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:
Sep. 28, 1999
Filed:
Apr. 11, 1997
Jean Marmonier, Aix les Bains, FR;
GEC Alstrom T & D SA, Paris, FR;
Abstract
The present invention relates to a method of monitoring electrical wear on selector switch disconnectors in a bay of a high voltage station that includes a set of distribution busbars connected to at least three electrical circuits constituted by an inlet bay, an outlet bay, and a bay for coupling together the busbars. During an operation of transferring a bay under load, when the computer of the corresponding bay detects that the disconnectors of its lines for connection to the distribution busbars are closed, the computer sends a message to the other computers which then determine and store data comprising the magnitude and the polarity of the current flowing through the corresponding bays, and when the computer of the bay in which transfer is taking place has detected opening of the selector switch disconnector in the line for connection to the busbar from which distribution has been transferred, said data prior to the opening is stored and the square of the current interrupted by said disconnector is calculated.