公开(公告)号：US20230420932A1

公开(公告)日：2023-12-28

申请号：US18337784

申请日：2023-06-20

Applicant: ABB Schweiz AG

Inventor： Elisabeth Lindell ,  Johan Nohlert ,  Andrea Bianco ,  Stefan Halén ,  Jesper Magnusson

IPC: H02H9/00 ,  H02H7/04

CPC classification number: H02H9/002 ,  H02H7/042

Abstract: A method of operating a switching device in a system. The method includes monitoring a voltage; operating the system at each of a plurality of system configurations; and, for each of the system configurations and a predetermined same opening angle relative to a reference angle of the monitored voltage, determining a suitable closing angle relative to the reference angle and storing information about the determined suitable closing angle in association with the system configuration in a database. The method then includes, determining a system configuration in the system; at the predetermined same opening angle, opening the switching device; from the database, obtaining a closing angle of the determined suitable closing angles, wherein the system configuration with which the obtained closing angle is associated in the database corresponds to the determined system configuration; and at the obtained closing angle, closing the switching device.

公开(公告)号：US11075036B2

公开(公告)日：2021-07-27

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：US20240213764A1

公开(公告)日：2024-06-27

申请号：US18534998

申请日：2023-12-11

Applicant: ABB Schweiz AG

Inventor： Elisabeth Lindell ,  Andrea Bianco ,  Stefan Halén ,  Carlo Taborelli

IPC: H02H7/16

CPC classification number: H02H7/16

Abstract: A method for reducing inrush current to an ungrounded capacitor bank when re-closing a switching device. The method includes opening the switching device, including breaking the current of a first phase of the three phases, and after a predetermined opening time period simultaneously breaking the currents of a second phase and a third phase of the three phases. The method also includes re-closing the switching device, including simultaneously making the respective currents of the second and third phases, and after a predetermined closing time period making the current of the first phase.

公开(公告)号：US20190371548A1

公开(公告)日：2019-12-05

申请号：US16483496

申请日：2018-01-15

Applicant: ABB Schweiz AG

Inventor： Carlo Boffelli ,  Lars E. Jonsson ,  Stefan Halén

IPC: H01H33/666 ,  H01H3/26 ,  H01H3/42

Abstract: A switching apparatus for medium voltage electric systems, the switching apparatus including one or more electric poles, each electrically coupleable with a corresponding electric line, the switching apparatus including: for each electric pole, a fixed contact and a corresponding movable contact, the movable contact being reversibly movable, along a corresponding translational displacement axis, between a decoupled position from the fixed contact and a coupled position with the fixed contact; an actuation assembly having, for each electric pole, an actuation shaft rotating about a rotation axis during a closing manoeuvre or an opening manoeuvre of the switching apparatus; for each electric pole, a motion transmission assembly including an eccentric mechanism operatively coupled with the actuation shaft.

公开(公告)号：US20230420933A1

公开(公告)日：2023-12-28

申请号：US18337920

申请日：2023-06-20

Applicant: ABB Schweiz AG

Inventor： Elisabeth Lindell ,  Johan Nohlert ,  Stefan Halén ,  Jesper Magnusson

IPC: H02H9/00 ,  H02H7/04 ,  H01H9/56

CPC classification number: H02H9/002 ,  H02H7/04 ,  H01H9/56

Abstract: A start-up method for reducing inrush current to a transformer when closing a switching device. The switching device includes three single-pole operated current interrupting means. The method includes monitoring a voltage. The method includes, for each of a sequence of iterations: at a same opening angle relative to a reference angle of the voltage, starting an opening sequence of the switching device; at a closing angle relative to the reference angle, which is shifted in relation to the closing angle of all other iterations in the sequence, starting a closing sequence of the switching device; and obtaining an indication of the overall inrush current resulting from the closing. The method includes selecting for future use with the opening angle, the closing angle of one of the iterations in which the overall inrush current is relatively low when compared with the other iterations of the sequence.

