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    CIRCUIT BREAKER STATE DETECTOR, AND LOW-VOLTAGE ELECTRICAL SYSTEM INCLUDING CIRCUIT BREAKER STATE DETECTOR
    3.
    发明申请
    CIRCUIT BREAKER STATE DETECTOR, AND LOW-VOLTAGE ELECTRICAL SYSTEM INCLUDING CIRCUIT BREAKER STATE DETECTOR 有权

    公开(公告)号：US20230019486A1

    公开(公告)日：2023-01-19

    申请号：US17866385

    申请日：2022-07-15

    Applicant: ABB Schweiz AG

    Inventor： Martin Zlatanski ,  Yannick Maret ,  Wojciech Piasecki ,  Matija Varga

    IPC: G01R31/327

    Abstract: A circuit breaker is connected between an input supply line and an output supply line of a low-voltage electrical system and comprises a test signal transceiver and evaluator. The test signal transceiver comprises a first transceiver section being capacitively or inductively coupled, at a first coupling point, with the input supply line, and a second transceiver section being inductively coupled, at a second coupling point, with the input or output supply line. One of the first and second transceiver section is a test signal transmitter configured to generate and inject an AC test signal into the input or output supply line, and the other one of the first and second transceiver section is a test signal receiver configured to receive the test signal from the input or output supply line. A test signal evaluator is configured to determine the state of the circuit breaker from the received test signal.

    Ground fault detection of UPS battery
    4.
    发明授权
    Ground fault detection of UPS battery 有权

    公开(公告)号：US11500033B2

    公开(公告)日：2022-11-15

    申请号：US16736353

    申请日：2020-01-07

    Applicant: ABB Schweiz AG

    Inventor： Daniel Aggeler ,  Esa-Kai Paatero ,  Ivan Furlan ,  Nicola Notari ,  Yannick Maret

    IPC: G01R31/52 ,  H02J9/06 ,  G01R31/385 ,  G01R31/389

    Abstract: The present invention provides a method for detecting a ground fault in a battery of a uninterrupted power supply, the battery includes at least one string with multiple battery cells, the method including the steps of defining multiple individual battery blocks of battery cells along the at least one string, performing an reference impedance measurement for the multiple individual battery blocks at a first point of time, performing a verification impedance measurement for the multiple individual battery blocks at a second point of time, evaluating a change of measured impedance between the reference impedance and the verification impedance for the multiple individual battery blocks of the at least one string, and identifying a ground fault based on a correlated change of measured impedance of the multiple individual battery blocks along the at least one string. The present invention also provides a battery management system for managing a battery of a uninterrupted power supply, which is adapted to perform the above method. The present invention further provides a UPS device and a UPS system, each of which including an above battery management system.

    Wireless sensing device
    5.
    发明授权
    Wireless sensing device 有权

    公开(公告)号：US11953525B2

    公开(公告)日：2024-04-09

    申请号：US17539908

    申请日：2021-12-01

    Applicant: ABB Schweiz AG

    Inventor： Felix Sutton ,  Yannick Maret ,  Kai Hencken

    IPC: G01R15/18 ,  G01D11/30 ,  G01R1/18 ,  G01R15/20 ,  H02J50/00

    CPC classification number: G01R15/20 ,  G01D11/30 ,  G01R1/18 ,  G01R15/183 ,  G01R15/207 ,  H02J50/001

    Abstract: A sensing device for monitoring an electrical component or apparatus is described. The sensing device is attachable to an electrical conductor and includes a sensor for measuring at least one physical property, a wireless communication unit for transmitting measurement data to a receiver, an energy harvesting unit configured to harvest energy from a current flowing through the electrical conductor and comprising an electromagnetic coil wound around a core, and a connection mechanism to make the core connectable to a strap comprising a material having a high magnetic permeability. The sensing device is configured to be operable when no strap is connected to the core and energy is harvested via an open magnetic circuit as well as when a strap is connected to the core and energy is harvested via a closed magnetic circuit.

