公开(公告)号：US09484168B2

公开(公告)日：2016-11-01

申请号：US14270681

申请日：2014-05-06

Applicant: ABB S.p.A.

Inventor： Davide Pessina ,  Romeo Bianchetti ,  Rudolf Gati ,  Thorsten Strassel

IPC: H01H33/04 ,  H01H9/54

CPC classification number: H01H33/04 ,  H01H9/542 ,  H01H2009/546

Abstract: Exemplary embodiments are directed to a direct current switching apparatus including at least a first mechanical switching device which is suitable to be positioned along an operating path of an associated DC circuit and includes a fixed contact and a corresponding movable contact which can be actuated between a closed position and an open position along the operating path, wherein an electric arc can ignite between the contacts under separation. The switching apparatus includes an electronic circuit having a semiconductor device which is suitable to be positioned along a secondary path and connected in parallel with the first mechanical switching device. The electronic circuit can be configured to commute the flow of current from the operating path to the secondary path and extinguish an electric arc ignited when the movable contact separates from the fixed contact when the first mechanical switching device fails to extinguish the same.

Abstract translation: 示例性实施例涉及直流开关装置，其包括至少第一机械开关装置，其适于沿着相关联的DC电路的操作路径定位，并且包括固定触点和相应的可动触点，所述触点可在闭合 位置和沿着操作路径的打开位置，其中电弧可以在分离的触点之间点燃。 开关装置包括具有半导体器件的电子电路，该半导体器件适于沿着次级路径定位并与第一机械开关器件并联连接。 电子电路可以被配置为在第一机械开关装置不能熄灭电动线路时将电流从操作路径切换到次路径，并且当可动触头与固定触点分离时熄灭点火的电弧。

公开(公告)号：US20140332500A1

公开(公告)日：2014-11-13

申请号：US14270681

申请日：2014-05-06

Applicant: ABB S.p.A.

Inventor： Davide Pessina ,  Romeo Bianchetti ,  Rudolf Gati ,  Thorsten Strassel

IPC: H01H33/04

CPC classification number: H01H33/04 ,  H01H9/542 ,  H01H2009/546

Abstract: Exemplary embodiments are directed to a direct current switching apparatus including at least a first mechanical switching device which is suitable to be positioned along an operating path of an associated DC circuit and includes a fixed contact and a corresponding movable contact which can be actuated between a closed position and an open position along the operating path, wherein an electric arc can ignite between the contacts under separation. The switching apparatus includes an electronic circuit having a semiconductor device which is suitable to be positioned along a secondary path and connected in parallel with the first mechanical switching device. The electronic circuit can be configured to commute the flow of current from the operating path to the secondary path and extinguish an electric arc ignited when the movable contact separates from the fixed contact when the first mechanical switching device fails to extinguish the same.

Abstract translation: 示例性实施例涉及直流开关装置，其包括至少第一机械开关装置，其适于沿着相关联的DC电路的操作路径定位，并且包括固定触点和相应的可动触点，所述触点可在闭合 位置和沿着操作路径的打开位置，其中电弧可以在分离的触点之间点燃。 开关装置包括具有半导体器件的电子电路，该半导体器件适于沿着次级路径定位并与第一机械开关器件并联连接。 电子电路可以被配置为在第一机械开关装置不能熄灭电动线路时将电流从操作路径切换到次路径，并且当可动触头与固定触点分离时熄灭点火的电弧。