Erkennung von Leckströmen in einem Elektrischen Versorgungssystem

Details

Veröffentlichungs-Nr.

EP4027159

Aktenzeichen

EP22150027

Anmeldetag

3. Januar 2022

Veröffentlichung

4. Dezember 2024

Erteilung

4. Dezember 2024

Rechtsraum

EP

IPC

G01R31/52

Abstract

Apparatus and associated methods relate to detecting leakage current in a powered electrical system. Leakage current is detected by comparing a high-frequency response signal with a high-frequency reference signal. A high-frequency excitation signal is coupled, via an inducer (32), into the powered electrical system at a first location. The high-frequency response signal is sensed, via a signal sensor (34), at a second location of the powered electrical system. Because the electrical dynamics of the powered electrical system can change in response to system degradation that results in leakage current, changes in the high-frequency response signal can be indicative of leakage. Thus, the high-frequency response signal is compared, by a controller (36), with a high-frequency reference signal. The high-frequency reference signal can be a high-frequency response signal obtained at a reference time, at which the powered electrical system is operating without leakage.

Anmelder

Firma

Rosemount Aerospace Inc.

Land

🇺🇸 USA

Fachgebiete