公开(公告)号：US11062862B2

公开(公告)日：2021-07-13

申请号：US16772606

申请日：2018-12-21

Applicant: ABB Power Grids Switzerland AG

Inventor： Bernardo Galletti ,  Valeria Teppati ,  Emmanouil Panousis ,  Angelos Garyfallos ,  Branimir Radisavljevic ,  Joerg Lehmann ,  Christoph Reutlinger ,  Daniel Over ,  Patrick Stoller

IPC: H01H1/38 ,  H01H33/70 ,  H01H33/90 ,  H01H33/95

Abstract: The present disclosure provides a gas-insulated high or medium voltage circuit breaker including a first arcing contact and a second arcing contact, wherein at least one of the two arcing contacts is axially movable including a first and a second state of motion along a switching axis, wherein during a breaking operation, an arc between the first arcing contact and the second arcing contact is formed in an arcing region; a nozzle including a channel directed to the arcing region, for blowing an arc-extinguishing gas to the arcing region during the breaking operation; a diffuser adjacent to the nozzle, for transporting the gas from the arcing region to a region downstream of the diffuser; a buffer volume directly downstream of the diffuser, and an enclosure substantially surrounding the buffer volume circumferentially.

公开(公告)号：US11087939B2

公开(公告)日：2021-08-10

申请号：US16773297

申请日：2020-01-27

Applicant: ABB Power Grids Switzerland AG

Inventor： Denis Tehlar ,  Martin Seeger ,  Nitesh Ranjan ,  Patrick Stoller ,  Raffael Buehler ,  Jan Carstensen

IPC: H01H33/52 ,  H01H33/12 ,  H01H33/18 ,  H01H33/70 ,  H01H33/90 ,  H01H33/91 ,  C07C49/167 ,  H01H33/86

Abstract: The present invention relates to a device for interrupting non-short circuit currents only, and in particular relates to a disconnector, more particularly high voltage disconnector, or to an earthing switch, more particularly make-proof earthing switch, and further relates to a low voltage circuit breaker. The device comprises at least two contacts movable in relation to each other between a closed state and an open state and defining an arcing region, in which an arc is generated during a current interrupting operation and in which an arc-quenching medium comprising an organofluorine compound is present. According to the application, a counter-arcing component is allocated to the arcing region, the counter-arcing component being designed for counteracting the generation of an arc and/or being designed for supporting the extinction of an arc.

公开(公告)号：US20210327665A1

公开(公告)日：2021-10-21

申请号：US17365445

申请日：2021-07-01

Applicant: ABB Power Grids Switzerland AG

Inventor： Denis Tehlar ,  Martin Seeger ,  Nitesh Ranjan ,  Patrick Stoller ,  Raffael Buehler ,  Jan Carstensen

IPC: H01H33/22 ,  H01H33/18 ,  H01H33/70 ,  H01H33/90 ,  H01H33/91 ,  C07C49/167 ,  H01H33/86

Abstract: The present invention relates to a device for interrupting non-short circuit currents only, and in particular relates to a disconnector, more particularly high voltage disconnector, or to an earthing switch, more particularly make-proof earthing switch, and further relates to a low voltage circuit breaker. The device comprises at least two contacts movable in relation to each other between a closed state and an open state and defining an arcing region, in which an arc is generated during a current interrupting operation and in which an arc-quenching medium comprising an organofluorine compound is present. According to the application, a counter-arcing component is allocated to the arcing region, the counter-arcing component being designed for counteracting the generation of an arc and/or being designed for supporting the extinction of an arc.