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:
Oct. 12, 2021
Filed:
Jun. 20, 2018
Abb Schweiz Ag, Baden, CH;
Elisabeth Lindell, Västerås, SE;
Andrea Bianco, Sesto San Giovanni, IT;
Andrea Ricci, Rome, IT;
Lars Jonsson, Västerås, SE;
Stefan Halén, Västerås, SE;
Lars Liljestrand, Västerås, SE;
ABB Schweiz AG, Baden, CH;
Abstract
The present invention relates to a method for controlling a motor-driven vacuum circuit breaker. The method comprises initiate opening (S) the circuit breaker, wherein the circuit breaker moves with an average opening speed of a contact pair of the circuit breaker, from a closed position to an open position of the circuit breaker, and decelerating (S) the opening speed of the contact pair to below the average opening speed before the open position is reached to avoid overshoot, and initiate closing (S) the circuit breaker, wherein the circuit breaker moves with an average closing speed of the contact pair, from the open position to the closed position, and decelerating (S) the closing speed of the contact pair to below the average closing speed before contact touch at the closed position, wherein the circuit breaker moves with the decelerated speed at contact touch. A motor-driven vacuum circuit breaker, a computer program and a computer program product are also presented.