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:
Feb. 24, 2009
Filed:
Feb. 05, 2007
Applicants:
Ernst Scholtz, Raleigh, NC (US);
Reynaldo F. Nuqui, Cary, NC (US);
John D. Finney, Raleigh, NC (US);
Inventors:
Ernst Scholtz, Raleigh, NC (US);
Reynaldo F. Nuqui, Cary, NC (US);
John D. Finney, Raleigh, NC (US);
Assignee:
ABB Research Ltd., Zurich, CH;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 25/00 (2006.01); G01K 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A sag calculator () computes sag for a span of a section of a power line based at least in part upon a temperature of conductor lines in the line section. A temperature calculator () determines the temperature by computing a resistance ascertained through augmented state estimation techniques performed by a state estimator (). A Supervisory Control and Data Acquisition (SCADA) system () acquires data used by the state estimator () to compute the resistance.