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    CONTACTOR MONITORING
    1.
    发明公开
    CONTACTOR MONITORING 审中-公开

    公开(公告)号：US20230197367A1

    公开(公告)日：2023-06-22

    申请号：US18063833

    申请日：2022-12-09

    Applicant: ABB Schweiz AG

    Inventor： Gunnar Johansson

    IPC: H01H3/28 ,  H01H3/38 ,  H01H1/00

    CPC classification number: H01H3/28 ,  H01H3/38 ,  H01H1/0015 ,  H01H2071/044

    Abstract: A method of monitoring a contact force between electrical contacts in a mechanical contactor. The method includes receiving, from a force sensor, a signal including information about a base force sensed by the force sensor between a stationary core and a base; determining a magnitude of the contact force based on the received information; and outputting information based on the determined magnitude to an operator.

    Contactor control
    2.
    发明授权
    Contactor control 有权

    公开(公告)号：US11887795B2

    公开(公告)日：2024-01-30

    申请号：US18044591

    申请日：2021-08-06

    Applicant: ABB Schweiz AG

    Inventor： Gunnar Johansson

    IPC: H01H47/00 ,  H01H47/22

    CPC classification number: H01H47/002 ,  H01H47/22

    Abstract: A method of controlling a mechanical contactor including at least one pair of contacts for conducting a mains current (Im) when the contactor is in a closed position, and an electromagnet arranged to close the contactor, and maintain the contactor in the closed position, by forcing the pair of contacts towards each other when a control current (Ic) runs through a coil of the electromagnet. The method includes, while the contactor is in the closed position, obtaining an indication of unintentional separation of the contacts, and in response to the obtained indication, opening the contactor and maintaining the contactor in an open position by turning off the control current.

    Method for controlling a contactor device, and control unit
    5.
    发明授权
    Method for controlling a contactor device, and control unit 有权
    用于控制接触器装置和控制单元的方法

    公开(公告)号：US09589753B2

    公开(公告)日：2017-03-07

    申请号：US15033368

    申请日：2013-11-12

    Applicant: ABB Schweiz AG

    Inventor： Björn Lundén ,  Gunnar Johansson ,  Lars Andersson

    IPC: H01H47/00 ,  H01H47/04 ,  G01R19/25 ,  H01H47/32

    CPC classification number: H01H47/04 ,  G01R19/2506 ,  H01H47/32 ,  H01H47/325

    Abstract: A method in a control unit for closing a contactor device. The control unit is configured to enable the movement between the closed and opened position by energizing a coil of an electromagnetic circuit. The method includes applying a voltage over the coil; determining, during a first period of time, current through the coil and voltage over the coil and estimating based thereon model parameters for a model predicting the behavior of the current through the coil if the contactor device were to stay in an open position, and measuring, after the ending of the first period of time, current through the coil and determining a difference between, on the one hand the measured current and, on the other hand a predicted current of the model, and repeating the measuring and determining until a state change from open position to closed position is detected by the difference in current.

    Abstract translation: 用于关闭接触器装置的控制单元中的方法。 控制单元构造成通过对电磁线圈的线圈通电来实现闭合位置和打开位置之间的移动。 该方法包括在线圈上施加电压; 在第一时间段期间确定通过线圈的电流和线圈上的电压，并且基于模型估计模型参数，用于模型预测如果接触器装置保持在打开位置时通过线圈的电流的行为，并且测量 在第一时间段结束之后，电流通过线圈并确定一方面测量的电流之间的差异，另一方面确定模型的预测电流，并重复测量并确定直到状态 通过电流差来检测从打开位置到关闭位置的变化。

    SWITCHING DEVICE
    6.
    发明申请
    SWITCHING DEVICE 有权

    公开(公告)号：US20230123517A1

    公开(公告)日：2023-04-20

    申请号：US17905517

    申请日：2021-02-04

    Applicant: ABB Schweiz AG

    Inventor： Gunnar Johansson ,  Lisa Almén

    IPC: H01H33/18

    Abstract: An electromechanical switching device for breaking an electric current, the switching device including a stationary main contact; a movable main contact; a stationary arcing contact; a movable arcing contact, the stationary arcing contact and the movable arcing contact being arranged in parallel with the stationary main contact and the movable main contact; an actuating arrangement configured to move the movable main contact and the movable arcing contact; and a magnetic member arranged to generate a magnetic holding force in response to an electric current flow through the movable arcing contact when the movable arcing contact is in the closed position, the magnetic holding force acting on the movable arcing contact in a direction against the stationary arcing contact.

    Low voltage electrical contact system with enhanced arc blow effect
    9.
    发明授权
    Low voltage electrical contact system with enhanced arc blow effect 有权

    公开(公告)号：US10269508B2

    公开(公告)日：2019-04-23

    申请号：US15924728

    申请日：2018-03-19

    Applicant: ABB Schweiz AG

    Inventor： Reinhard Simon ,  Erik Johansson ,  Göran Eriksson ,  Moritz Boehm ,  Gunnar Johansson

    IPC: H01H1/06 ,  H01H9/30 ,  H01H9/38 ,  H01H9/40 ,  H01H1/50 ,  H01H11/04

    Abstract: Electrical contact system with a first and a second contact (1, 5), each having a contact surface (4, 8). The first electric contact (1) has a mesostructured electric contact portion (14) with a plurality of slots (15) and ridges (16) formed between neighboring slots (16) of the plurality of slots (16). These slots (15) and ridges (16) extend in a direction running transversely to said switching plane (X-Z) form a plurality of current paths (16). The current paths (16) are inclined to the first contact surface (4) at a first angle (17) measuring less than 60 degrees such that an interruption current (12) flowing through the mesostructured electric contact portion (14) and through an electric arc (11) extending in between the first contact surface (4) after lifting the first contact surface (4) off the second contact surface (8) pushes said electric arc (11) in the direction of the apex of said first angle (17) from a first position (18) to a second position (19).

    Switching Device
    10.
    发明申请
    Switching Device 审中-公开

    公开(公告)号：US20190066939A1

    公开(公告)日：2019-02-28

    申请号：US15767059

    申请日：2015-10-08

    Applicant: ABB Schweiz AG

    Inventor： Gunnar Johansson ,  David Karlén ,  Jonathan Jonsson ,  Markus Angell ,  Mats Henning Johansson

    IPC: H01H3/40 ,  H01H9/38 ,  H01H9/34

    CPC classification number: H01H3/40 ,  H01H1/20 ,  H01H1/2025 ,  H01H1/2041 ,  H01H9/34 ,  H01H9/346 ,  H01H9/38 ,  H01H9/383 ,  H01H2201/024 ,  H01H2201/026 ,  H01H2225/004

    Abstract: A switching device for breaking an electric current including a main contact carrier, movable and stationary main contacts, the movable contact attached to the main contact carrier, an arcing contact carrier, a movable and stationary arcing contacts, the movable arcing contact attached to the arcing contact carrier and the stationary arcing contact arranged in parallel with the stationary main contact, and an actuating unit for the main and arcing contact carriers between open and close position at an actuating distance, wherein there are separation distances between the stationary and movable contacts of the main and arcing contact units respectively when the current is interrupted. The switching device further includes a first rack and a first gear for actuating the arcing contact carrier so that, when interrupting the current, a separation distance between the arcing contacts is longer than a separation distance between the main contacts.

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