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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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Patent Agency Ranking
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.
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公开(公告)号：US20210050169A1
公开(公告)日：2021-02-18
申请号：US16944275
申请日：2020-07-31
Applicant: ABB S.p.A.
Inventor： Nicola Bresciani , Marco Bonfanti
Abstract: A pole actuation booster mechanism for a four-poles low voltage circuit breaker, which includes: a first operating member adapted to be operatively connected to the operating shaft of the circuit breaker and moving together with said shaft during its rotation from an open position to a closed position, and vice-versa, of said circuit breaker over a range of movement having a first, a second and a third portion of movement, the first operating member having a first operating end; an operating assembly including at least an elastic element operatively connected to a lever, the first operating member being disengaged from said operating assembly during the first portion of its movement and engaged with the lever during the second and third portions of its movement. During a closing operation of the circuit breaker the first operating member moves first along the first portion of movement driven by the operating shaft and disengaged from the operating assembly, then moves along the second portion of movement driven by the operating shaft and engaged with the lever and transmitting energy to the operating assembly; and finally moves along the third portion of movement driven by the lever and transmitting energy to the operating shaft.
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公开(公告)号：US10892128B2
公开(公告)日：2021-01-12
申请号：US16366181
申请日：2019-03-27
Applicant: ABB S.p.A.
Inventor： Wensheng Liu , Jiancheng Ren , Baiqin Liang
Abstract: The present application provides a residual-current protection device and a tripper. The residual-current protection device comprises: a flux transformer receiving a residual-current signal; a tripping output element outputting ON/OFF signals; an energy storage mechanism adapted to switch between an energy storage state and an energy release state, the energy storage mechanism having a locking unit that locks the energy storage mechanism in the energy storage state; and a transmission mechanism braked by the flux transformer, which drives the tripping output element to move and drives state of the energy storage mechanism to switch; the transmission mechanism comprising: a first rack cooperating with the locking unit, a second rack driving the tripping output element, and a reduction gear with a big gear engaged with the first rack and a small gear engaged with the second rack. By means of the gear rack transmission mechanism of the residual-current protection device, reduction transmission can be effected, driving force needed by energy storage may be reduced, and thus design requirements as high transmission efficiency, easy processing and assembly as well as low costs can be satisfied.
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