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公开(公告)号：US20230420932A1
公开(公告)日：2023-12-28
申请号：US18337784
申请日：2023-06-20
Applicant: ABB Schweiz AG
Inventor： Elisabeth Lindell , Johan Nohlert , Andrea Bianco , Stefan Halén , Jesper Magnusson
Abstract: A method of operating a switching device in a system. The method includes monitoring a voltage; operating the system at each of a plurality of system configurations; and, for each of the system configurations and a predetermined same opening angle relative to a reference angle of the monitored voltage, determining a suitable closing angle relative to the reference angle and storing information about the determined suitable closing angle in association with the system configuration in a database. The method then includes, determining a system configuration in the system; at the predetermined same opening angle, opening the switching device; from the database, obtaining a closing angle of the determined suitable closing angles, wherein the system configuration with which the obtained closing angle is associated in the database corresponds to the determined system configuration; and at the obtained closing angle, closing the switching device.
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公开(公告)号：US11075036B2
公开(公告)日：2021-07-27
申请号：US16641547
申请日：2018-06-20
Applicant: ABB Schweiz AG
Inventor： Elisabeth Lindell , Andrea Bianco , Andrea Ricci , Lars Jonsson , Stefan Halén , Lars Liljestrand
Abstract: The present invention relates to a method for controlling a motor-driven vacuum circuit breaker. The method comprises initiate opening (S100) the circuit breaker, wherein the circuit breaker moves with an average opening speed of a contact pair of the circuit breaker, from a closed position to an open position of the circuit breaker, and decelerating (S110) the opening speed of the contact pair to below the average opening speed before the open position is reached to avoid overshoot, and initiate closing (S120) the circuit breaker, wherein the circuit breaker moves with an average closing speed of the contact pair, from the open position to the closed position, and decelerating (S130) the closing speed of the contact pair to below the average closing speed before contact touch at the closed position, wherein the circuit breaker moves with the decelerated speed at contact touch. A motor-driven vacuum circuit breaker, a computer program and a computer program product are also presented.
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公开(公告)号：US09824800B2
公开(公告)日：2017-11-21
申请号：US14945918
申请日：2015-11-19
Applicant: ABB Schweiz AG
Inventor： Bernhard Doser , Peter Dubach , Felix Greuter , Elisabeth Lindell , Lars Liljestrand
Abstract: A multi-terminal surge arrester which includes an active part extending along a longitudinal direction of the surge arrester, a first electrode resting against a first end of the active part, and a second electrode resting against a second end of the active part, which second end opposes the first end in the longitudinal direction of the surge arrester. The surge arrester further includes an insulating fixing device mechanically connecting and fixing the first electrode and the second electrode, and an insulating housing arranged around the active part. The active part includes at least two metal-oxide based varistor elements and a further electrode arranged between the at least two varistor elements, which further electrode provides an externally accessible electrical connection. Therein, the surge arrester is adapted for being insulated by surrounding air.
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公开(公告)号：US20240213764A1
公开(公告)日：2024-06-27
申请号：US18534998
申请日：2023-12-11
Applicant: ABB Schweiz AG
Inventor： Elisabeth Lindell , Andrea Bianco , Stefan Halén , Carlo Taborelli
IPC: H02H7/16
CPC classification number: H02H7/16
Abstract: A method for reducing inrush current to an ungrounded capacitor bank when re-closing a switching device. The method includes opening the switching device, including breaking the current of a first phase of the three phases, and after a predetermined opening time period simultaneously breaking the currents of a second phase and a third phase of the three phases. The method also includes re-closing the switching device, including simultaneously making the respective currents of the second and third phases, and after a predetermined closing time period making the current of the first phase.
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公开(公告)号：US20200328039A1
公开(公告)日：2020-10-15
申请号：US16803165
申请日：2020-02-27
Applicant: ABB Schweiz AG
Inventor： Magnus Backman , Elisabeth Lindell , Andrea Bianco
Abstract: A method for synchronizing opening of a circuit breaker is presented. The circuit breaker is arranged to interrupt a current to an inductive load. The method is performed in a control device (2) and comprises measuring (S100) a reference signal as a function of time for a circuit breaker (1) connected to an inductive load (5), obtaining (S110) an indication of a power factor of the inductive load through the circuit breaker, determining (S120) an arcing time for opening of the circuit breaker, the arcing time being dependent on the obtained indication of a power factor, predicting (S130) a zero crossing of a current through the circuit breaker based on the measured reference signal, and providing (S140) contact separation of a contact pair of the circuit breaker at a point of time before the predicted zero crossing, the point of time being determined by the determined arcing time and the predicted zero crossing. A control device, a circuit breaker arrangement, and a computer program for synchronizing opening of a circuit breaker are also presented.
