The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 21, 2023
Filed:
Nov. 16, 2020
E.on SE, Essen, DE;
Nicholas Ord, Munich, DE;
Florian Fecher, Munich, DE;
Maria Garbuzova-Schlifter, Munich, DE;
Laura Antonia Färber, Munich, DE;
Eugenio Scionti, Munich, DE;
E.ON SE, Essen, DE;
Abstract
The invention relates to a method, a device () and an arrangement () for monitoring alternating current electric apparatuses (), like e.g. power distribution transformers. The inventive method relies on an inductor antenna (') suitable to detect the electromagnetic field at the frequency of the alternating current the apparatus () to be monitored is supplied with arranged in the vicinity of but distant to the apparatus () to be monitored and comprises the steps: —Detecting the electromagnetic field radiated by the electric apparatus () to be monitored; —Digitizing the detected electromagnetic field to obtain EMF-data; —Running a Fast-Fourier-Transformation on the digitized EMF-data to obtain FFT-transformed data; and —Monitoring the magnitudes of the FFT-transformed data at least at the frequency of the alternating current the apparatus () to be monitored is supplied with and its third harmonic for anomalies. The inventive device () and arrangement () are configured to perform the inventive method.