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:
Jan. 31, 2023
Filed:
Sep. 15, 2020
Kone Corporation, Helsinki, FI;
Teppo Vuorio, Helsinki, FI;
Juhamatti Nikander, Helsinki, FI;
Kone Corporation, Helsinki, FI;
Abstract
A method for testing a capacity of a drive rescue battery includes opening a first switching device and second switching device to disconnect a LCL filter from AC mains and form a test load for testing the capacity of the drive rescue battery while disconnecting one of the LCL filter capacitors associated with a third phase from the test load, the test load including a series connection from one of the downstream LCL filter inductors and the LCL filter capacitors associated with the first phase to one of the LCL filter capacitors and the downstream LCL filter inductors associated with the second phase; and determining at least one of a voltage or a current of the drive rescue battery resulting from the test load.