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.

公开(公告)号：US20210239738A1

公开(公告)日：2021-08-05

申请号：US16972163

申请日：2019-06-13

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Jaylon D. Loyd ,  Christopher R. Wilson ,  Carl J. Wentzel ,  Richard D. Twigg ,  Harald Westkamp ,  Mark Gravermann ,  Gunther A. J. Stollwerck ,  Jens Weichold

IPC: G01R15/14 ,  G01R1/04 ,  H05K1/03 ,  H05K1/16

Abstract: A sensor for a separable connector includes an elongate plug body extending along an axis and includes an insulating resin. The plug body includes a high voltage connection at least partially encased by the insulating resin and includes a low voltage connection spaced along the axis from the high voltage connection. The plug body also includes a substrate at least partially encased in the insulating resin and extending around the axis between a high voltage portion and a low voltage portion of the substrate. A circuit is disposed on the substrate and extends from the high voltage portion to the low voltage portion of the substrate. The circuit includes a plurality of first impedance elements electrically coupled between the high and low voltage connections. One or more second impedance elements are electrically coupled to the circuit via the low voltage connection to form a voltage divider.

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

IPC: G01R15/16 ,  G01R19/00

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.

公开(公告)号：US10027071B2

公开(公告)日：2018-07-17

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 ,  H01R13/53 ,  H01R43/16 ,  H01R13/66 ,  H01R101/00

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

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

公开(公告)号：US20170234908A1

公开(公告)日：2017-08-17

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

IPC: G01R15/06 ,  G01R19/00 ,  G01R15/16

CPC classification number: G01R15/06 ,  G01R15/16 ,  G01R19/0084

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

公开(公告)号：US11280815B2

公开(公告)日：2022-03-22

申请号：US16961974

申请日：2019-01-22

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Gunther A. J. Stollwerck ,  Harald Westkamp ,  Mark Gravermann ,  Jens Weichold

IPC: G01R19/155

Abstract: 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).

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

IPC: G01R15/06 ,  G01R19/00 ,  H02G15/18 ,  H05K1/18

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.

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

IPC: G01R15/16 ,  G01R19/00 ,  G01R15/14 ,  G01R15/18

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.

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

IPC: G01R15/16 ,  G01R19/00

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。

公开(公告)号：US09460832B2

公开(公告)日：2016-10-04

申请号：US14765440

申请日：2014-01-29

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Mark Gravermann ,  Gerhard Lohmeier ,  Michael Stalder ,  Friedrich Busemann ,  Jens Weichold ,  Bernd Schubert

IPC: H01B9/00 ,  H01R9/05 ,  H02G15/04 ,  H02G15/18 ,  G01R15/16 ,  H01B7/02 ,  H01B7/17 ,  H01B13/06 ,  H01B13/22 ,  H05K3/30 ,  G01R1/06

CPC classification number: H01B9/00 ,  G01R1/06 ,  G01R15/16 ,  H01B7/0216 ,  H01B7/17 ,  H01B13/06 ,  H01B13/22 ,  H01R9/0515 ,  H02G15/04 ,  H02G15/18 ,  H02G15/1806 ,  H05K3/30

Abstract: Sleeve (1) for a high- or medium-voltage power cable (120) having an inner conductor (130). The sleeve comprises (i) a tubular sleeve body (10) having an electrically conductive or semiconductive first axial electrode section (60), and (ii) a circuit board (30). The sleeve is radially expandable or shrinkable. It can be arranged radially outward of the inner conductor, such hat the first axial electrode section is radially separated from the inner conductor by at least an electrically insulating spacer layer (140). The circuit board is at least partially arranged radially outward of the sleeve body and comprises an electrical contact (100) which is electrically connected with the first axial electrode section.

Abstract translation: 一种用于具有内部导体（130）的高压或中压电力电缆（120）的套筒（1）。 套筒包括（i）具有导电或半导体的第一轴向电极部分（60）的管状套管主体（10）和（ii）电路板（30）。 套管是径向可膨胀或可收缩的。 第一轴向电极部分可以沿内部导体的径向外侧布置，至少一个电绝缘的间隔层（140），第一轴向电极部分与内部导体径向分开。 电路板至少部分地布置在套筒本体的径向外侧，并且包括与第一轴向电极部分电连接的电接触件（100）。