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：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.