Patent ID: 8227721

Claim:
A power line or power cable current interrupter including a vacuum switch chamber ( 6 ) having two switch contacts ( 12 , 13 ) arranged for relative movement between them and able to assume a closed position and an open position, which interrupter comprises: a movable disconnector ( 2 ) connected in the power line and adapted to assume a line-closed position ( 1 ) and a line-open position during a stroke of the movable disconnector's movement; and a branch ( 4 ) connected to the power line at a first end ( 8 ) of the branch, the vacuum switch chamber being connected in said branch, the branch including a movable part ( 7 ) disposed between the vacuum switch chamber and a second end ( 9 ) of the branch opposite to the branch's first end; and in that the disconnector ( 2 ) and the movable part are arranged in such a way that the disconnector touches said second end ( 9 ) during a portion of the stroke intermediate between the line-closed position and the line-open position, and in such a way that the movable part is arranged to have a first state in which the movable part is disengaged from the vacuum switch chamber and a second state in which the movable part actuates one of the switch contacts ( 13 ) of the vacuum switch chamber so as to produce the open position of the switch contacts, wherein said second end has an electrically conductive first face ( 22 ) that faces towards the power line ( 1 ), and an insulating second face, and in that the disconnector ( 2 ) is movable in alternate directions, and wherein said second end is connected to another portion of the movable part by means of a pivot ( 20 ) for movement in one direction, said pivot having an end stop and a return spring and being adapted to be moved and retracted when the alternately movable disconnector ( 2 ) is being moved in said stroke from the open position of the power line to the closed position of the power line.