01R15/16 ,  H01B17/56 ,  H01B3/40

    Abstract: Sensored insulation plug (1) for being inserted into a separable connector in a power distribution network comprises a plug body (140) formed by a solidified insulating material (610), and a primary capacitor (150), operable as a high-voltage capacitor in a voltage divider for sensing the elevated voltage. The primary capacitor includes a high-voltage electrode (160) for direct electrical connection to the elevated voltage. A sensing electrode (170) of a tubular shape, embedded in the plug body (140), arranged around the high-voltage electrode, comprises a deformable mesh of conductive wires forming a plurality of apertures between the wires to allow portions of the insulating material (610) on opposite sides of the mesh to be mechanically connected with each other by insulating material in the apertures while the insulating material solidifies and thereafter. A dielectric formed by a portion (180) of the insulating material (610) is arranged between the sensing electrode (170) and the high-voltage electrode (160).

    SENSORED INSULATION PLUG
    3.
    发明公开
    SENSORED INSULATION PLUG 审中-公开

    公开(公告)号：US20230361503A1

    公开(公告)日：2023-11-09

    申请号：US18245677

    申请日：2021-09-03

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Mark Gravermann ,  Gunther A. J. Stollwerck ,  Christopher R. Wilson ,  Rainer Reeken ,  Martin A. Milek ,  Mirco Gunjaca ,  Christine B. Bund

    IPC: H01R13/53 ,  G01R15/06 ,  G01R19/00 ,  H01R13/6581

    CPC classification number: H01R13/53 ,  G01R15/06 ,  G01R19/0084 ,  H01R13/6581

    Abstract: A sensored insulation plug for a medium-voltage or high-voltage separable connector in a power distribution network of a national grid, and operable to insulate a connection element of the separable connector on elevated voltage and to sense the elevated voltage. The sensored insulation plug has an outer shape generally symmetrical about a plug axis defining axial directions and radial directions, and comprises a plug body formed by an insulating material, and a primary capacitor, operable as a high-voltage capacitor in a voltage divider for sensing the elevated voltage. The primary capacitor has a high-voltage electrode for direct electrical connection to the elevated voltage, a sensing electrode of a tubular shape, embedded in the plug body, arranged around the high-voltage electrode and extending, in axial directions, between a first axial edge position (B) and a second axial edge position (A), and a dielectric formed by a portion of the insulating material arranged between at least a portion of the sensing electrode and at least a portion of the high-voltage electrode. A shield electrode of generally tubular shape, embedded in the plug body, is arranged around the sensing electrode and extending in axial directions at least between the first axial edge (B) position and the second axial edge position (A), and comprises a protruding portion extending in axial direction beyond the first axial edge position (B), such as to enhance electrical shielding, by the shield electrode, of the sensing electrode against external electrical fields.

    SENSORED INSULATION PLUG WITH DETECTION CONTACT
    4.
    发明申请
    SENSORED INSULATION PLUG WITH DETECTION CONTACT 有权

    公开(公告)号：US20250004016A1

    公开(公告)日：2025-01-02

    申请号：US18562096

    申请日：2022-05-11

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Mark Gravermann ,  Gunther A. J. Stollwerck ,  Christopher R. Wilson ,  Rainer Reeken ,  Martin A. Milek ,  Christine B. Bund ,  Mirco Gunjaca

    IPC: G01R15/04 ,  G01R19/00 ,  H01R13/66

    Abstract: Sensored insulation plug for a medium voltage or high-voltage separable connector in a national grid, and operable to insulate a connection element of the separable connector on an elevated voltage and to simultaneously detect and sense the elevated voltage. The sensored insulation plug comprises a) a plug body formed by a solidified insulating material, b) an externally accessible detection contact, c) a primary capacitor, operable as a high-voltage capacitor in a sensing voltage divider for sensing the elevated voltage, the primary capacitor having i) a high-voltage electrode; ii) a sensing electrode embedded in the plug body; iii) a dielectric formed by a first portion of the insulating material, and d) a testpoint capacitor, operable as a high-voltage capacitor in a detection voltage divider for detecting the elevated voltage and comprising i) the high-voltage electrode, ii) a testpoint electrode, embedded in the plug body and electrically connected to the detection contact, and iii) a dielectric formed by a second portion of the insulating material.

    ADJUSTABLE VOLTAGE SENSOR
    5.
    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).

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