Patent ID: 6777635
Filing Date: 2004-08-17
Classification: H01H

Abstract:
Electrical switchgear apparatus comprising:a first contact connected to a first terminal strip for connection to an electric power circuit; a cage movable between a closed position and an open position; a second contact electrically connected to a second terminal strip for connection to the electric power circuit, the second contact being movable with respect to the cage between a contact position and a separated position, the second contact being in contact with the first contact when the cage is in the closed position and the second contact is in the contact position, a drive mechanism of the apparatus movable between a closed position and an open position, comprising: an energy storage spring loaded when the drive mechanism is in the closed position and unloading when moving the drive mechanism from the closed position to the open position; an opening latch, locking the drive mechanism in the open position; an electromechanical relay for operation of the opening latch; a kinematic transmission system between the energy storage spring and the cage to drive the cage from the closed position to the open position when the drive mechanism moves from the closed position to the open position; comprising in addition:an electromechanical actuator comprising a movable assembly moving between a rest position and an active position and driving the second contact from the contact position to the separated position going from the rest position to the active position when the cage is in the closed position.