FIELD: electricity.
SUBSTANCE: invention is related to direct current interrupting switchgear. Switchgear (1) for interruption of bidirectional direct current in the electric line (3) contains at least two connection leads (E1, S1) and even number (Np) of plug contact pairs (11, 12) for arch-quench chambers (14, 15) connected to certain pairs of plug contacts and tripping mechanisms connected to certain pairs of plug contacts and interconnected mechanically, at that each arch-quench chamber is equipped with arc blow chamber (43, 44) and permanent magnets (47, 48) with polarity allowing electric arc (52) shift in the arc blow chamber when current passes in the electric line in the target direction, at that the target direction is different for one half of arch-quench chambers.
EFFECT: optimising operation in compliance with voltage at terminals and reducing bulkiness.
18 cl, 11 dwg
