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    VERFAHREN ZUM EINSCHALTEN EINES RELAIS ZUM BEWIRKEN EINES MINIMALEN EINSCHALTSTROMS
    2.
    发明公开
    VERFAHREN ZUM EINSCHALTEN EINES RELAIS ZUM BEWIRKEN EINES MINIMALEN EINSCHALTSTROMS 审中-公开

    公开(公告)号：EP4333010A1

    公开(公告)日：2024-03-06

    申请号：EP23170049.3

    申请日：2023-04-26

    申请人： Insta GmbH

    发明人： Hopp, Christian ,  Wüller, Stefan

    IPC分类号： H01H9/56 ,  H01H47/18

    摘要： Ein Verfahren zum Einschalten eines eine wechselstromgespeiste Last schaltenden Relais zum Bewirken eines minimalen Einschaltstroms I min durch das Relais wobei das Verfahren folgende Schritte umfasst:
    - Überwachen der Netzspannung zum Ermitteln eines festen Synchronisationspunktes t sync an der Netzfrequenz und
    - Erfassen des Einschaltstromes I durch die Relaiskontakte mit Hilfe eines Magnetfeldsensors, der das Magnetfeld erfasst, welches durch den Einschaltvorgang erzeugt wird, für unterschiedliche Zeitabstände t Delta zwischen dem Zeitpunkt t ein seiner Einschaltansteuerung und dem Zeitpunkt des Synchronisationspunktes t sync über mindestens eine Halbwelle,
    - Identifizieren des Zeitpunktes t ein2 korrespondierend zu dem minimalen Einschaltstrom I min ,
    - Ansteuern des Relais zum Zeitpunkt t ein2 , so dass das Schließen der Relaiskontakte einen minimalen Einschaltstrom I min bewirkt.

    SYSTEMS AND METHODS FOR PROVIDING OPEN ARC ENERGY NORMALIZATION
    6.
    发明公开
    SYSTEMS AND METHODS FOR PROVIDING OPEN ARC ENERGY NORMALIZATION 审中-公开

    公开(公告)号：EP4160643A3

    公开(公告)日：2023-07-05

    申请号：EP22198347.1

    申请日：2022-09-28

    申请人： Rockwell Automation Technologies, Inc.

    发明人： Adkins, Kyle B. ,  Carlson, Andrew E. ,  Elmiger, David

    IPC分类号： H01H9/56 ,  H01H47/20 ,  H01H47/00 ,  H01H9/16

    摘要： A method may include receiving a command to move one or more armatures configured to move between a first position that electrically couples one or more first movable contacts to one or more second contacts and a second position that electrically uncouples the one or more first movable contacts from the one or more second contacts. The method may also include determining an operating frequency of the system, dynamically determining an open-before-zero target point associated with the operating frequency, and transmitting a command to the switching device to move the one or more armatures from the first position to the second position at the open-before-zero target point to normalize the arc energy over the operating frequency range.

    ELECTRICAL SWITCH
    8.
    发明公开
    ELECTRICAL SWITCH 审中-公开

    公开(公告)号：EP4099355A1

    公开(公告)日：2022-12-07

    申请号：EP21177117.5

    申请日：2021-06-01

    申请人： ABB Schweiz AG

    发明人： Strand, Fredrik

    IPC分类号： H01H9/56

    摘要： An electrical switch comprising a neutral contact adjustment system (610) adapted for adjusting a position of a neutral contact opening surface (631) relative to at least one phase contact opening surface (632) such that the neutral contact adjustment system (610) has a first operating state which is adapted to provide a simultaneous break operation in which a movable neutral contact (131) disconnects simultaneously with at least one movable phase contact (132) during an opening event, and a second operating state which is adapted to provide a late-break operation in which the movable neutral contact (131) disconnects later than the at least one movable phase contact (132) during the opening event.

    EXTENDING THE LIFE OF ELECTROMAGNETIC BRAKE CONTROL CIRCUITS
    9.
    发明公开
    EXTENDING THE LIFE OF ELECTROMAGNETIC BRAKE CONTROL CIRCUITS 审中-公开

    公开(公告)号：EP3855466A1

    公开(公告)日：2021-07-28

    申请号：EP20217837.2

    申请日：2020-12-30

    申请人： Rockwell Automation Technologies, Inc.

    发明人： CAMPBELL, Alan J. ,  STRANDT, Timothy J.

    IPC分类号： H01H9/54 ,  B60T13/58 ,  H01H9/56 ,  H01H50/00

    摘要： A method may include receiving, via a processor, a request to enable movement of a rotor. The method may involve sending a first signal to a mechanical relay system in response to receiving the request, such that the second signal may cause a mechanical relay to close. The mechanical relay system is configured to couple a first conductor to an EM brake. The method may also include sending a second signal to a solid-state relay system after sending the first signal to the mechanical relay system, such that the second signal may cause a solid-state relay to close. The solid-state relay system may couple a second conductor to the EM brake, such that the EM brake may open after receiving power via the first conductor and the second conductor.