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：US20220091172A1

公开(公告)日：2022-03-24

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

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.

公开(公告)号：US20220037865A1

公开(公告)日：2022-02-03

申请号：US17274953

申请日：2019-08-29

Applicant: ABB Schweiz AG

Inventor： Pierre Elser ,  Peter Schuster ,  Yannick Maret ,  Rudi Velthuis

IPC: H02G3/04

Abstract: A cable conduit comprises at least one cable, a tube, which accommodates the cable in an interior space and a sensor for sensing an environmental condition in the interior space of the tube.

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：US20200003822A1

公开(公告)日：2020-01-02

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 is disclosed with: 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：US20190252135A1

公开(公告)日：2019-08-15

申请号：US16394692

申请日：2019-04-25

Applicant: ABB Schweiz AG

Inventor： David Roby ,  Maciej Orman ,  ShunChong Li ,  Stevan Marinkovic ,  Yannick Maret

IPC: H01H11/00 ,  G01P13/04 ,  G01S17/66 ,  H04L29/08 ,  G08C23/04

CPC classification number: H01H11/0062 ,  G01P13/04 ,  G01S17/66 ,  G08C23/04 ,  H01H2001/0021 ,  H01H2071/044 ,  H04L67/12

Abstract: System and method for monitoring a travel curve of moving part of circuit breaker comprising: device for optically monitoring travel path and comprising: light source; light detection device; optical element having plurality of zones with different optical properties which are alternately arranged, the optical element being provided on moving part of circuit breaker, light being intensity-modulated by the optical element and being received by light detection device during circuit breaker operation. The system further comprises an accelerometer mounted to circuit breaker, control unit for receiving signals from light detection device and from accelerometer, the control unit being configured to determine the travel curve based on the detected modulated light and on the detected vibration signal, the vibration signal being employed to identify a change of direction of movement of the moving part.