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。

公开(公告)号：US20240329087A1

公开(公告)日：2024-10-03

申请号：US18577301

申请日：2022-06-24

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Gunther A. J. Stollwerck ,  Mark Gravermann

IPC: G01R15/06 ,  G01R15/16 ,  H01B17/58 ,  H01B19/00 ,  H01R13/66 ,  H02G15/184

CPC classification number: G01R15/06 ,  G01R15/16 ,  H01B17/583 ,  H01R13/6683 ,  H01B19/00 ,  H02G15/184

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.

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).

公开(公告)号：US20220413016A1

公开(公告)日：2022-12-29

申请号：US17757123

申请日：2020-12-10

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Mark Gravermann ,  Bernd Schubert ,  Gunther A. J. Stollwerck ,  Michael H. Stalder

IPC: G01R15/04 ,  G01R19/00 ,  H02B1/20

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).

公开(公告)号：US20220030701A1

公开(公告)日：2022-01-27

申请号：US17250905

申请日：2019-10-16

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Gunther A. J. Stollwerck ,  Mark Gravermann ,  Jens Weichold ,  Sebastian Eggert-Richter ,  Michael H. Stalder

IPC: H05K1/02 ,  H05K9/00 ,  H05K5/06 ,  H05K1/11 ,  G01R15/16 ,  G01R1/18

Abstract: Encapsulated PCB assembly (1) for electrical connection to a high- or medium-voltage power conductor in a power distribution network of a national grid, comprising a) a PCB (10), delimited by a peripheral edge (20) and comprising a high-tension pad (60, 62) on a voltage of at least one kilovolt, b) an electrically insulating encapsulation body (70) in surface contact with, and enveloping, the high-tension pad and at least a portion of the PCB edge adjacent to the high-tension pad, c) a shielding layer (80) on an external surface (90) of the encapsulation body and for being held on electrical ground or on a low voltage to shield at least a low-voltage portion of the PCB. The high-tension pad extends to the peripheral edge of the PCB.

公开(公告)号：US20180374644A1

公开(公告)日：2018-12-27

申请号：US16063337

申请日：2016-12-09

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Gunther A.J. Stollwerck ,  Mark Gravermann ,  Mark W. Muggli

IPC: H01G4/255 ,  C08L23/16 ,  G01R15/06 ,  G01R15/16 ,  H01B3/28 ,  H01B3/44 ,  H01B3/46 ,  H01G4/20 ,  H01G4/258 ,  H01G4/28

Abstract: A capacitor comprises an electrically conductive cylinder, an electrically conductive or semi-conductive cylindrical shell or shell segment arranged concentrically around the electrically conductive cylinder, and a dielectric arranged between the electrically conductive cylinder and the electrically conductive or semi-conductive cylindrical shell or shell segment. The dielectric comprises a particulate composite including a matrix material having a non-zero (e.g. negative) thermal coefficient of relative permittivity and a particulate filler material blended with the matrix material, the particulate filler material having an opposite (e.g. positive thermal) coefficient of relative permittivity. The positive thermal coefficient of relative permittivity is thereby selected such that the capacitance value of the capacitor is constant within a stability margin over a predefined temperature interval.

公开(公告)号：US09739820B2

公开(公告)日：2017-08-22

申请号：US14897680

申请日：2014-06-19

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Mark Gravermann ,  Friedrich A. Busemann ,  Gerhard Lohmeier ,  Jens Weichold ,  Bernd Schubert ,  Michael H. Stalder ,  Pasquale Zanoli ,  Giuliano Bolcato

IPC: G01R27/26 ,  G01R31/02 ,  G01R15/16 ,  G01R31/12 ,  H01B9/00

CPC classification number: G01R31/021 ,  G01R15/16 ,  G01R27/26 ,  G01R27/2605 ,  G01R31/1272 ,  H01B9/006

Abstract: A conductor assembly for a power network includes an inner conductor, an insulating layer arranged concentrically around the inner conductor, and a sensing electrode, arranged radially outward of the insulating layer, and operable as a first electrode of a sensing capacitor of a voltage sensor. The conductor assembly further includes a voltage pickup element having electrically conductive major surfaces, the first major surface being in a surface contact with the sensing electrode. The conductor assembly further includes an electrode wire, in electrical and mechanical contact with the voltage pickup element, for electrically connecting the voltage pickup element with an electric or electronic component disposed remote from the sensing electrode.

