| 摘要 |
FIELD: electricity.SUBSTANCE: invention is related to switching system (1) for relays or contactor switch, which is comprised of a contact bridge (5) placed between two contacts (4a, 4b) so that it can rotate around the axis (6). Besides, the switching system (1) comprises a magnet element (15) that generates magnetic filed (28) parallel to the rotation axis (6) of the contact bridge (5) in order to force out electric arc occurring at open contacts (4a, 4b) to arc-quenching chamber (16).EFFECT: improved efficiency of the switching system at voltage of 450 V and at passage and interruption of current of 250 A.12 cl, 5 dwg |
