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:
Apr. 01, 2025
Filed:
Nov. 25, 2021
Applicant:
Fronius International Gmbh, Pettenbach, AT;
Inventors:
Roland Jungreithmair, Wels-Thalheim, AT;
Stefan Wieser, Wels-Thalheim, AT;
Martin Wolf, Wels-Thalheim, AT;
Bernhard Doppelbauer, Wels-Thalheim, AT;
Assignee:
Fronius International GmbH, Pettenbach, AT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 31/14 (2006.01); G01R 31/12 (2020.01);
U.S. Cl.
CPC ...
G01R 31/1227 (2013.01);
Abstract
To determine an AC insulation resistance between the AC connections of an inverter and a ground potential, the AC connections are connected to an AC energy sink in an emergency standby operation in order to transmit energy from a DC energy source to an AC energy sink and an insulation test is performed in emergency standby operation. An AC fault current flowing between an AC connection and the ground potential is determined, and the AC insulation resistance is calculated from the AC fault current.