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公开(公告)号：US20210199697A1
公开(公告)日：2021-07-01
申请号：US17250090
申请日：2019-06-06
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Michael H. Stalder , Hermanus Franciscus Maria van Meijl , Joerg Hahn , Lars Schrix
Abstract: Impedance assembly (120) for use in a voltage divider for sensing an AC elevated voltage of at least 1 kV of a power-carrying conductor (10) distributing electrical energy in a national grid. The impedance assembly comprises a) a PCB (170); b) a high-voltage contact (80) for connection to the power-carrying conductor; c) a first plurality of impedance elements (70) on the PCB, connected to the high-voltage contact and in series with each other such as to be operable in a first voltage divider (20) for sensing the voltage of the power-carrying conductor; and d) a second plurality of impedance elements (71) on the PCB, connected to the high-voltage contact and in series with each other such as to be operable in a second voltage divider (21) for harvesting electrical energy from the power-carrying conductor.
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Patent Agency Ranking
公开(公告)号：US10338103B2
公开(公告)日：2019-07-02
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
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.
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公开(公告)号：US11486902B2
公开(公告)日：2022-11-01
申请号：US17250090
申请日：2019-06-06
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Michael H. Stalder , Hermanus Franciscus Maria van Meijl , Joerg Hahn , Lars Schrix
Abstract: Impedance assembly (120) for use in a voltage divider for sensing an AC elevated voltage of at least 1 kV of a power-carrying conductor (10) distributing electrical energy in a national grid. The impedance assembly comprises a) a PCB (170); b) a high-voltage contact (80) for connection to the power-carrying conductor; c) a first plurality of impedance elements (70) on the PCB, connected to the high-voltage contact and in series with each other such as to be operable in a first voltage divider (20) for sensing the voltage of the power-carrying conductor; and d) a second plurality of impedance elements (71) on the PCB, connected to the high-voltage contact and in series with each other such as to be operable in a second voltage divider (21) for harvesting electrical energy from the power-carrying conductor.
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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
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
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公开(公告)号：US11327096B2
公开(公告)日：2022-05-10
申请号：US16771950
申请日：2018-12-17
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Abstract: A voltage divider assembly for a voltage-dividing sensor for sensing a voltage of a MV/HV power conductor in a power network includes a plurality of discrete impedance elements electrically connected in series with each other such as to be operable as a high-voltage cable side of the voltage-dividing sensor and a cable connector for mechanical engagement with a cable plug at an end of a tap cable conducting the voltage of the power conductor to the voltage divider assembly. The cable connector is electrically connected with one discrete impedance element of the plurality of discrete impedance elements.
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公开(公告)号：US20210072288A1
公开(公告)日：2021-03-11
申请号：US16771950
申请日：2018-12-17
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Abstract: Voltage divider assembly (1) for a voltage-dividing sensor for sensing a voltage of a MV/HV power conductor in a power network, comprising a) a plurality of discrete impedance elements (100), electrically connected in series with each other such as to be operable as a high-voltage cable side of the voltage-dividing sensor; b) a cable connector (150) for mechanical engagement with a cable plug (140) at an end of a tap cable (130) conducting the voltage of the power conductor to the voltage divider assembly. The cable connector (150) is electrically connected with one discrete impedance element (100a) of the plurality of discrete impedance elements (100, 100a).
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