公开(公告)号：EP3330992A1

公开(公告)日：2018-06-06

申请号：EP16202187.7

申请日：2016-12-05

Applicant: ABB Schweiz AG

Inventor： Johansson, Erik ,  Zhang, Zichi ,  Valdermarsson, Stefan

IPC: H01H9/36 ,  H01H33/59

Abstract: The present disclosure relates to an electrical DC switching system (1) for extinguishing an electric arc, wherein the electrical DC switching system comprises: a contact arrangement (3) having a first contact (3a) and a second contact (3b), a current injection circuit (5) including a resonance circuit configured to be connected across the contact arrangement (3), and a first switch connected to the resonance circuit (6) and to the first contact (3a), wherein the first switch (S1) is configured to be switched between an open state and a closed state, wherein in the closed state the first switch is configured to enable an injection current to flow through the resonance circuit (6) in a first flow direction and into the contact arrangement (3) in a direction opposite to a flow direction of a contact arrangement arc current, and an arc chute assembly (7) comprising a plurality of splitter plates configured to extinguish an electric arc across the first contact (3a) and the second contact (3b), wherein each splitter plate of the plurality of splitter plates has a layered configuration comprising a magnetic layer and two non-magnetic layers.

公开(公告)号：EP3330992B1

公开(公告)日：2019-11-20

申请号：EP16202187.7

申请日：2016-12-05

Applicant: ABB Schweiz AG

Inventor： Johansson, Erik ,  Zhang, Zichi ,  Valdermarsson, Stefan

IPC: H01H9/36 ,  H01H33/59

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）。