Switchgear operating apparatuses

An operating apparatus for a switchgear comprising:

• an on-off switch driver including a rotatably mounted energizing lever linked to an on-off switch of the switchgear and an energy-storing device linked to the energizing lever;
• a retaining device including a locking lever;
• and
• an energizing mechanism including a cam turned by an electric motor in a specific direction, a current interrupter and a braking device;
• wherein the cam of said energizing mechanism turning in said specific direction begins to maintain contact with the energizing lever at a first angular position, turns the energizing lever in an energizing direction to energize the energy-storing device, causes the locking lever of said retaining device to lock the energizing lever such that the energizing lever remains in the energized condition without turning opposite to the energizing direction, and becomes separated from the energizing lever by further turning in said specific direction, the current interrupter is actuated and interrupts an electric current supplied to the electric motor when the cam reaches a second angular position after turning by a first specific angle from the first angular position, and the braking device brakes the cam when the cam reaches a third angular position after turning by a second specific angle from the second angular position due to inertial turning of the electric motor, whereby the cam stops within a specific angular range of rotation.