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公开(公告)号：WO2022106937A1
公开(公告)日：2022-05-27
申请号：PCT/IB2021/059899
申请日：2021-10-26
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： GRAVERMANN, Mark , STOLLWERCK, Gunther A. J. , BUND, Christine B. , REEKEN, Rainer , MILEK, Martin A. , GUNJACA, Mirco
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：WO2022254265A1
公开(公告)日：2022-12-08
申请号：PCT/IB2022/054400
申请日：2022-05-11
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： GRAVERMANN, Mark , STOLLWERCK, Gunther A. J. , WILSON, Christopher R. , REEKEN, Rainer , MILEK, Martin A. , BUND, Christine B. , GUNJACA, Mirco
IPC: G01R15/06 , G01R15/16 , G01R19/155 , H01R13/53 , 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.
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公开(公告)号：WO2023084361A1
公开(公告)日：2023-05-19
申请号：PCT/IB2022/060519
申请日：2022-11-01
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： STOLLWERCK, Gunther A. J. , GRAVERMANN, Mark
IPC: G01R15/16 , H01R13/53 , H01B17/28 , H02G15/107 , H01B17/00 , H01B17/26 , H01R13/66 , H02G15/072
Abstract: Sensored bushing (1) for medium or high voltages, the bushing comprising a) a bushing body (140); b) an elongated bushing conductor (560); c) a tubular sensing electrode (170), arranged coaxially around the bushing conductor, so that the sensing electrode and the bushing conductor are operable as electrodes of a primary capacitor of a voltage divider for sensing the voltage of the bushing conductor; d) a tubular shield electrode (190), arranged coaxially around the sensing electrode (170); e) a spacer (200), arranged radially between the sensing electrode (170) and the shield electrode (190) and mechanically connected to the sensing electrode and to the shield electrode to maintain the sensing electrode and the shield electrode in a fixed spatial relation to each other.
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公开(公告)号：WO2019145859A1
公开(公告)日：2019-08-01
申请号：PCT/IB2019/050540
申请日：2019-01-22
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： STOLLWERCK, Gunther A. J. , WESTKAMP, Harald , GRAVERMANN, Mark , WEICHOLD, Jens
IPC: G01R19/155
CPC classification number: G01R19/155
Abstract: VOLTAGE INDICATION DEVICE Voltage indication device (2), attachable to a medium-voltage separable plug having a rear insert comprising a coupling electrode. The voltage indication device comprises a body (241) and a voltage detector (251) having a ground contact (361), a voltage contact (261) for electrical connection to the coupling electrode; and an indicator for visually indicating presence of the medium voltage in the separable plug. The body comprises an elastically expandable support portion (406) for resiliently supporting the voltage detector (251).
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公开(公告)号：WO2023002276A1
公开(公告)日：2023-01-26
申请号：PCT/IB2022/055885
申请日：2022-06-24
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： STOLLWERCK, Gunther A. J. , GRAVERMANN, Mark
Abstract: Bushing for connecting a separable connector to a switchgear or to a transformer in a national grid for distributing electrical power at medium or high voltages. The bushing comprises a) a bushing body of a solidified, electrically insulating casting material; b) a bushing conductor, embedded in the casting material, for conducting power at medium or high voltages into the switchgear or the transformer, and c) an integrated primary capacitor, operable in a high-voltage portion of a voltage divider for sensing a voltage of the bushing conductor. The primary capacitor comprises a low-voltage electrode, a high-voltage electrode and a dielectric. The high-voltage electrode is a section of the bushing conductor. The low-voltage electrode is embedded in the casting material and comprises a circumferential wall surrounding the bushing conductor and forming a cavity. The dielectric is formed by a portion of the casting material arranged in the cavity. The circumferential wall comprises a mesh of conductive wires forming a plurality of apertures between the conductive wires to allow the casting material radially outside the circumferential wall to be mechanically connected with the casting material in the cavity.
