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. 19, 2006
Filed:
Sep. 17, 2001
Sjoerd G. Bosga, Västerås, SE;
Philip C. Kiaer, Västerås, SE;
Magnus Backman, Västerås, SE;
Mats Svensson, Borlänge, SE;
Per-olof Thureson, Grängesberg, SE;
Lars Jonsson, Västerås, SE;
Freddy Magnussen, Västerås, SE;
Per Larsson, Västerås, SE;
Stefan Valdemarsson, Lidköping, SE;
Sjoerd G. Bosga, Västerås, SE;
Philip C. Kiaer, Västerås, SE;
Magnus Backman, Västerås, SE;
Mats Svensson, Borlänge, SE;
Per-Olof Thureson, Grängesberg, SE;
Lars Jonsson, Västerås, SE;
Freddy Magnussen, Västerås, SE;
Per Larsson, Västerås, SE;
Stefan Valdemarsson, Lidköping, SE;
ABB AB, Västerås, SE;
Abstract
A method for evaluating a condition of a switching device. The switching device includes contact parts, an electric motor and a mechanical coupling device for transforming motion from the electric motor to at least one of the contact parts. A self-diagnostic test is performed on a component of the switching device. The test includes making at least one small movement with the electric motor. A switching device includes contact parts, an electric motor, a mechanical coupling device for transforming motion from the electric motor to at least one of the contact parts, and tester for making self-diagnostic tests, wherein the tester makes small motor movements that are a fraction of a full breaking movement, thereby producing data for evaluating a condition of the switching device.