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:
May. 18, 2021
Filed:
Feb. 19, 2018
Applicant:
Omron Corporation, Kyoto, JP;
Inventors:
Takuya Fukudome, Aso, JP;
Tsuyoshi Takeuchi, Kusatsu, JP;
Koji Yokota, Shiga, JP;
Tomohiro Yamada, Shiga, JP;
Assignee:
OMRON Corporation, Kyoto, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 31/52 (2020.01);
U.S. Cl.
CPC ...
G01R 31/52 (2020.01);
Abstract
An insertion determination unit () for precisely calculating a ground insulation resistance component of a leakage current regardless of the presence or absence of an inverter determines whether an inverter () is inserted between a commercial power system () and a three-phase motor (). A resistance component leakage current calculation unit () calculates a ground insulation resistance component of a leakage current on the basis of a calculation procedure corresponding to the result of the above determination.