公开(公告)号：US20160139181A1

公开(公告)日：2016-05-19

申请号：US14897688

申请日：2014-06-19

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Mark Gravermann ,  Friedrich A. Busemann ,  Gerhard Lohmeier ,  Jens Weichold ,  Bernd Schubert ,  Michael H. Stalder ,  Pasquale Zanoli ,  Giuliano Bolcato

IPC: G01R15/16 ,  H01B9/00 ,  H01B7/02 ,  G01R19/00

CPC classification number: G01R15/16 ,  G01R19/0084 ,  G01R27/26 ,  G01R27/2605 ,  G01R31/021 ,  G01R31/1272 ,  H01B7/02 ,  H01B9/006

Abstract: Conductor assembly (1) for a power network, which comprises—an inner conductor (5) defining radial and axial directions,—an insulating layer (10) arranged around at least an axial section of the inner conductor, and—a sensing electrode (40), arranged radially outward of the insulating layer, and operable as a first electrode of a sensing capacitor of a capacitive voltage sensor, in which sensing capacitor the inner conductor is operable as a second electrode. The conductor assembly further comprises an electrically insulating spacer element (25), arranged radially between the insulating layer and the sensing electrode.

Abstract translation: 一种用于电力网络的导体组件（1），其包括限定径向和轴向方向的内部导体（5）， - 围绕所述内部导体的至少一个轴向部分布置的绝缘层（10）和 - 感测电极 40），其布置在绝缘层的径向外侧，并且可操作为电容式电压传感器的感测电容器的第一电极，其中感测电容器内部导体可操作为第二电极。 导体组件还包括电绝缘隔离元件（25），其布置在绝缘层和感测电极之间的径向上。

公开(公告)号：US20160134065A1

公开(公告)日：2016-05-12

申请号：US14898801

申请日：2014-06-19

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Mark Gravermann ,  Friedrich A. Busemann ,  Gerhard Lohmeier ,  Jens Weichold ,  Bernd Schubert ,  Giuliano Bolcato ,  Werner Roehling ,  Michael Petry

IPC: H01R24/38 ,  H01R43/16

CPC classification number: H01R24/38 ,  H01R13/53 ,  H01R13/6683 ,  H01R43/16 ,  H01R2101/00

Abstract: Cable connection device (2) for connecting a power cable to an electrical installation of a power network, comprising a conductor element (11) having a first end portion (21), a second end portion (31), and a middle portion (41) disposed between the first and the second end portion. The conductor element comprises a connector socket (50), arranged at the first end portion, for mating with a cable plug. The connector socket is integrally formed with the middle portion.

Abstract translation: 一种用于将电力电缆连接到电力网络的电气设备的电缆连接装置（2），包括具有第一端部（21），第二端部（31）和中间部分（41）的导体元件（11） ）设置在第一和第二端部之间。 导体元件包括设置在第一端部处以与电缆插头配合的连接器插座（50）。 连接器插座与中间部分一体形成。

公开(公告)号：US20140370741A1

公开(公告)日：2014-12-18

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: H01R13/58 ,  H01R43/26 ,  H01R13/66

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 (10) for connecting an end of a medium- or high-voltage power cable (42) to a connection point, the terminal connection device (10) comprising an interface cable (12) having first and second end portions, comprising an inner conductor (14) and a conductive or semiconductive layer (18). The terminal connection device further comprises a first stress control tube (36) comprising—a stress control element (38), and an insulating layer (40) arranged around the stress control element (38), wherein the first stress control tube (36) is mounted on the first end portion of the interface cable (12). The terminal connection device further comprises a first cable connector (24) for connecting the interface cable (12) to the power cable (42), the first cable connector (24) being connected to the second end portion of the interface cable (12); The terminal connection device (10) further comprises a second stress control tube (36′) comprising a stress control element (38), and an insulating layer (40) arranged around the stress control element (38), wherein the second stress control tube (36′) is mounted over the second end portion of the interface cable (12) and at least a portion of the first cable connector (24); The terminal connection device further comprises one or more tubular shrinkable sleeves (52, 52′, 52″). At least a portion of one of the tubular shrinkable sleeves (52, 52′, 52″) extends over at least a portion of the first stress control tube (36). At least a portion of one of the tubular shrinkable sleeves (52, 52′, 52″) extends over at least a portion of the second stress control tube (36′). The portion of the tubular shrinkable sleeve (52, 52″) extending over at least a portion of the first stress control tube (36) is shrunk down around at least a portion of the first stress control tube (36).