公开(公告)号：US11531066B2

公开(公告)日：2022-12-20

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: H01H3/32 ,  H02B1/04 ,  G01R31/327

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：US10832881B2

公开(公告)日：2020-11-10

申请号：US16483496

申请日：2018-01-15

Applicant: ABB Schweiz AG

Inventor： Carlo Boffelli ,  Lars E. Jonsson ,  Stefan Halén

IPC: H01H33/666 ,  H01H33/662 ,  H01H3/26 ,  H01H3/42

Abstract: A switching apparatus for medium voltage electric systems, the switching apparatus including one or more electric poles, each electrically coupleable with a corresponding electric line, the switching apparatus including: for each electric pole, a fixed contact and a corresponding movable contact, the movable contact being reversibly movable, along a corresponding translational displacement axis, between a decoupled position from the fixed contact and a coupled position with the fixed contact; an actuation assembly having, for each electric pole, an actuation shaft rotating about a rotation axis during a closing manoeuvre or an opening manoeuvre of the switching apparatus; for each electric pole, a motion transmission assembly including an eccentric mechanism operatively coupled with the actuation shaft.

公开(公告)号：US20200312592A1

公开(公告)日：2020-10-01

申请号：US16826141

申请日：2020-03-20

Applicant: ABB Schweiz AG

Inventor： Elisabeth Lindell ,  Stefan Halén ,  Lars Jonsson

IPC: H01H33/02 ,  H01H33/59 ,  H01H9/00 ,  H01H9/56 ,  H05B7/02

Abstract: A method of performing a circuit-breaking and closing operation in a three-phase system having a first phase, a second phase lagging the first phase by 120°, and a third phase lagging the first phase by 240°, includes: a) opening only one of the first phase, the second phase and the third phase before a zero crossing of a current of the corresponding phase, b) opening the remaining phases of the first phase, the second phase and the third phase after step a), and c) closing the first phase, the second phase and the third phase simultaneously or essentially simultaneously at a phase to ground voltage of the phase of the first phase, the second phase and the third phase which lagging the phase that was opened in step a) by 120° in a time range from 60° before a peak of the phase to 90° after the peak.

公开(公告)号：US10242826B2

公开(公告)日：2019-03-26

申请号：US15747832

申请日：2016-06-17

Applicant: ABB Schweiz AG

Inventor： Elisabeth Lindell ,  Lars Liljestrand ,  Stefan Halén

IPC: H01H33/664 ,  H01H33/59 ,  H02H3/02 ,  H02B1/26 ,  H02B1/28 ,  H02B13/00 ,  H01H9/56 ,  H01H33/66

Abstract: An electric power distribution switchgear is connected between an electric power grid and an electric power equipment. The switchgear includes a synchronized vacuum switching apparatus configured to break the current to the electric power equipment using a synchronized technique to avoid re-ignition during the breaking and thus any transients caused by such re-ignition; and a surge arrester arrangement connected to the electric power equipment, the surge arrester arrangement being designed and configured to only handle transients caused by the current chopping at the breaking. The surge arrester arrangement can be arranged remote from the electric power equipment, such as e.g. in the same casing as the synchronized vacuum switching apparatus.

公开(公告)号：US11152777B2

公开(公告)日：2021-10-19

申请号：US16903481

申请日：2020-06-17

Applicant: ABB Schweiz AG

Inventor： Carlo Bofelli ,  Andrea Bianco ,  Roberto Penzo ,  Christian Reuber ,  Fabio Mannino ,  Elisabeth Lindell ,  Stefan Halén

IPC: H02H3/02 ,  H01H9/56 ,  H01H33/666 ,  H02B11/02

Abstract: The invention relates to a medium voltage switching apparatus. The medium voltage switching apparatus includes one or more electric poles, each electrically coupleable with a corresponding electric line; for each electric pole, a fixed contact and a movable contact, the movable contact being reversibly movable between a decoupled position from the fixed contact and a coupled position with the fixed contact, the movable contact moving from the decoupled position to the coupled position during an closing manoeuvre of the switching apparatus and moving from the coupled position to the decoupled position during an opening manoeuvre of the switching apparatus; and actuating means adapted to actuate the movable contacts of the one or more electric poles. A control unit is adapted to select and carry out a selectable control routine in response to receiving an input signal at an input arrangement corresponding to the selectable routine.