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.

公开(公告)号：US11300603B2

公开(公告)日：2022-04-12

申请号：US17178521

申请日：2021-02-18

Applicant: ABB Schweiz AG

Inventor： Jiayang Ruan ,  Niya Chen ,  Rongrong Yu ,  Kai Hencken ,  Joerg Lehmann

IPC: G01R31/12

Abstract: A method and system for condition monitoring electrical equipment includes detecting partial discharge impulses generated in the electrical equipment for at least one power cycle; obtaining first data representing the detected partial discharge impulses for the at least one power cycle; obtaining second data by phase-resolving the first data; obtaining third data by regularizing the second data; analyzing the third data into a first component and at least one second component; obtaining phase information of the first component; shifting the first component and the at least one second component in consideration of the obtained phase information; and generating a signal indicating a health state of the electrical equipment by comparing the shifted first and second components of the third data with their counterparts associated with an unhealthy electrical equipment.

公开(公告)号：US11287464B2

公开(公告)日：2022-03-29

申请号：US16458958

申请日：2019-07-01

Applicant: ABB Schweiz AG

Inventor： Yannick Maret ,  Kai Hencken ,  Stefano Marano

IPC: G01R31/12

Abstract: A method and device for determining partial discharge in an electrical insulation system of a medium- or high voltage apparatus, the method and apparatus including: detecting, with a sensing unit, an electrical signal that comprises partial discharge pulses due to dielectric breakdowns in the electrical insulation system of the medium- or high voltage apparatus; generating an in-phase and a quadrature-signal from the electrical signal comprising the partial discharge pulses in an I/Q-mixer unit by mixing the electrical signal including the partial discharge pulses with two local oscillator signals having the same frequency and a phase difference of 90°; filtering each of the in-phase and the quadrature signals with a low-pass filter; processing the filtered in-phase and the quadrature signals in a processing unit with a low-frequency Analog-Digital converter to obtain digital signals representing an in-phase and a quadrature value.

公开(公告)号：US20220018887A1

公开(公告)日：2022-01-20

申请号：US17380313

申请日：2021-07-20

Applicant: ABB Schweiz AG

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

IPC: G01R31/12 ,  G01S11/16 ,  G01R31/327

Abstract: The present disclosure provides a detection system that includes a first sensing device configured for sensing an acoustic wave and an electromagnetic wave and generating a first combined signal and a signal processing device configured to determine the occurrence and properties of an electrical discharge.

公开(公告)号：US20210405106A1

公开(公告)日：2021-12-30

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: G01R31/12

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.

公开(公告)号：US20250020736A1

公开(公告)日：2025-01-16

申请号：US18768417

申请日：2024-07-10

Applicant: ABB Schweiz AG

Inventor： Lorenzo Privitera ,  Kai Hencken ,  Gerd Schlottig ,  Elsi-Mari Borrelli ,  Wojciech Wysocki ,  Bartlomiej Adamczyk

IPC: G01R31/64 ,  H01G4/18

Abstract: A method for estimating a consumed lifetime of the energy storage device includes measuring a time-series of an environmental relative humidity and a related temperature of the energy storage device; and estimating, based on the time-series and on a moisture diffusion model of the energy storage device, the consumed lifetime of the energy storage device.

公开(公告)号：US12078669B2

公开(公告)日：2024-09-03

申请号：US18345009

申请日：2023-06-30

Applicant: ABB Schweiz AG

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

IPC: G01R31/327 ,  G01R31/12 ,  G01S11/16

CPC classification number: G01R31/1209 ,  G01R31/3271 ,  G01S11/16

Abstract: A detection system for detecting an electrical discharge in an electrical apparatus includes a first sensing device that senses an acoustic wave and an electromagnetic wave and generates a first combined signal. A signal processing device processes the first combined signal and determines the occurrence and properties of an electrical discharge.

公开(公告)号：US11614467B2

公开(公告)日：2023-03-28

申请号：US16458946

申请日：2019-07-01

Applicant: ABB Schweiz AG

Inventor： Yannick Maret ,  Kai Hencken

IPC: G01R1/36 ,  G01R21/133 ,  G01R22/06 ,  H02J13/00

Abstract: A fail-safe device is disclosed for ensuring compatibility and reliable operation of a Voltage Indicator System (VIS) for a medium- or high-voltage apparatus in presence of a monitoring system with: a first and second fail-safe device terminal; the first terminal being connectable to an output terminal of a coupler, the coupler being provided in a medium- or high voltage portion of the apparatus, and the second terminal being connectable to an input terminal of the VIS, which is provided in the low-voltage portion; a third and fourth fail-safe device terminal, wherein the third and fourth terminals being electrically connectable to first and second input/output terminals of the monitoring system; and an electrical circuit connecting the first and second fail-safe device terminal and being adapted to compensate for electrical failure modes of the monitoring system such, that the VIS is operable in case the electrical failure modes occur.

公开(公告)号：US11239033B2

公开(公告)日：2022-02-01

申请号：US16620720

申请日：2017-06-08

Applicant: ABB Schweiz AG

Inventor： Stevan Marinkovic ,  Kai Hencken ,  Andrea Bianco ,  Yannick Maret

IPC: H01H1/00 ,  H01H11/00 ,  H01H3/30 ,  H01H9/56

Abstract: A monitoring device for switching systems including a contact assembly having at least a movable contact and a kinematic chain for actuating said movable contact and opening/closing the contact assembly. The monitoring device includes: an accelerometer adapted to be positioned on a moving part of the switching system and capable of determining acceleration data of the moving part; a control unit including: a first processing unit adapted to receive acceleration data measured by the accelerometer and calculate timing instants of predetermined events and motion parameters related to the switching system; a second processing unit adapted to receive the timing instants of predetermined events and the motion parameters and to use at least one timing instant and at least one motion parameter to calculate electro/mechanical parameters of the switching system.

公开(公告)号：US20210349140A1

公开(公告)日：2021-11-11

申请号：US17314140

申请日：2021-05-07

Applicant: ABB Schweiz AG

Inventor： Jörg Gebhardt ,  Holger Kaul ,  Kai Hencken

IPC: G01R31/12 ,  G01R31/327 ,  H04R1/28 ,  H04R19/01 ,  H04R1/04

Abstract: A sensing arrangement for detection of electrical discharges in an electrical apparatus is described. The sensing arrangement includes an acoustic sensor and a signal enhancing structure with a funnel region. The acoustic sensor is positioned outside the funnel region on an apex side of the funnel region. An electrical switchgear is described. The electrical switchgear includes a sensing arrangement for detection of electrical discharges in an electrical apparatus. The sensing arrangement includes an acoustic sensor and a signal enhancing structure with a funnel region.