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：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.

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：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：US20230341453A1

公开(公告)日：2023-10-26

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: G01R31/12 ,  G01R31/327 ,  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：US11726131B2

公开(公告)日：2023-08-15

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

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

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：US11719737B2

公开(公告)日：2023-08-08

申请号：US17314140

申请日：2021-05-07

Applicant: ABB Schweiz AG

Inventor： Jörg Gebhardt ,  Holger Kaul ,  Kai Hencken

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

CPC classification number: G01R31/1209 ,  G01R31/3271 ,  H04R1/04 ,  H04R1/2884 ,  H04R19/01 ,  H04R2201/003

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.