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    LOW VOLTAGE ELECTRICAL CONTACT SYSTEM WITH ENHANCED ARC BLOW EFFECT
    2.
    发明申请
    LOW VOLTAGE ELECTRICAL CONTACT SYSTEM WITH ENHANCED ARC BLOW EFFECT 审中-公开

    公开(公告)号：US20180277315A1

    公开(公告)日：2018-09-27

    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 ,  H01H9/38 ,  H01H9/40 ,  H01H1/50 ,  H01H11/04

    CPC classification number: H01H1/06 ,  H01H1/50 ,  H01H9/30 ,  H01H9/38 ,  H01H9/40 ,  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).

    Low voltage electrical contact system with enhanced arc blow effect
    5.
    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).

    LOW VOLTAGE CIRCUIT BREAKER
    8.
    发明申请
    LOW VOLTAGE CIRCUIT BREAKER 审中-公开

    公开(公告)号：US20180286620A1

    公开(公告)日：2018-10-04

    申请号：US15937011

    申请日：2018-03-27

    Applicant: ABB Schweiz AG

    Inventor： Thomas Schmoelzer ,  Markus Hoidis ,  Enrico Dell Oro ,  Chiara Cantini ,  Antonello Antoniazzi ,  Reinhard Simon

    IPC: H01H71/66 ,  H01H3/22 ,  H01H1/021 ,  H01H73/04 ,  H01H71/02

    Abstract: A low voltage circuit breaker is provided. The low voltage circuit breaker includes a contact system with a first contact and a second contact that are electrically connectable and disconnectable relative to one another. The first contact includes a body having a first layer and a second layer, wherein the first layer is arranged on the second layer and is configured to come in contact with the second contact for providing the electrical connection with the second contact. The first layer has a first material composition having an Ag content that is higher than an Ag content of a second material composition of the second layer. Further, the first material composition has a WC content that is lower than a WC content of the second material composition.

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