MULTICHANNEL ELECTRICAL POWER GRID MONITORING SYSTEM FOR DETECTING AND ANALYZING SENSOR INSTALLATION AND CONFIGURATION ERRORS

    公开(公告)号:US20220260616A1

    公开(公告)日:2022-08-18

    申请号:US17597881

    申请日:2020-07-30

    Abstract: Techniques, methods, systems and articles are described for monitoring electrical equipment of a power grid, identifying installation and/or configuration errors of such electrical equipment, and automatically correcting the errors. In one example, a system includes at least one processor and a plurality of sensors coupled to a multi-phase power line comprising a plurality of electrical cables that are each associated with a respective phase. The plurality of sensors are configured to generate sensor data that is indicative of one or more conditions of the electrical cables. The at least one processor is configured to receive the sensor data and determine, based at least in part on the sensor data, whether a sensor of the plurality of sensors is installed correctly. The at least one processor is also configured to perform an action in response to determining that the sensor is not installed correctly.

    ELECTRICAL POWER CABLE PREPARATION SYSTEM

    公开(公告)号:US20220085583A1

    公开(公告)日:2022-03-17

    申请号:US17309773

    申请日:2019-12-20

    Abstract: Electrical power cable preparation techniques to connect to cable accessories for use in a power grid are described. In an example, a system comprises a cross-section sensing module. The cross-section sensing module comprises a camera configured to capture at least one image of an end-face of an electrical cable, a housing configured to position the end-face of the electrical cable substantially perpendicular to an optical axis of the camera and at an imaging distance from the camera, and at least one optical marker configured to indicate a diameter of the electrical cable. The system further comprises an electrical cable preparation device configured to cut at least one layer of an electrical cable, and a computing device configured to display a user interface, the user interface configured to accept user inputs controlling at least one setting of the cross-section sensing module and electrical cable preparation device.

    SYSTEMS AND METHODS FOR REGULATING A POWER DRAW FROM AN INDUCTION POWER HARVESTER (IPH)

    公开(公告)号:US20220077715A1

    公开(公告)日:2022-03-10

    申请号:US17419543

    申请日:2019-11-10

    Inventor: Eyal DORON

    Abstract: A method for regulating input impedance of a switching regulator, the method comprising: obtaining, at an impedance controller: (a) a measured voltage value that is indicative of an input current of the switching regulator and (b) an input voltage of the switching regulator, wherein a ratio of the input voltage to the input current defines an actual input impedance of the switching regulator; generating a control signal by the impedance controller, in accordance with a difference between the actual input impedance of the switching regulator and a desired input impedance of the switching regulator, wherein the desired input impedance is a predefined impedance; and controlling a feedback node feeding the switching regulator, in accordance with the control signal, to realize an output voltage of the switching regulator for achieving the desired input impedance, wherein the feedback node is external to the switching regulator, thereby regulating the input impedance of the switching regulator externally to the switching regulator.

    MONITORING SYSTEM FOR EVALUATING A CONDITION OF AN ELECTRICAL GRID

    公开(公告)号:US20230324440A1

    公开(公告)日:2023-10-12

    申请号:US17757428

    申请日:2020-12-31

    CPC classification number: G01R19/2513 G01R31/085 G01R15/16

    Abstract: In general, a monitoring system includes one or more nodes that are capacitively coupled to a cable of a multiphase electric power line. In some examples, a node includes a coupling layer disposed over a jacket layer of the cable and capacitively coupled to a shield layer of the cable. In some examples, a node may include a first coupling layer capacitively coupled to a first cable, and a second coupling layer capacitively coupled to a second cable, such that the node is differentially coupled to the cable pair to generate a differential data signal and to perform at least one of: sensing a native signal within the cable pair; injecting an intentional signal into the cable pair; receiving an intentional signal from within the cable pair; or providing a channel characterization.

    ELECTRICAL POWER CABLE PREPARATION DEVICE

    公开(公告)号:US20220060002A1

    公开(公告)日:2022-02-24

    申请号:US17309755

    申请日:2019-12-20

    Abstract: Techniques, systems and articles are described for preparing electrical cables for connections to a power grid. In one example, a system includes a rotatable tool head having a plurality of rollers, a cutting tool, a signal reflection target coupled to the at least one cutting tool, a transceiver configured to transmit a signal toward the reflection target and detect a reflected signal from the reflection target; and at least one computing device configured to cause the transceiver to transmit the signal toward the reflection target and determine, based on the reflected signal, a current relative position of the cutting tool.

    Electrical power cable preparation system

    公开(公告)号:US11705700B2

    公开(公告)日:2023-07-18

    申请号:US17309773

    申请日:2019-12-20

    CPC classification number: H02G1/1265 H02G1/127 H02G1/1248 H04N7/188 H04N23/51

    Abstract: Electrical power cable preparation techniques to connect to cable accessories for use in a power grid are described. In an example, a system comprises a cross-section sensing module. The cross-section sensing module comprises a camera configured to capture at least one image of an end-face of an electrical cable, a housing configured to position the end-face of the electrical cable substantially perpendicular to an optical axis of the camera and at an imaging distance from the camera, and at least one optical marker configured to indicate a diameter of the electrical cable. The system further comprises an electrical cable preparation device configured to cut at least one layer of an electrical cable, and a computing device configured to display a user interface, the user interface configured to accept user inputs controlling at least one setting of the cross-section sensing module and electrical cable preparation device.

    SUPPORT STRUCTURE FOR CABLE AND CABLE ACCESSORY CONDITION MONITORING DEVICES

    公开(公告)号:US20210344184A1

    公开(公告)日:2021-11-04

    申请号:US17274032

    申请日:2019-09-05

    Abstract: Devices are described that support, house, and protect an electrical cable monitoring system that is electrically coupled to an electrical cable. An example support structure includes an elongate body including an interior surface extending along and concentric to an axis of the electrical cable. The body is configured to engage a cable accessory disposed on the electrical cable. The support structure includes a first electrode attached to the interior surface and configured to operatively couple to the cable accessory. The support structure includes a second electrode attached to the body and configured to operatively couple to the shielding layer. The support structure includes a monitoring device attached to the interior surface and operatively coupled to the first and second electrodes. The monitoring device is configured to monitor one or more conditions of the electrical cable or the cable accessory.

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