Patent · US Active

Method for detecting an electrical discharge in an electrical apparatus and a system therefor

US11609259B2 · kind B2 · utility

0Cited by

1References

12Claims

0Family size

Assignee

ABB Schweiz AG · CH

Inventors

Kai Hencken · Bad Kötzting, DE
Yannick Maret · Dättwil, CH
Jörg Gebhardt · Mainz, DE
Holger Kaul · Mannheim, DE
Jörg Lehmann · Basel, CH
Andrej Krivda · Wettingen, CH

Key dates

Filing date	Jun 30, 2021
Grant date	Mar 21, 2023
Priority date	—
Expiry date	Jun 30, 2041

Classification

Technology area (CPC G)Physics
CPC primaryG01R31/1272
WIPO fieldMeasurement
WIPO sectorInstruments

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.