公开(公告)号：US11705714B2

公开(公告)日：2023-07-18

申请号：US17549208

申请日：2021-12-13

Applicant: ABB Schweiz AG

Inventor： Thorsten Strassel ,  Antonello Antoniazzi ,  Markus Abplanalp ,  Thierry Delachaux

IPC: H02H3/02 ,  H02H7/22 ,  H02H9/02

CPC classification number: H02H3/025 ,  H02H7/22 ,  H02H9/02

Abstract: A switching apparatus includes first and second electric terminals, and first and second electric branches comprising one or more switching devices. The second electric branch is electrically connected in parallel with said first electric branch between said first and second electric terminals. The switching apparatus comprises a current blocking circuit adapted to block a current along said second branch. The current blocking circuit includes a first switching device of solid-state type and a first electronic circuit electrically connected in parallel to said first switching device of solid-state type. The switching apparatus further comprises a current limiting circuit adapted to limit a current flowing along said second electric branch. Said current limiting circuit is electrically connected in series with said current blocking circuit and it includes a second switching device of solid-state type and a second electronic circuit electrically connected in parallel to said second switching device of solid-state type.

公开(公告)号：US11574777B2

公开(公告)日：2023-02-07

申请号：US17549235

申请日：2021-12-13

Applicant: ABB Schweiz AG

Inventor： Thorsten Strassel ,  Antonello Antoniazzi ,  Markus Abplanalp ,  Thierry Delachaux

IPC: H01H9/54 ,  H02J1/12

Abstract: A switching apparatus for an electric grid includes first and second electric terminals, each having first and second electric branches having a plurality of switching devices. The first electric branch includes a first switching device switchable between open and closed states, which is driven by a current flowing along said first switching device and without receiving an external control signal or an external power supply, said first switching device switching from said closed state to said open state, when the current flowing along said switching apparatus exceeds a corresponding predefined threshold value or when the changing rate of the current flowing along said switching apparatus exceeds a corresponding predefined threshold value or upon a combination of these two conditions. A second switching device is connected in series with the first switching device and is switchable between closed and open states upon receiving a corresponding input control signal.

公开(公告)号：US09640974B2

公开(公告)日：2017-05-02

申请号：US14513939

申请日：2014-10-14

Applicant: ABB Schweiz AG

Inventor： Markus Abplanalp ,  Rudolf Gati

IPC: H02H3/087 ,  H01H33/08 ,  H01H33/59 ,  H01H33/664 ,  H02H1/00 ,  H02H1/06

CPC classification number: H02H3/087 ,  H01H33/08 ,  H01H33/596 ,  H01H33/6641 ,  H02H1/0015 ,  H02H1/063

Abstract: A DC circuit breaker including a pair of arcing contact members for holding an arc, an interaction element, adapted for interacting with the arc in dependence of whether the arc is in a first or second state such that the arc voltage drop in the first state is lower than the drop in the second state, a resonance branch coupled in parallel to the contact members thereby forming a resonance circuit adapted for letting a resonance branch current Ir oscillate thereby inducing oscillations of an arc current Ia, wherein the resonance branch includes a coupling element for coupling the resonance branch with the arc, such that the arc is brought to the first state when the current Ir in the resonance branch has a first direction, and that the arc is brought to the second state when the current Ir in the resonance branch has a second direction.

公开(公告)号：US11688570B2

公开(公告)日：2023-06-27

申请号：US17187923

申请日：2021-03-01

Applicant: ABB Schweiz AG

Inventor： Gabriel Lantz ,  Matthias Bator ,  Markus Abplanalp ,  Ralf-Patrick Suetterlin

IPC: H01H33/04 ,  H01H33/42

CPC classification number: H01H33/04 ,  H01H33/42

Abstract: A switching device for low-voltage or medium-voltage applications including: one or more electric poles; for each electric pole, at least a fixed contact and at least a movable contact, each movable contact being reversibly movable between a coupled position, at which the movable contact is coupled with a corresponding fixed contact, and an uncoupled position, at which the movable contact is separated from the fixed contact, wherein a separation gap is present between the movable contact and the fixed contact, when the movable contact is in the uncoupled position. The switching device includes, for each electric pole, at least an arc-diverting element made of electrically insulating material.

公开(公告)号：US20220190582A1

公开(公告)日：2022-06-16

申请号：US17549208

申请日：2021-12-13

Applicant: ABB Schweiz AG

Inventor： Thorsten Strassel ,  Antonello Antoniazzi ,  Markus Abplanalp ,  Thierry Delachaux

IPC: H02H3/02 ,  H02H7/22 ,  H02H9/02

Abstract: A switching apparatus includes first and second electric terminals, and first and second electric branches comprising one or more switching devices. The second electric branch is electrically connected in parallel with said first electric branch between said first and second electric terminals. The switching apparatus comprises a current blocking circuit adapted to block a current along said second branch. The current blocking circuit includes a first switching device of solid-state type and a first electronic circuit electrically connected in parallel to said first switching device of solid-state type. The switching apparatus further comprises a current limiting circuit adapted to limit a current flowing along said second electric branch. Said current limiting circuit is electrically connected in series with said current blocking circuit and it includes a second switching device of solid-state type and a second electronic circuit electrically connected in parallel to said second switching device of solid-state type.

公开(公告)号：US20220189713A1

公开(公告)日：2022-06-16

申请号：US17549235

申请日：2021-12-13

Applicant: ABB Schweiz AG

Inventor： Thorsten Strassel ,  Antonello Antoniazzi ,  Markus Abplanalp ,  Thierry Delachaux

IPC: H01H9/54 ,  H02J1/12

Abstract: A switching apparatus for an electric grid includes first and second electric terminals, each having first and second electric branches having a plurality of switching devices. The first electric branch includes a first switching device switchable between open and closed states, which is driven by a current flowing along said first switching device and without receiving an external control signal or an external power supply, said first switching device switching from said closed state to said open state, when the current flowing along said switching apparatus exceeds a corresponding predefined threshold value or when the changing rate of the current flowing along said switching apparatus exceeds a corresponding predefined threshold value or upon a combination of these two conditions. A second switching device is connected in series with the first switching device and is switchable between closed and open states upon receiving a corresponding input control signal.

公开(公告)号：US20210327663A1

公开(公告)日：2021-10-21

申请号：US17187923

申请日：2021-03-01

Applicant: ABB Schweiz AG

Inventor： Gabriel Lantz ,  Matthias Bator ,  Markus Abplanalp ,  Ralf-Patrick Suetterlin

IPC: H01H33/04 ,  H01H33/42

Abstract: A switching device for low-voltage or medium-voltage applications including: one or more electric poles; for each electric pole, at least a fixed contact and at least a movable contact, each movable contact being reversibly movable between a coupled position, at which the movable contact is coupled with a corresponding fixed contact, and an uncoupled position, at which the movable contact is separated from the fixed contact, wherein a separation gap is present between the movable contact and the fixed contact, when the movable contact is in the uncoupled position. The switching device includes, for each electric pole, at least an arc-diverting element made of electrically insulating material.