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公开(公告)号：US20190107563A1
公开(公告)日：2019-04-11
申请号：US15971820
申请日：2018-05-04
申请人： ABB Schweiz AG
发明人： Larry N. Siebens
IPC分类号： G01R15/16 , H01R13/53 , H02G15/16 , H02G15/103
摘要： A medium or high voltage electrical device includes a housing, a central conductor provided within the housing, and a sacrificial cap configured for mounting on the housing. The sacrificial cap includes an outer housing, an insulated body, and a sacrificial conductor provided within the insulated body, wherein the sacrificial conductor electrically communicates with the central conductor within the housing when the sacrificial cap is mounted on the housing. A voltage test point terminal is provided within the insulated body and accessible via the outer housing of the sacrificial cap to capacitively couple with the sacrificial conductor. The sacrificial cap includes a portion configured to be physically severed to confirm that the electrical connector is de-energized.
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42.发明申请公开(公告)号：US20190094287A1
公开(公告)日：2019-03-28
申请号：US16139948
申请日：2018-09-24
CPC分类号： G01R31/086 , G01R1/203 , G01R15/06 , G01R15/16 , G01R31/024 , G01R31/083 , G01R31/085 , H01F38/24 , H01F38/32
摘要： The present disclosure pertains to systems and methods for detecting traveling waves in electric power delivery systems. In one embodiment, a system comprises a capacitance-coupled voltage transformer (CCVT) in an electric power delivery system, the CCVT comprising a first capacitor disposed between an electrical bus and a first electrical node, and a second capacitor electrically disposed between the first electrical node and a ground connection. A resistive divider in electrical communication with a first node may generate a resistive divider electrical signal corresponding to a voltage value. An intelligent electronic device (IED) in electrical communication with the resistive divider monitors a resistive divider voltage signal. The IED detects a traveling wave based on the resistive divider voltage signal and a measurement of a primary current through an electrical bus in electrical communication with the CCVT; and analyzes the traveling wave to detect a fault on the electric power delivery system.
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公开(公告)号：US20190086446A1
公开(公告)日：2019-03-21
申请号：US16159552
申请日：2018-10-12
摘要： An electromechanical component and an electromechanical component arrangement for proving the existence of a potential difference which consists of a first electrode, a second electrode and a proving structure. The proving structure is configured to be deflected in the event of there being a potential difference. In addition, an electromechanical component is configured to generate a useful effect.A method implements operation of an electromechanical component for proving the existence of a potential difference, other methods implement operation for performing a functional test on the electromechanical component.
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公开(公告)号：US10236765B2
公开(公告)日：2019-03-19
申请号：US15420915
申请日：2017-01-31
发明人： Clemens Kain
摘要： A switched-capacitor circuit is described herein. In accordance with one exemplary embodiment the switched-capacitor circuit includes a first input node and a second input node and an input switch unit. The input switch is connected to the first input node and the second input node and has a first output node and a second output node. A first capacitor is coupled to the first output node of the input switch unit, and a second capacitor is coupled to the second output node of the input switch unit. The input switch unit includes a plurality of switches configured to con-nect and disconnect one of the first and second input nodes and one of the first capacitor and the second capacitor. The input switch unit further includes a first charge pump coupled to the first input node and a second charge pump coupled to the second input node. The first charge pump is configured to generate, based on a clock signal, switching signals for a switch of the plurality of switches, and the second charge pump is configured to generate, based on the clock signal, switching signals for a further switch of the plurality of switches.
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公开(公告)号：US10228410B2
公开(公告)日：2019-03-12
申请号：US15147249
申请日：2016-05-05
发明人： Hans Schellekens , Christophe Preve
IPC分类号： G01R15/16 , G01R31/12 , H01H33/26 , H01H33/66 , G08B21/00 , H01H33/668 , G01R31/327 , H01H9/54
摘要： A device for monitoring partial discharges in an AC electrical network, the monitoring device being mounted in a switching apparatus provided with a vacuum bottle connected to one phase of the AC network. The monitoring device includes a partial discharge detector positioned facing the vacuum bottle and an electronic processing unit receiving a first signal representative of the partial discharges detected by the capacitive sensor and receiving a second signal representative of the voltage of the electrical network. The processing unit includes discriminating means which are capable, according to the first signal and the second signal, of determining whether the partial discharges originate from a loss of vacuum in the vacuum bottle or originate from another cause external to the vacuum bottle.
