公开(公告)号：US10553376B2

公开(公告)日：2020-02-04

申请号：US15783183

申请日：2017-10-13

Applicant: ABB Schweiz AG

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

IPC: H01H33/22 ,  H01H33/18 ,  H01H33/70 ,  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：US20190172668A1

公开(公告)日：2019-06-06

申请号：US16253367

申请日：2019-01-22

Applicant: ABB Schweiz AG

Inventor： Bernardo Galletti ,  Manuel Gotti ,  Markus Bujotzek ,  Martin Seeger

IPC: H01H33/70

CPC classification number: H01H33/7023 ,  H01H33/91

Abstract: A gas-insulated high-voltage switching device which includes an arcing contact arrangement having a first arcing zone member and a second arcing zone member that are movable relative to one another along an axis. An auxiliary nozzle surrounds at least a part of a second arcing contact unit and has an auxiliary nozzle throat having an axial extension and allowing passage at least of an end of the first arcing contact unit. A main nozzle throat has an axial extension sideways of the auxiliary nozzle throat and allows passage at least of the end of the first arcing contact unit. A cross-sectional area of the main nozzle throat is substantially decreasing in the direction away from the auxiliary nozzle throat so as to form a substantially converging duct for the flow of an arc-extinguishing gas.

公开(公告)号：US20200161064A1

公开(公告)日：2020-05-21

申请号：US16773297

申请日：2020-01-27

Applicant: ABB Schweiz 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.

公开(公告)号：US20190115174A1

公开(公告)日：2019-04-18

申请号：US16207946

申请日：2018-12-03

Applicant: ABB Schweiz AG

Inventor： Bernardo Galletti ,  Elham Attar ,  Jan Carstensen ,  Magne Saxegaard ,  Martin Kristoffersen ,  Martin Seeger ,  Michael Schwinne ,  Nitesh Ranjan ,  Patrick Stoller

IPC: H01H33/70 ,  H01H33/12 ,  H01H33/91 ,  H01H33/56

Abstract: A gas-insulated low- or medium-voltage load break switch includes: a housing defining a housing volume for holding an insulation gas at an ambient pressure; a first arcing contact and a second arcing contact arranged within the housing volume, the first and second arcing contacts being movable in relation to each other along an axis of the load break switch and defining a quenching region in which an arc is formed during a current breaking operation; a pressurizing system having a pressurizing chamber arranged within the housing volume for pressurizing a quenching gas from an ambient pressure p0 to a quenching pressure pquench during the current breaking operation; and a nozzle system arranged within the housing volume for blowing the pressurized quenching gas in a subsonic flow pattern from the pressurization chamber onto the arc formed in the quenching region during the current breaking operation. The nozzle system includes at least one nozzle arranged for blowing the quenching gas from an off-axis position predominantly radially inwardly onto the quenching region.

公开(公告)号：US10991528B2

公开(公告)日：2021-04-27

申请号：US16626199

申请日：2018-06-12

Applicant: ABB Schweiz AG

Inventor： Nitesh Ranjan ,  Elham Attar ,  Jan Carstensen ,  Magne Saxegaard ,  Martin Kristoffersen ,  Ståle Talmo ,  Stanley Lohne ,  Michael Schwinne ,  Martin Seeger

IPC: H01H33/12 ,  H01H33/22 ,  H01H33/56 ,  H01H33/70 ,  H01H33/91

Abstract: A load-break switch has a housing holding insulation gas at ambient pressure; a first main contact and a second main contact being movable relative to each other in an axial direction of the switch; a first arcing contact and a second arcing contact being movable relative to each other in the axial direction and defining an arcing region where an arc is formed during a current breaking operation, wherein the arcing region is located radially inward from the first main contact; a pressurizing system pressurizing a quenching gas during the current breaking operation; and a nozzle system arranged to blow the pressurized quenching gas onto the arc. The first main contact includes at least one pressure release opening to allow gas flow in a radial outward direction. A total area of the pressure release opening suppresses a reduction of gas flow out of the pressure release opening.

公开(公告)号：US10964498B2

公开(公告)日：2021-03-30

申请号：US16207946

申请日：2018-12-03

Applicant: ABB Schweiz AG

Inventor： Bernardo Galletti ,  Elham Attar ,  Jan Carstensen ,  Magne Saxegaard ,  Martin Kristoffersen ,  Martin Seeger ,  Michael Schwinne ,  Nitesh Ranjan ,  Patrick Stoller

IPC: H01H33/12 ,  H01H33/56 ,  H01H33/70 ,  H01H33/88 ,  H01H33/91 ,  H01H9/52

Abstract: A gas-insulated low- or medium-voltage load break switch includes: a housing defining a housing volume for holding an insulation gas at an ambient pressure; a first arcing contact and a second arcing contact arranged within the housing volume, the first and second arcing contacts being movable in relation to each other along an axis of the load break switch and defining a quenching region in which an arc is formed during a current breaking operation; a pressurizing system having a pressurizing chamber arranged within the housing volume for pressurizing a quenching gas from an ambient pressure p0 to a quenching pressure pquench during the current breaking operation; and a nozzle system arranged within the housing volume for blowing the pressurized quenching gas in a subsonic flow pattern from the pressurization chamber onto the arc formed in the quenching region during the current breaking operation. The nozzle system includes at least one nozzle arranged for blowing the quenching gas from an off-axis position predominantly radially inwardly onto the quenching region.

公开(公告)号：US20180040442A1

公开(公告)日：2018-02-08

申请号：US15783183

申请日：2017-10-13

Applicant: ABB Schweiz AG

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

IPC: H01H33/22 ,  C07C49/167 ,  H01H33/18 ,  H01H33/70 ,  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.