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:
Dec. 13, 1977
Filed:
May. 24, 1976
Applicant:
Inventors:
Hans Glavitsch, Nussbaumen, CH;
Michael Vitins, Zurich, CH;
Assignee:
BBC Brown Boveri & Company Limited, Baden, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R / ;
U.S. Cl.
CPC ...
324 52 ;
Abstract
A method for locating a fault on a line wherein starting from a fault-free operating state of the line there is derived a substitute-measurement voltage signal which corresponds at least approximately to a frequency component of a line voltage both in magnitude and phase and is approximately independent of breakdown of the line voltage at least for a limited time interval. The substitute-measurement voltage signal is used to form at least one substitute-traveling wave signal and a substitute-evaluation signal.