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46.发明申请公开(公告)号：US20190049491A1
公开(公告)日：2019-02-14
申请号：US16077300
申请日：2017-02-10
发明人： Michel CLEMENCE , Pascal HOUBRE , Erick CONTINI
摘要： The invention relates to a device for measuring an electrical quantity of one phase of an AC electric current in an overhead electrical network, comprising: a sensor designed to be attached to an electric line of the overhead electrical network, said sensor including: an electrically conductive plate; an electrical conductor, designed to electrically connect the plate to the electric line, in order to circulate a first electric current from the electric line through the electrical conductor; a processing unit, designed to determine the electrical quantity from a value of the first electric current and a value of a capacitance between the plate and the ground. Said device also comprises a generator, electrically connected to the electrical conductor and designed to inject a second electric current through the electrical conductor, said second electric current having a frequency other than the frequency of the first electric current, the processing unit also being designed to calculate the value of the capacitance between the plate and the ground as a function of a value of the second electric current.
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公开(公告)号：US20190041449A1
公开(公告)日：2019-02-07
申请号：US16152715
申请日：2018-10-05
申请人： The Boeing Company
发明人： Dejan Nikic , Arthur C. Day
CPC分类号： G01R31/1218 , G01N27/60 , G01N27/61 , G01R15/165 , G01R29/24 , G01R31/16
摘要： Propagating brush discharge testing systems include an initiation electrode, a high-voltage switch, a sensor, and a controller. The initiation electrode has an exposed tip positioned adjacent to a surface of a test article. The high-voltage switch is configured to selectively isolate the initiation electrode from ground potential. The sensor is positioned and configured to detect a propagating brush discharge between the initiation electrode and the test article. The controller is programmed to operate the high-voltage switch to ground the initiation electrode.
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公开(公告)号：US20190011523A1
公开(公告)日：2019-01-10
申请号：US16030402
申请日：2018-07-09
摘要： A system measures wireless power transfer between a transmitter and a receiver. The system includes a sensor circuit including a sensor. The sensor is configured and positioned to generate sensor data indicative of a field. The field is generated in connection with the wireless power transfer. The system further includes a processor coupled to the sensor circuit and configured to determine a power measurement based on the sensor data. The processor is further configured to determine misalignment of the transmitter or the receiver. The processor is also configured to correct an estimate of the power measurement based on the misalignment.
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49.发明授权公开(公告)号：US10175268B2
公开(公告)日：2019-01-08
申请号：US15098919
申请日：2016-04-14
发明人： Raffi Sevlian , Ram Rajagopal
摘要： A method of estimating a line voltage is provided that includes configuring a capacitive probe to a power line, injecting a perturbation voltage onto the capacitive probe, where the perturbation voltage has a different frequency than a frequency of the line voltage, measuring, using a capacitive sensor, a retrieved perturbation voltage, where the retrieved perturbation voltage is dependent on a capacitance between the capacitive probe and a ground capacitance, using an appropriately programmed computer to track real time changes in the capacitance of the capacitive probe, and estimating a line voltage.
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公开(公告)号：US10145864B2
公开(公告)日：2018-12-04
申请号：US15309512
申请日：2015-05-18
发明人： Carl J. Wentzel
摘要： A sensored electrical jumper comprises a conductor having a first end and a second end, the first end including a first connection interface and the second end including a second connection interface, a sensor section including at least one sensor disposed over the conductor between the first and second ends, the sensor section sensing at least one of current and voltage of the conductor, and a sensor output conduit extending from the sensor and oriented substantially perpendicular to the conductor axis to protect at least one sensor output wire from leakage current or other potential electrical damage.
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