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Patent Agency Ranking
公开(公告)号：WO2022234362A1
公开(公告)日：2022-11-10
申请号：PCT/IB2022/053240
申请日：2022-04-06
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： STOLLWERCK, Gunther A. J. , AHLMANN, Willy A. , VAN MEIJL, Hermanus Franciscus Maria , ZILLIGEN, Guenter M.
IPC: H01R4/64 , H01R9/05 , H01R103/00
Abstract: Cable shield clamp (1) for contacting a metal layer cable shield (230) arranged under an outer jacket (240) of a medium-voltage or high-voltage power cable. The clamp comprises a top panel (10) and a conductive bottom panel (20), which are attached to each other such that they face each other and are spaced from each other in a thickness direction (40) of the panels such as to receive the metal layer cable shield (230) between them, and to electrically and mechanically contact the metal layer cable shield.
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公开(公告)号：WO2022069971A1
公开(公告)日：2022-04-07
申请号：PCT/IB2021/058078
申请日：2021-09-03
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： GRAVERMANN, Mark , STOLLWERCK, Gunther A. J. , WILSON, Christopher R. , REEKEN, Rainer , MILEK, Martin A. , GUNJACA, Mirco , BUND, Christine B.
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：WO2022069967A1
公开(公告)日：2022-04-07
申请号：PCT/IB2021/057957
申请日：2021-08-31
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： STOLLWERCK, Gunther A. J. , GHOSH, Dipankar
Abstract: A high voltage capacitor for a voltage divider is described that is configured to sense an elevated voltage for medium and high voltage electrical distribution networks. The high voltage capacitor comprises a high voltage electrode, a measurement electrode, and an dielectric material disposed between the high voltage and measurement electrodes, wherein the dielectric material consists essentially of lanthanum oxide-zirconium oxide-titanium oxide (LZT) glass filler disposed in an insulating polymer matrix such that the capacitance of the dielectric material does not vary by more than +/- 0.5% in the temperature range of –20°C to 60°C.
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公开(公告)号：WO2021186272A1
公开(公告)日：2021-09-23
申请号：PCT/IB2021/051637
申请日：2021-02-26
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： STOLLWERCK, Gunther A. J. , GRAVERMANN, Mark
Abstract: Sensored insulation plug for being inserted into a rear cavity of a medium-voltage or high-voltage separable connector. The sensored insulation plug is operable to insulate a connection element of the separable connector on elevated voltage and to sense the elevated voltage. The sensored insulation plug has 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 comprises i) a high-voltage electrode for direct electrical connection to the elevated voltage having a radially inner portion and a radially outer portion forming a generally toroidal trough between the radially inner portion and the radially outer portion; ii) a sensing electrode, embedded in the plug body, at least a portion of which is arranged in the trough; iii) a dielectric formed by a portion of the insulating material and arranged in the trough between at least a portion of the sensing electrode and at least a portion of the high-voltage electrode.
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公开(公告)号：WO2021124035A1
公开(公告)日：2021-06-24
申请号：PCT/IB2020/061778
申请日：2020-12-10
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： GRAVERMANN, Mark , SCHUBERT, Bernd , STOLLWERCK, Gunther A. J. , STALDER, Michael H.
Abstract: Voltage sensing device (1) for sensing an elevated voltage in a power distribution network, comprising a) a sensored insulation plug (10) comprising - a voltage sensor for sensing the elevated voltage, comprising a high-voltage contact; - a plug mating portion (50), shaped to mate the sensored insulation plug (10) with a corresponding socket mating portion of a separable connector, wherein the high-voltage contact is arranged in the plug mating portion (50) such that the high-voltage contact can be connected to the elevated voltage of the separable connector when the sensored insulation plug (10) is mated with the separable connector; b) a tubular insulating sleeve (20), comprising a socket mating portion (100) shaped as a socket mating portion of the separable connector and mated with the plug mating portion (50) of the insulation plug (10); c) a conductive rod (30) having a first end portion (120) for electrical connection to the power conductor, and an opposed second end portion, electrically connected to the high-voltage contact and arranged in the insulating sleeve (20).
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