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公开(公告)号：US20230207238A1
公开(公告)日：2023-06-29
申请号：US17982744
申请日：2022-11-08
Applicant: ABB S.p.A.
Inventor： Pierantonio Arrighetti , Pierre Corfdir , Markus Abplanalp , Ralf-Patrick Suetterlin
IPC: H01H33/10
Abstract: A switch pole for a low voltage switching device including an insulating casing defining an internal space with a contact area and an arc extinguishing area of said switch pole, a fixed contact assembly and a movable contact assembly positioned in said contact area and including, respectively, one or more fixed contacts and one or more movable contacts, which can be mutually coupled or uncoupled, and an arc chamber positioned in said arc extinguishing area and including a plurality of parallel arc-breaking plates and a terminal arc-breaking element, which includes a plate portion arranged in parallel to said arc-breaking plates and having one or more through openings and an elongated portion protruding from said plate portion and extending across said arc-extinguishing area, from said plate portion towards said fixed contact assembly.
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公开(公告)号：US11652336B2
公开(公告)日：2023-05-16
申请号：US17077301
申请日：2020-10-22
Applicant: ABB S.p.A.
Inventor： Pierceleste Benedetti , Alessio Bergamini , Giuseppe Nava , Damiano Cagliani
Abstract: A low and medium voltage electrical enclosure comprising a supporting structure which defines an internal space delimited by walls forming one or more compartments housing one or more electrical apparatuses. At least one of said walls is provided with one or more venting openings that put into communication said internal space with the outside of said low voltage electrical enclosure and/or one of said compartments with a second compartment. The venting openings are provided with a cover closing a corresponding venting opening in a first—closed—operating condition at first predetermined temperatures and the enclosure is provided with an actuating device adapted to open said cover in a second—open—operating condition at second predetermined temperatures. The actuating device comprises an actuating mechanism having a Shape Memory Alloy-based (SMA-based) actuating element having a first dimension at said first predetermined temperatures reversibly changeable into a second dimension at said second predetermined temperatures, the reversible change of dimension of said SMA-based actuating element from said first dimension to said second dimension determining the reversible movement of said cover from said first—closed—operating condition to said second—open—operating condition, and vice-versa.
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公开(公告)号：US20220341992A1
公开(公告)日：2022-10-27
申请号：US17714456
申请日：2022-04-06
Applicant: ABB S.p.A.
Inventor： Pierantonio Arrighetti , Enrico Ragaini
IPC: G01R31/327 , H02J3/38 , G05B13/04 , G01R19/165
Abstract: Described herein is a method for determining a presence of anomalous conditions in a switching apparatus installed in an electric line of an electric power distribution grid. The method includes a sequence of steps for adjusting a lumped-parameter model describing, for each electric phase, the behavior of the switching apparatus during the opening maneuvers of the switching apparatus. Simulation values provided by the lumped-parameter model are used for calculating estimation values indicative of the amounts of arc energy released by the breaking components of the switching apparatus during the opening maneuvers of the switching apparatus.
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公开(公告)号：US11476061B2
公开(公告)日：2022-10-18
申请号：US17349983
申请日：2021-06-17
Applicant: ABB S.p.A.
Inventor： Luca Raciti , Pierangelo Bolognini , Luca Omati
Abstract: A switching apparatus for electric power distribution grids including: a withdrawable first switching unit having one or more first electric poles; a withdrawable second switching unit having one or more second electric poles and electrically connected ins series with said first switching unit; and a controller implementing control strategies directed to increase the safety of the withdrawal manoeuvres of said first and second switching units.
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公开(公告)号：US11437200B2
公开(公告)日：2022-09-06
申请号：US16887378
申请日：2020-05-29
Applicant: ABB S.p.A.
Inventor： Marco Bonfanti , Mauro Ghislotti , Michele Ceroni
Abstract: A low voltage contact assembly including a rotating support having a body adapted to rotate around a rotation axis and supporting at least a first couple of movable contacts that can be coupled to/uncoupled from corresponding first fixed contacts by rotation around said rotation axis. The first couple of movable contacts include a first and a second movable contacts housed in the rotating support. The low voltage assembly further includes a pressure exerting device having a pressing bar operatively coupled to the first and second elongated contact body and transversally placed with respect to the rotation plane of the first and second elongated contact bodies.
