公开(公告)号：EP3144946A1

公开(公告)日：2017-03-22

申请号：EP15185869.3

申请日：2015-09-18

Applicant: ABB Schweiz AG

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

IPC: H01H1/06 ,  H01H9/30

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

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).

Abstract translation: 电接触系统，具有第一和第二接触件（5,5），每个具有接触表面（4,8）。 第一电触点（1）具有介质结构的电接触部分（14），多个槽（15）和脊（16）形成在多个槽（16）的相邻槽（16）之间。 这些槽（15）和脊（16）在横向于所述开关平面（X-Z）的方向上延伸形成多个电流路径（16）。 电流路径（16）以测量小于60度的第一角度（17）倾斜到第一接触表面（4），使得流过介电结构的电接触部分（14）并通过电 在将第一接触表面（4）从第二接触表面（8）提升之后，在第一接触表面（4）之间延伸的弧（11）将所述电弧（11）沿所述第一角度（17）的顶点的方向 ）从第一位置（18）到第二位置（19）。

公开(公告)号：EP3382730B1

公开(公告)日：2020-03-04

申请号：EP18161778.8

申请日：2018-03-14

Applicant: ABB Schweiz AG

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

IPC: H01H1/0233

公开(公告)号：EP3382730A1

公开(公告)日：2018-10-03

申请号：EP18161778.8

申请日：2018-03-14

Applicant: ABB Schweiz AG

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

IPC: H01H1/0233

Abstract: A low voltage circuit breaker (100) is provided. The low voltage circuit breaker (100) includes a contact system (110) with a first contact (112) and a second contact (114) that are electrically connectable and disconnectable relative to one another. The first contact (112) includes a body (b) having a first layer (11) and a second layer (12), wherein the first layer (11) is arranged on the second layer (12) and is configured to come in contact with the second contact (114) for providing the electrical connection with the second contact (114). The first layer (11) 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 (12). Further, the first material composition has a WC content that is lower than a WC content of the second material composition.