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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:US20180292435A1
公开(公告)日:2018-10-11
申请号:US15573889
申请日:2016-05-16
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor: Carl J. Wentzel , Christopher D. Sebesta
IPC: G01R19/00
Abstract: A voltage sensor comprises a conductor (102) having a first end (101) and a second end (103), the first end including a first connection interface (150) and the second end having no connection, and a sensor section (125) including at least one sensor disposed over the conductor, the sensor sensing the sensor sensing at least a voltage or a sample of the voltage of the conductor. The voltage sensor is coupleable to a power line or cable, such as an overhead power line or cable, or a cable accessory, and can also be used in underground applications.
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公开(公告)号:US10458860B2
公开(公告)日:2019-10-29
申请号:US15522337
申请日:2014-10-30
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor: Zhiguo Wen , Jaewon Kim , Justin M. Johnson , Xeutao Yu , David V. Mahoney , Michael D. Benson , Christopher D. Sebesta , Myungchan Kang
Abstract: Provided is a system for directly sensing, measuring, or monitoring the temperature of an electrical conductor (31) of a power cable (10). A temperature sensitive capacitor (21C) is disposed in direct thermal contact with the electrical conductor (31). The temperature sensitive capacitor (21C) includes a dielectric material that has a dielectric constant variable with the temperature of the electrical conductor (31). The temperature of the electrical conductor (31) can be sensed, measured, or monitored by measuring the capacitance of the temperature sensitive capacitor (21C).
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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:US10761117B2
公开(公告)日:2020-09-01
申请号:US15573889
申请日:2016-05-16
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor: Carl J. Wentzel , Christopher D. Sebesta
Abstract: A voltage sensor comprises a conductor (102) having a first end (101) and a second end (103), the first end including a first connection interface (150) and the second end having no connection, and a sensor section (125) including at least one sensor disposed over the conductor, the sensor sensing the sensor sensing at least a voltage or a sample of the voltage of the conductor. The voltage sensor is coupleable to a power line or cable, such as an overhead power line or cable, or a cable accessory, and can also be used in underground applications.
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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:US11067455B2
公开(公告)日:2021-07-20
申请号:US16064745
申请日:2015-12-21
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor: Sihua Yuan , Justin M. Johnson , Ryan D. Erickson , Christopher D. Sebesta , Zheng Huang , Jia Hu , Tongyong Li , Gaofei Guo , Tao Yang , Qihong Nie
Abstract: A temperature-sensing apparatus for sensing the temperature of an electrical conductor (31), comprising a sensor frame (210) including a frame body (2101) and a channel (2102) adapted to accommodate the electrical conductor (31). At least a portion of a temperature sensor is received in a chamber (2103) of the sensor frame (210). At least a portion of a thermal contact member is disposed between the electrical conductor (31) and the temperature sensor and configured to enhance thermal-contact therebetween. At least a portion of the thermal contact member is radially pressable against the electrical conductor (31).
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公开(公告)号:US20190003901A1
公开(公告)日:2019-01-03
申请号:US16064745
申请日:2015-12-21
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor: Sihua Yuan , Justin M. Johnson , Ryan D. Erickson , Christopher D. Sebesta , Zheng Huang , Jia Hu , Tongyong Li , Gaofei Guo , Tao Yang , Qihong Nie
Abstract: A temperature-sensing apparatus for sensing the temperature of an electrical conductor (31), comprising a sensor frame (210) including a frame body (2101) and a channel (2102) adapted to accommodate the electrical conductor (31). At least a portion of a temperature sensor is received in a chamber (2103) of the sensor frame (210). At least a portion of a thermal contact member is disposed between the electrical conductor (31) and the temperature sensor and configured to enhance thermal-contact therebetween. At least a portion of the thermal contact member is radially pressable against the electrical conductor (31).
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