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公开(公告)号：US20240079191A1
公开(公告)日：2024-03-07
申请号：US18455430
申请日：2023-08-24
Applicant: ABB S.p.A.
Inventor： Pierantonio Arrighetti , Michele Ceroni
Abstract: A switch pole for a low voltage switching device including an insulating casing defining an internal space with a contact region and an arc extinguishing region of said switch pole, a fixed contact assembly and a movable contact assembly positioned in said contact region 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 region 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 a cover of electrically insulating material coating, at least partially, a surface of said plate portion.
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公开(公告)号：US11804345B2
公开(公告)日：2023-10-31
申请号：US17049071
申请日：2019-04-19
Applicant: ABB S.p.A.
Inventor： Pierantonio Arrighetti , Marco Bonfanti
Abstract: A low-voltage circuit breaker includes at least one fixed contact, for each pole, which is electrically connected to a terminal for connection to an electric circuit, and a corresponding moving contact which is associable/separable with respect to the fixed contact by a rotation of the moving contact. The low-voltage circuit breaker further includes an arc chamber positioned in correspondence of the fixed contact, and a rotating contact supporting shaft common to all poles, which is functionally connected to an actuation mechanism of the circuit breaker, where the actuation mechanism includes a kinematic system operatively connected to an actuation lever for opening/closing operations and provided with opening springs and a tripping shaft for releasing the kinematic system and allowing its movement from a closed to an open position. The low-voltage circuit breaker further includes, for each pole, a quick acting trip device.
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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：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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