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:
Mar. 13, 2018
Filed:
Mar. 21, 2016
Applicant:
Liebert Corporation, Columbus, OH (US);
Inventors:
James K. Martin, Galena, OH (US);
Terry D. Bush, Westerville, OH (US);
Charles F. Blair, Powell, OH (US);
Assignee:
Liebert Corporation, Columbus, OH (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 19/06 (2006.01); G01R 19/02 (2006.01); G01R 31/02 (2006.01);
U.S. Cl.
CPC ...
G01R 19/06 (2013.01); G01R 19/02 (2013.01); G01R 31/025 (2013.01);
Abstract
A real current meter reads current from a current probe coupled around power lines of a transformer-based UPS system coupled to a transformer having a high resistance ground with a HRG resistance and determines a real current component of the current read from the current probe.