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. 14, 2023
Filed:
Sep. 08, 2021
Applicant:
Kone Corporation, Helsinki, FI;
Inventors:
Teppo Vuorio, Helsinki, FI;
Juhamatti Nikander, Helsinki, FI;
Assignee:
KONE CORPORATION, Helsinki, FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 11/63 (2006.01); G01R 19/165 (2006.01); B66B 5/00 (2006.01); B66B 25/00 (2006.01); G01R 19/04 (2006.01);
U.S. Cl.
CPC ...
G01R 19/16547 (2013.01); B66B 5/0018 (2013.01); B66B 25/006 (2013.01); G01R 19/04 (2013.01);
Abstract
A method for detecting a loss or an undervoltage condition of phase of an electric converter unit, wherein the method comprises: determining an extremum value, such as a maximum and/or a minimum value, of a phase voltage of the electric converter unit for at least one fundamental period of the phase voltage, and comparing the extremum value to a first threshold value, and if, based on the comparison, a first threshold criterion related to the first threshold value is satisfied, then determining the loss or the undervoltage condition of phase.