公开(公告)号：US20220293367A1

公开(公告)日：2022-09-15

申请号：US17654109

申请日：2022-03-09

Applicant: ABB Schweiz AG

Inventor： Terje Thingstad Pettersen ,  Ståle Talmo ,  Stanley Lohne ,  Elham Attar

IPC: H01H33/56 ,  H01H9/10 ,  H01H31/12 ,  H01H31/00

Abstract: A switch-fuse module and a ring main unit. The switch-fuse module includes: a housing having therein a first enclosure including a first insulating gas and a second enclosure including a second insulating gas; at least one switch disconnector arranged within the first enclosure; and at least one fuse at least partially surrounded by the second enclosure; wherein each of the first insulating gas and the second insulating gas has a global warming potential less than a global warming potential of SF6, and the first enclosure is different and separate from the second enclosure.

公开(公告)号：US20220293352A1

公开(公告)日：2022-09-15

申请号：US17653977

申请日：2022-03-08

Applicant: ABB Schweiz AG

Inventor： Terje Thingstad Pettersen ,  Ståle Talmo ,  Stanley Lohne ,  Elham Attar

IPC: H01H9/10 ,  H01H9/22 ,  H01H3/46

Abstract: A switch-fuse module and a ring main unit. The switch-fuse module includes: at least one fuse; and at least one fuse canister having the fuse inside; the security device including: at least one slider configured to linearly move between an open slider position and a closed slider position; at least one earthing switch that i) is galvanically connected to an end of the fuse, ii) is operable between an open and a closed state, iii) is designed to earth the end of the fuse in the closed state, and iv) is coupled to the slider in such a manner that the open slider position effects the open state of the earthing switch and the closed slider position effects the closed state of the earthing switch; an energy-storing propulsion element configured to move the earthing switch from the open to the closed state when discharging; and a locking mechanism adapted for blocking access to the fuse in a locked state and for releasing access to the fuse in an unlocked state, wherein the slider is coupled to the locking mechanism in such a manner that the slider is in the closed slider position while the locking mechanism is in the unlocked state, so that the fuse may only be accessed if it is ensured that the fuse is earthed.

公开(公告)号：US20210193416A1

公开(公告)日：2021-06-24

申请号：US17118199

申请日：2020-12-10

Applicant: ABB Schweiz AG

Inventor： Elham Attar ,  Magne Saxegaard ,  Richard Lauritzen ,  Ståle Talmo ,  Stanley Lohne ,  Martin Kristoffersen ,  Wilhelm Rondeel

IPC: H01H33/91 ,  H02B13/045 ,  H01H33/02 ,  H02B13/055 ,  H01H33/22

Abstract: A gas-insulated puffer-type switch device for operating inside a sealed gas tight enclosure of an electric power distribution switchgear, the sealed gas tight enclosure being filled with a dielectric gas having a global warming potential lower than that of SF6. The switch device has at least one of improved compactness, minimised electrical stress, maximised heat dissipation and reduced environmental impact.

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：US20190304719A1

公开(公告)日：2019-10-03

申请号：US16304583

申请日：2017-06-02

Applicant: ABB Schweiz AG

Inventor： Magne Saxegaard ,  Richard Lauritzen ,  Ståle Talmo ,  Stanley Lohne

IPC: H01H33/64 ,  H01H33/53 ,  H02B13/035

Abstract: A switching device for an encapsulated electric power distribution switchgear and an electric power distribution switchgear with at least one such switching device are disclosed. The switching device has a first electrically conducting housing which encloses an actuator mechanism for a first contact assembly and a second electrically conducting housing which encloses a second contact assembly. The first electrically conducting housing is arranged at a distance from the second electrically conducting housing. The switching device further has a third housing which is electrically insulating and arranged between the first electrically conducting housing and the second electrically conducting housing. The switching device is a puffer type switch.