| 摘要 |
The invention relates to a disconnecting apparatus (1) for direct current interruption between a direct current source (2) and an electrical device (3), in particular between a photovoltaic generator and an inverter, with a current-conducting mechanical switching contact (7a, 7b) and with semiconductor electronics (8) connected in parallel with the switching contact (7a, 7b). The semiconductor electronics (8) are non-conducting when the switching contact (7a, 7b) is closed, wherein a control input (15) of the semiconductor electronics (8) is wired with the switching contact (7a, 7b) in such a way that, when the switching contact (7a, 7b) opens, an arc voltage (ULB)generated as a result of an arc (LB) via the switching contact (7a, 7b) switches the semiconductor electronics (8) to be conducting.
|