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公开(公告)号：US11302502B2
公开(公告)日：2022-04-12
申请号：US16983297
申请日：2020-08-03
Applicant: ABB S.p.A.
Inventor： Stefano Cassina , Alessandro Adami
Abstract: A terminal clamp cover device for low voltage circuit breakers, in particular for molded case circuit breakers, having one or more phases, each provided with a terminal for the electrical connection of the circuit breaker, a clamp for the connection of the terminal to an electrical circuit and a vent opening to discharge the gases produced in the circuit breaker during opening/closing operations. The device includes an insulating body that covers the clamp, the insulating body being provided on at least one portion of its outer surface with a plurality of heat dissipating elements. A low voltage circuit breaker, in particular a low voltage molded case circuit breaker, including a device of the type described also forms part of the application.
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公开(公告)号：US11276990B2
公开(公告)日：2022-03-15
申请号：US16381352
申请日：2019-04-11
Applicant: ABB S.p.A.
Inventor： Davide Valsecchi , Simone Angelo Proserpio
Abstract: An electrical cabinet includes a frame hinge fixed to a frame of the cabinet and a door hinge fixed to a door of the cabinet. The frame hinge forms an insertion window for receiving the door hinge. A hinge pin is inserted through aligned seats of the frame hinge. The door hinge is inserted into the insertion window around the hinge pin. A blocking screw or pin is inserted through a third seat in a direction substantially perpendicular to the hinge pin to block the hinge pin and secure the door to the frame.
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公开(公告)号：US20220037917A1
公开(公告)日：2022-02-03
申请号：US17375545
申请日：2021-07-14
Applicant: ABB S.p.A.
Inventor： Luigi Arturo Degli Innocenti , Francesco Rosa , Alessio Bergamini , Luca Omati
Abstract: A switching apparatus for electric power distribution grids including: a withdrawable first switching unit having one or more first electric poles; a withdrawable second switching unit having one or more second electric poles and electrically connected ins series with said first switching unit; wherein said second switching unit includes an emergency control arrangement activatable by a user to make said second switching unit to carry out an opening manoeuvre.
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公开(公告)号：US11070052B2
公开(公告)日：2021-07-20
申请号：US15387135
申请日：2016-12-21
Applicant: ABB S.p.A.
Abstract: A circuit protection system includes a plurality of circuit protection devices and a central controller. Each circuit protection device includes a protection switch for connecting or disconnecting a corresponding protected circuit, and a sensing module for sensing electrical parameter data. The central controller is in communication with each of the circuit protection devices, and is constructed to receive the electrical parameter data; determine whether a fault condition has occurred based on the electrical parameter data; and send a signal to open the protection switch for each protected circuit experiencing a fault condition.
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公开(公告)号：US20210098219A1
公开(公告)日：2021-04-01
申请号：US17050020
申请日：2019-04-17
Applicant: ABB S.P.A.
Inventor： Alessandro Adami , Luigi Arturo Degli Innocenti
Abstract: A circuit breaker including: a first fixed contact and a first movable contact which can be switched between a closed status where they are coupled to each other and a tripped status where they are separated from each other; a signaling device for signaling when the circuit breaker is in a tripped status; a trip actuator movable from an initial position to an end-stroke position when the first movable contact has to be switched from the closed status into the tripped status; a tripping bar which is connected to the first movable contact so as when the trip actuator moves from the initial position, the tripping bar moves and triggers switching of the first movable contact from the closed status into the tripped status; and a trip member having a single-piece shaped body which includes: a first portion interacting with and actuated by the trip actuator to move from a rest position towards an actuated position when the trip actuator moves from the initial position; a second portion which is spaced apart from the first portion, interacting and actuating the tripping bar, and a third portion which is spaced apart from the first and second portions, interacting and actuating the signaling device.
