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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
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.
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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
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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公开(公告)号：US20230115600A1
公开(公告)日：2023-04-13
申请号：US17937847
申请日：2022-10-04
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Gunther A. J. Stollwerck , Mark Gravermann
Abstract: A sensored insulation plug for a separable connector in a MV/HV power distribution network of a national grid, operable to sense the MV/HV elevated voltage. The sensored insulation plug includes a plug body formed by a solidified insulating material, a contact piece, and a discrete coupling capacitor embedded in the insulating material and operable to harvest energy from the elevated voltage of the contact piece and optionally operable to superimpose a communication voltage signal over the elevated voltage. The sensored insulation plug further includes an integrated sensing capacitor, operable as a high-voltage capacitor in a sensing voltage divider for sensing the elevated voltage. The sensing capacitor comprises a high-voltage electrode comprising the coupling electrode and the contact piece, a tubular sensing electrode, and a dielectric comprising a portion of the insulating material.
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公开(公告)号：US20220317158A1
公开(公告)日：2022-10-06
申请号：US17753328
申请日：2020-09-14
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Gunther A. J. Stollwerck , Mark Gravermann , Bernd Schubert , Christine B. Bund , Mirco Gunjaca , Jens Weichold , Johannes Fink , Michael H. Stalder , Sebastian Eggert-Richter , Harald Westkamp , Willy A. Ahlmann , Guenter M. Zilligen
Abstract: Voltage sensor (1) comprising a voltage divider (40) for sensing an AC voltage of a HV/MV power conductor (10). For adjusting the common overall impedance of the low-voltage portion of the voltage divider towards a desired impedance, the low-voltage portion (60) comprises one or more low-voltage impedance elements (110), a plurality of adjustment impedance elements (80) and a plurality of switches. In its connect state, each switch electrically connects an adjustment impedance element in parallel to at least one of the one or more low-voltage impedance elements (110). The overall impedance of the high-voltage portion (50) and the overall impedance of the low-voltage portion (60) of the voltage divider (40) are adapted such that, by bringing one or more of the switches (90) into their connect state, the voltage divider (40) has, for an AC voltage of between 5 and 25 kV phase-to-ground and a frequency of between 40 and 70 Hertz, a dividing ratio of 3077, of 6154, of 6769 or of 10 000.
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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
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.
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Patent Agency Ranking
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
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.
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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
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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公开(公告)号：US20170030946A1
公开(公告)日：2017-02-02
申请号：US15106591
申请日：2014-12-16
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Mark Gravermann , Sebastian Eggert , Michael Petry , Werner Roehling , Friedrich A. Busemann , Bernd Schubert , Gerhard Lohmeier , Michael H. Stalder , Jens Weichold , Rainer Reeken , Andreea Sabo , Christian Weinmann , Dipankar Ghosh , Myungchan Kang , Christopher D. Sebesta
CPC classification number: G01R15/16 , G01R15/142 , G01R15/181 , 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）。 所述电压感测装置包括：a）径向内部电极（20），其可用作感测电容器的第一感测电极，用于感测所述功率承载导体的电压; 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。
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公开(公告)号：US20160134094A1
公开(公告)日：2016-05-12
申请号：US14898512
申请日：2014-06-19
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Carl J. Wentzel , Christopher D. Sebesta , Jaylon D. Loyd , David V. Mahoney , Michael D. Benson , Levent Biyikli , Jens Weichold , Mark Gravermann , Giuliano Bolcato
CPC classification number: H02G15/02 , H01B9/006 , H02G1/14 , H02G15/068
Abstract: A terminal connection device comprises a contiguous body disposed onto an inner conductor. The inner conductor includes a first end mateable with a power cable connector and a second end. The body comprises a multilayer structure having an inner conductive or semiconductive layer disposed over at least a portion of the power cable connector, an insulating layer and an outer conductive or semiconductive layer. The body surrounds the first end of the inner conductor and extending towards the second end of the inner conductor. The body can also include an electrically isolated section of conductive or semiconductive material. The terminal connection device can be a fully integrated structure, having a pre-installed connection interface, or the terminal connection device can be configured as an adapter which can be mounted in the field to a connection interface.
Abstract translation: 终端连接装置包括设置在内导体上的连续体。 内部导体包括可与电力电缆连接器配合的第一端和第二端。 主体包括多层结构，其具有设置在电力电缆连接器的至少一部分上的内部导电或半导体层，绝缘层和外部导电或半导体层。 主体围绕内部导体的第一端并延伸到内部导体的第二端。 主体还可以包括导电或半导体材料的电隔离部分。 终端连接装置可以是完全集成的结构，具有预先安装的连接接口，或者终端连接装置可以被配置为可以在现场安装到连接接口的适配器。
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公开(公告)号：US20160084888A1
公开(公告)日：2016-03-24
申请号：US14890652
申请日：2014-05-08
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Friedrich A. Busemann , Gerhard Lohmeier , Mark Gravermann
CPC classification number: G01R15/16 , G01R19/0084 , H01F38/30 , H02G15/113
Abstract: Closure (1) for receiving a section of a conductor assembly (71), comprising a housing (25) closable around the conductor assembly (71), and an electrode assembly (200), which comprises a movable portion comprising a contact surface (150) for mechanically contacting the conductor assembly (71), and a sensing electrode (140), operable as a first capacitor electrode of a sensing capacitor for sensing a voltage of the conductor (80). The closure further comprises urging means (160) for urging the movable portion of the electrode assembly (200) towards the conductor assembly (71) for establishing a mechanical surface contact between the contact surface (150) and the conductor assembly (71), when the housing (25) is closed around the conductor assembly (71).
Abstract translation: 用于接收导体组件（71）的一部分的封闭件（1），包括可围绕导体组件（71）关闭的壳体（25），以及电极组件（200），其包括可移动部分，该可移动部分包括接触表面 ）和用于感测电导体（80）的电压的感测电容器的第一电容器电极的感测电极（140）。 闭合件还包括用于将电极组件（200）的可移动部分推向导体组件（71）的推动装置（160），用于在接触表面（150）和导体组件（71）之间建立机械表面接触， 壳体（25）围绕导体组件（71）封闭。
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