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:
Aug. 13, 2013
Filed:
Jun. 16, 2008
Applicants:
Laurence V. Feight, Island Lake, IL (US);
Ryan W. Swartzendruber, Prospective Heights, IL (US);
Kurt J. Fenske, Gleason, WI (US);
Inventors:
Laurence V. Feight, Island Lake, IL (US);
Ryan W. Swartzendruber, Prospective Heights, IL (US);
Kurt J. Fenske, Gleason, WI (US);
Assignee:
Schweitzer Engineering Laboratories Inc, Pullman, WA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 19/00 (2006.01); G01R 31/00 (2006.01); G01R 3/00 (2006.01); H03F 1/26 (2006.01); H04B 15/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A voltage sensor consists of a number of capacitive voltage sensors coupled to test points in an electrical power system. The outputs of the voltage sensors are digitized and processed by a digital processor, which determines a normal value for the monitored AC voltages, and then determines if the monitored AC voltages are acceptable based on variations from the normal value.