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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
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).
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公开(公告)号：US20190086444A1
公开(公告)日：2019-03-21
申请号：US16087768
申请日：2016-12-23
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Mark Gravermann , Gunther A.J. Stollwerck , Michael H. Stalder , Gerhard Lohmeier , Bernd Schubert , Rainer Reeken , Jens Weichold
Abstract: Elastic sleeve (1) for electrically insulating a HV/MV power conductor in a power network, comprising a) a shrinkable or expandable elastic sleeve body (10); b) a receiving space (20) in the sleeve body, for receiving the power conductor; c) a cavity (30) formed in the sleeve body; and d) a divider assembly (40), arranged, at least partially, in the cavity and comprising a plurality of discrete impedance elements, operable as a voltage divider for sensing a voltage of an inner conductor of the power conductor.
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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.
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公开(公告)号：US10345340B2
公开(公告)日：2019-07-09
申请号：US15106648
申请日：2014-12-16
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Mark Gravermann , Friedrich A. Busemann , Bernd Schubert , Gerhard Lohmeier , Andreea Sabo , Rainer Reeken , Michael H. Stalder , Christian Weinmann , Sebastian Eggert , Dipankar Ghosh , Myungchan Kang , Christopher D. Sebesta
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 5×10^−6 1/K at 20 C.
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公开(公告)号：US10955442B2
公开(公告)日：2021-03-23
申请号：US16087768
申请日：2016-12-23
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Mark Gravermann , Gunther A. J. Stollwerck , Michael H. Stalder , Gerhard Lohmeier , Bernd Schubert , Rainer Reeken , Jens Weichold
Abstract: Elastic sleeve (1) for electrically insulating a HV/MV power conductor in a power network, comprising a) a shrinkable or expandable elastic sleeve body (10); b) a receiving space (20) in the sleeve body, for receiving the power conductor; c) a cavity (30) formed in the sleeve body; and d) a divider assembly (40), arranged, at least partially, in the cavity and comprising a plurality of discrete impedance elements, operable as a voltage divider for sensing a voltage of an inner conductor of the power conductor.
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Patent Agency Ranking
公开(公告)号：US10215778B2
公开(公告)日：2019-02-26
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
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.
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公开(公告)号：US20160341768A1
公开(公告)日：2016-11-24
申请号：US15106648
申请日：2014-12-16
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Mark Gravermann , Friedrich A. Busemann , Bernd Schubert , Gerhard Lohmeier , Andreea Sabo , Rainer Reeken , Michael H. Stalder , Christian Weinmann , Sebastian Eggert , Dipankar Ghosh , Myungchan Kang , Christopher D. Sebesta
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 5x10̂−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 / K。
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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：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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