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. 25, 2014
Filed:
Aug. 29, 2008
Ying Yang, Beijing, CN;
Bin Su, Beijing, CN;
Lei Jing, Beijing, CN;
Qianjin Liu, Beijing, CN;
ABB Research Ltd., Zurich, CH;
Abstract
A method and apparatus for fault identification in a transmission line are provided. The method may include measuring at an end of the transmission line when the transmission line has a fault to obtain a measured signal, comparing the measured signal with a predefined standard signal, the predefined standard signal having beat frequency characteristic; and identifying that the fault is a transient fault if the measured signal matches the predefined standard signal according to a result of the comparison, or the fault is a permanent fault if the measured signal does not match the predefined standard signal according to the result of the comparison.