APPARATUS TO SWITCH A LED
    1.
    发明公开

    公开(公告)号:EP3594980A1

    公开(公告)日:2020-01-15

    申请号:EP19182615.5

    申请日:2019-06-26

    Applicant: ABB Schweiz AG

    Abstract: An apparatus (1, 1a-c, 1a'-c' ) to switch a light-emitting diode (2) or another load, comprising a mechanical switch (3), which comprises a moving electrode (4), wherein the moving electrode (4) is a contact, which electrically gets in connection with a further contact or electrode to enable a current flow while a closing phase and while an operation time and which moving electrode (4) can be separated from the further contact or electrode to interrupt current flow while a breaking phase of the mechanical switch (3), characterized in that the apparatus (1, 1a-c, 1a'-c' ) comprises a solid-state-device (5), which is arranged in such a manner that current at least partially flows through the solid-state-device (5) while a closing or breaking phase and that current at least partially flows through the mechanical switch (3) in closed position while the operation time, achieves the object to drastically limit the arcing duration during the inrush current phase or switching on phase as well as during the breaking current phase or even to avoid any arcing.

    A HYBRID SWITCHING APPARATUS FOR ELECTRIC GRIDS

    公开(公告)号:EP4016575A1

    公开(公告)日:2022-06-22

    申请号:EP20214064.6

    申请日:2020-12-15

    Applicant: ABB Schweiz AG

    Abstract: A switching apparatus for an electric grid comprising:
    - first and second electric terminals for electrical connection with corresponding grid portions;
    - a first electric branch comprising one or more switching devices of electromechanical type, each of which has electric contacts that are mechanically coupled or separated to conduct or block a current, respectively;
    - a second electric branch comprising a plurality of switching devices of the solid-state type, each of which includes one or more switching components based on semiconductor materials. Each solid-state switching device is adapted to switch between an on-state, at which said switching device conducts a current, and an off-state, at which said switching device blocks a current.
    The above-mentioned second electric branch is electrically connected in parallel with said first electric branch between said first and second electric terminals.
    The switching apparatus comprises a current blocking circuit adapted to block a current flowing along said second electric branch. Said current blocking circuit includes a first switching device of solid-state type and a first electronic circuit electrically connected in parallel to said first switching device of solid-state type.
    The switching apparatus further comprises a current limiting circuit adapted to limit a current flowing along said second electric branch. Said current limiting circuit is electrically connected in series with said current blocking circuit and it includes a second switching device of solid-state type and a second electronic circuit electrically connected in parallel to said second switching device of solid-state type.

    A HYBRID SWITCHING APPARATUS FOR ELECTRIC GRIDS

    公开(公告)号:EP4016574A1

    公开(公告)日:2022-06-22

    申请号:EP20214048.9

    申请日:2020-12-15

    Applicant: ABB Schweiz AG

    Abstract: A switching apparatus for an electric grid comprising:
    - first and second electric terminals for electrical connection with corresponding grid portions;
    - a first electric branch comprising a plurality of switching devices having electric contacts that can be mechanically coupled or separated to conduct or block a current, respectively;
    - a second electric branch comprising one or more switching devices of solid-state type including one or more switching components based on semiconductor materials, each switching device being adapted to switch between an on-state, at which said switching device conducts a current, and an off-state, at which said switching device blocks a current, said second electric branch being electrically connected in parallel with said first electric branch between said first and second electric terminals;
    The first electric branch comprises:
    - a first switching device capable of switching between a closed state, at which said first switching device conducts a current, and an open state, at which said first switching device blocks a current, said first switching device switching from said closed state to said open state upon being driven by a current flowing along said first switching device and without receiving an external control signal or an external power supply, said first switching device switching from said closed state to said open state, when the current flowing along said switching apparatus exceeds a corresponding predefined threshold value or when the changing rate of the current flowing along said switching apparatus exceeds a corresponding predefined threshold value or upon a combination of these two conditions;
    - a second switching device electrically connected in series with said first switching device and capable of switching between a closed state, at which said second switching device conducts a current, and an open state, at which said second switching device blocks a current, said second switching device switching between said closed state and said open state, upon receiving a corresponding input control signal.

    APPARATUS TO SWITCH A LED
    5.
    发明公开

    公开(公告)号:EP3594978A1

    公开(公告)日:2020-01-15

    申请号:EP18182430.1

    申请日:2018-07-09

    Applicant: ABB Schweiz AG

    Abstract: An apparatus (1, 1a, 1b) to switch a light emitting diode (LED) or another load, comprising a mechanical switch (2, 2a, 2b), which comprises a moving electrode (3), wherein the moving electrode (3) is a contact, which electrically gets in connection with a further contact or electrode (4) to enable a current flow while a closing phase, characterized in that the apparatus (1, 1a, 1b) comprises a body (5, 5a, 5b) which absorbs or dissipates the kinetic energy and/ or the momentum which is exerted from the moving electrode (3) on the further contact or electrode (4), achieves the object to prevent bounces of electrodes, especially to prevent bounces of a moving electrode of a mechanical switch.

    APPARATUS TO SWITCH A LED
    6.
    发明公开

    公开(公告)号:EP3594979A1

    公开(公告)日:2020-01-15

    申请号:EP18182431.9

    申请日:2018-07-09

    Applicant: ABB Schweiz AG

    Abstract: An apparatus (1, 1a-c) to switch a light-emitting diode (2) or another load, comprising a mechanical switch (3), which comprises a moving electrode (4), wherein the moving electrode (4) is a contact, which electrically gets in connection with a further contact or electrode to enable a current flow while a closing phase and while an operation time and which moving electrode (4) can be separated from the further contact or electrode to interrupt current flow while a breaking phase of the mechanical switch (3), characterized in that the apparatus (1, 1a-c) comprises a solid-state-device (5), which is arranged in such a manner that current at least partially flows through the solid-state-device (5) while a closing or breaking phase and that current at least partially flows through the mechanical switch (3) in closed position while the operation time, achieves the object to drastically limit the arcing duration during the inrush current phase or switching on phase as well as during the breaking current phase or even to avoid any arcing.

    APPARATUS TO SWITCH A LED
    7.
    发明公开

    公开(公告)号:EP3594977A1

    公开(公告)日:2020-01-15

    申请号:EP18182429.3

    申请日:2018-07-09

    Applicant: ABB Schweiz AG

    Abstract: An apparatus (1, 1a, 1b) to switch a light emitting diode (LED) or another load, comprising a mechanical switch (2), which comprises a moving electrode (3), wherein the moving electrode (3) is a contact, which electrically gets in connection with a further contact or electrode (4) to enable a current flow while a closing phase, characterized in that the apparatus (1, 1a, 1b) comprises a body (5, 5a, 5b) which absorbs or dissipates the kinetic energy of the moving electrode (3), achieves the object to prevent bounces or arcs of electrodes, especially to prevent bounces or arcs of a moving electrode of a mechanical switch.

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