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Patent Agency Ranking
6.发明公开公开(公告)号：US20240329606A1
公开(公告)日：2024-10-03
申请号：US18588555
申请日：2024-02-27
Applicant: ABB Schweiz AG
Inventor： Elisabeth Lindell , Stefan Halen
IPC: G05B11/36
CPC classification number: G05B11/36
Abstract: A method of performing a circuit opening and closing operation in a power system having a first phase, a second phase), and a third phase, the method including a) opening only a reference phase among the first phase, the second phase and the third phase such that a reference current of the reference phase is interrupted at a first current zero crossing after the opening; b) opening the remaining phases after step a); c) closing only the reference phase and a phase lagging the reference phase by 120° simultaneously or essentially simultaneously at a closing phase angle of a phase to ground voltage of the reference phase of 320°±70° when the current zero crossing is a positive current zero crossing, or of 140°±70° when the current zero crossing is a negative current zero crossing; and d) closing the phase lagging the reference phase by 240° after step c).
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公开(公告)号：US20230197381A1
公开(公告)日：2023-06-22
申请号：US18064567
申请日：2022-12-12
Applicant: ABB Schweiz AG
Inventor： James Mannekutla , Elisabeth Lindell , Ola Jeppsson
IPC: H01H39/00
CPC classification number: H01H39/004
Abstract: An arc quenching device for a three-phase electrical switchgear. The device includes a first busbar, a second busbar and a third busbar, each of a respective phase of the three-phase switchgear. The device also includes at least one piston of an electrically conductive material and having a tapered shape, tapering towards its front end. The device also includes only one pyrotechnical actuator arranged to, when the pyrotechnical actuator is fired, axially move each of the at least one piston until all of the first, second and third busbars are short-circuited to each other via the at least one piston.
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公开(公告)号：US20200312592A1
公开(公告)日：2020-10-01
申请号：US16826141
申请日：2020-03-20
Applicant: ABB Schweiz AG
Inventor： Elisabeth Lindell , Stefan Halén , Lars Jonsson
Abstract: A method of performing a circuit-breaking and closing operation in a three-phase system having a first phase, a second phase lagging the first phase by 120°, and a third phase lagging the first phase by 240°, includes: a) opening only one of the first phase, the second phase and the third phase before a zero crossing of a current of the corresponding phase, b) opening the remaining phases of the first phase, the second phase and the third phase after step a), and c) closing the first phase, the second phase and the third phase simultaneously or essentially simultaneously at a phase to ground voltage of the phase of the first phase, the second phase and the third phase which lagging the phase that was opened in step a) by 120° in a time range from 60° before a peak of the phase to 90° after the peak.
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公开(公告)号：US10242826B2
公开(公告)日：2019-03-26
申请号：US15747832
申请日：2016-06-17
Applicant: ABB Schweiz AG
Inventor： Elisabeth Lindell , Lars Liljestrand , Stefan Halén
Abstract: An electric power distribution switchgear is connected between an electric power grid and an electric power equipment. The switchgear includes a synchronized vacuum switching apparatus configured to break the current to the electric power equipment using a synchronized technique to avoid re-ignition during the breaking and thus any transients caused by such re-ignition; and a surge arrester arrangement connected to the electric power equipment, the surge arrester arrangement being designed and configured to only handle transients caused by the current chopping at the breaking. The surge arrester arrangement can be arranged remote from the electric power equipment, such as e.g. in the same casing as the synchronized vacuum switching apparatus.
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公开(公告)号：US12170180B2
公开(公告)日：2024-12-17
申请号：US18064567
申请日：2022-12-12
Applicant: ABB Schweiz AG
Inventor： James Mannekutla , Elisabeth Lindell , Ola Jeppsson
IPC: H01H39/00
Abstract: An arc quenching device for a three-phase electrical switchgear. The device includes a first busbar, a second busbar and a third busbar, each of a respective phase of the three-phase switchgear. The device also includes at least one piston of an electrically conductive material and having a tapered shape, tapering towards its front end. The device also includes only one pyrotechnical actuator arranged to, when the pyrotechnical actuator is fired, axially move each of the at least one piston until all of the first, second and third busbars are short-circuited to each other via the at least one piston.
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