SWITCH DEVICE Russian patent published in 2009 - IPC H01H71/46 

FIELD: electric engineering.

SUBSTANCE: switch device (3) guarantees time delayed disconnection of switching station by simple means (4). For this purpose movable contact bracket (14) in closed position should be aligned with current lead (12), which is in conducting joint with fixed contact bracket (10). Current lead (12) has the same direction of current as movable contact bracket (14) so that force impact of energy accumulator drive (F3) influencing on movable contact bracket (14) is reduced by impact of electromagnetic retention force (F4) stipulated by electric current, thus making time delayed transfer into open position.

EFFECT: guarantees time delayed disconnection of switching station by simple means.

13 cl, 9 dwg