    PARTIAL DISCHARGE MONITORING SYSTEM WITH A COMPATIBILITY-FUNCTION FOR A VOLTAGE INDICATION SYSTEM
    7.
    发明申请
    PARTIAL DISCHARGE MONITORING SYSTEM WITH A COMPATIBILITY-FUNCTION FOR A VOLTAGE INDICATION SYSTEM 审中-公开

    公开(公告)号：US20200003805A1

    公开(公告)日：2020-01-02

    申请号：US16458950

    申请日：2019-07-01

    Applicant: ABB Schweiz AG

    Inventor： Yannick Maret ,  Kai Hencken ,  Stefano Marano

    IPC: G01R1/36 ,  G01R31/12 ,  G01R19/145

    Abstract: The present application discloses a method and device suitable to perform the method for operating Voltage Indication system (VIS) and partial discharge module (PD) for medium-voltage or high voltage apparatuses, comprising: monitoring, with the partial discharge-module (PD), provided in low-voltage section, whether partial discharge occurs within a dielectric of the high-voltage or medium-voltage apparatus or system, the partial discharge-module or VIS being electrically connected to a coupler provided in the medium-voltage or high-voltage apparatus; indicating with the Voltage Indication System (VIS), provided in a low-voltage portion, the presence of operating voltages in high-voltage or medium-voltage apparatus or system, Voltage Indication System (VIS) being electrically connected with partial discharge-module (PD) and deactivating by deactivation module connected to Voltage Indication System and partial discharge-module (PD) an optical display in the Voltage Indication System (VIS) during partial discharge measurements.

    Arc fault detection device with wideband sensor
    8.
    发明授权
    Arc fault detection device with wideband sensor 有权

    公开(公告)号：US11686758B2

    公开(公告)日：2023-06-27

    申请号：US17484055

    申请日：2021-09-24

    Applicant: ABB Schweiz AG

    Inventor： Matija Varga ,  Yannick Maret ,  Agostino Butti ,  Antonio Currà ,  Vittorio Cozzi ,  Luca Ghezzi

    IPC: G01R31/08 ,  G01R31/12 ,  H02H1/00 ,  H02H3/16

    CPC classification number: G01R31/085 ,  G01R31/08 ,  G01R31/1272 ,  H02H1/0015 ,  H02H3/16

    Abstract: An arc fault detection device for detecting an arc fault in an electric line includes a first terminal and a second terminal for connecting the arc fault detection device to a conductor of the electric line. A sensor is adapted for generating a sensor signal from a current through the electric line; and a controller is adapted for detecting the arc fault from the sensor signal. The sensor includes an inductor connected to the first terminal and the second terminal and a capacitor connected in parallel with the inductor. The inductor and the capacitor form a resonant circuit with a resonance frequency, the resonance frequency determining an impedance behavior of the resonant circuit; wherein the inductor and the capacitor are chosen such that the impedance behavior of the resonant circuit corresponds to a desired impedance behavior over a relevant frequency range of the current through the electric line.

    Method for detecting an electrical discharge in an electrical apparatus and a system therefor
    10.
    发明授权
    Method for detecting an electrical discharge in an electrical apparatus and a system therefor 有权

    公开(公告)号：US11609259B2

    公开(公告)日：2023-03-21

    申请号：US17363724

    申请日：2021-06-30

    Applicant: ABB Schweiz AG

    Inventor： Kai Hencken ,  Yannick Maret ,  Jörg Gebhardt ,  Holger Kaul ,  Jörg Lehmann ,  Andrej Krivda

    IPC: G01R31/00 ,  G01R31/12

    Abstract: The present disclosure provides a method for detecting an electrical discharge in an electrical apparatus. The method includes sensing an electromagnetic wave using an electrical sensor and generating an electric signal for a predetermined time period, sensing an acoustic wave using an acoustic sensor and generating an acoustic signal for the predetermined time period. The acoustic sensor is associated with at least one compartment of the electrical apparatus. Electrical data is generated based on a quasi-periodic characteristic of electric peak sequences of the electrical signal. Acoustic data is generated based on a quasi-periodic characteristic of acoustic peak sequences of the acoustic signal, wherein the electrical data is combined with the acoustic data to provide an operation status of the at least one compartment.

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