公开(公告)号：US11145470B2

公开(公告)日：2021-10-12

申请号：US16641547

申请日：2018-06-20

Applicant: ABB Schweiz AG

Inventor： Elisabeth Lindell ,  Andrea Bianco ,  Andrea Ricci ,  Lars Jonsson ,  Stefan Halén ,  Lars Liljestrand

IPC: H01H3/26 ,  H01H11/00

Abstract: The present invention relates to a method for controlling a motor-driven vacuum circuit breaker. The method comprises initiate opening (S100) 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 (S110) 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 (S120) 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 (S130) 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.

公开(公告)号：US20200379046A1

公开(公告)日：2020-12-03

申请号：US16887398

申请日：2020-05-29

Applicant: ABB Schweiz AG

Inventor： Andrea Bianco ,  Andrea Ricci ,  Elisabeth Lindell ,  Stefan Halén ,  Fabio Mannino

IPC: G01R31/327 ,  H02B1/04 ,  H01H3/32

Abstract: The invention relates to a control unit for a medium voltage switching apparatus. The control unit is adapted to carry out a diagnostic method to check operating conditions of one or more components of said electric poles. The diagnostic method includes the following steps: basing on a selected ideal position curve, obtaining one or more first curves indicative of an ideal behaviour of said switching apparatus, during an opening manoeuvre or closing manoeuvre of the switching apparatus; basing on detection signals provided by a closed-loop control arrangement of said control unit, calculating one or more second curves indicative of an actual behaviour of said switching apparatus, during an opening manoeuvre or closing manoeuvre of said switching apparatus; and carrying out a comparison procedure among said first and second curves.

公开(公告)号：US20200266008A1

公开(公告)日：2020-08-20

申请号：US16641547

申请日：2018-06-20

Applicant: ABB Schweiz AG

Inventor： Elisabeth Lindell ,  Andrea Bianco ,  Andrea Ricci ,  Lars Jonsson ,  Stefan Halén ,  Lars Liljestrand

IPC: H01H3/26 ,  H01H11/00

Abstract: The present invention relates to a method for controlling a motor-driven vacuum circuit breaker. The method comprises initiate opening (S100) 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 (S110) 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 (S120) 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 (S130) 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.