| 摘要 |
The invention relates, amongst other things, to a DC switching device (10) for switching direct currents (I), in particular direct currents in the kiloampere range, having an electrical series circuit (R) which comprises a first and a second switch (20, 30), wherein the first switch (20) is a mechanical switch and has a moving contact system for switching purposes, and having a semiconductor power switch (40) which is connected in parallel with the series circuit (R). According to the invention, provision is made for the second switch (30) of the series circuit (R) to likewise be a mechanical switch and to likewise have a moving contact system for switching purposes, and for the moving contact system of the second switch (30) to be designed in such a way that it can switch more rapidly than the moving contact system of the first switch (20). |
