A switch includes: a tank; a fixed contact and a reciprocally movable contact provided inside the tank; an opening/closing shaft that rotates to thereby move the movable contact; a jack base fixed to the outer side of the tank; a torsion bar that stores a force to rotate the opening/closing shaft so as to move the movable contact in a direction away from the fixed contact; and an opening/closing lever detachably attached to the opening/closing shaft. The jack base has a first penetrating portion formed therethrough and facing the opening/closing lever. The opening/closing lever has a second penetrating portion formed therethrough and facing the jack base. The switch further includes: a bolt inserted through the first penetrating portion and the second penetrating portion; and a nut attached to a portion of the bolt, the portion of the bolt extending out of the first penetrating portion and the second penetrating portion.

A switch includes: a tank; a fixed contact and a reciprocally movable contact provided inside the tank; an opening/closing shaft that rotates to thereby move the movable contact; a jack base fixed to the outer side of the tank; a torsion bar that stores a force to rotate the opening/closing shaft so as to move the movable contact in a direction away from the fixed contact; and an opening/closing lever detachably attached to the opening/closing shaft. The jack base has a first penetrating portion formed therethrough and facing the opening/closing lever. The opening/closing lever has a second penetrating portion formed therethrough and facing the jack base. The switch further includes: a bolt inserted through the first penetrating portion and the second penetrating portion; and a nut attached to a portion of the bolt, the portion of the bolt extending out of the first penetrating portion and the second penetrating portion.

A switching device having a pole assembly, a drive unit, and a kinematic linkage arrangement is provided. The pole assembly includes interrupter units operably connected via an interlink arrangement representing a circuit breaker and a grounding switch, respectively. The drive unit operates the interrupter units. The kinematic linkage arrangement includes at least a lever member operably connected to the interlink arrangement and the drive unit, a cam member rigidly connected to the drive unit, and an elastic member adjustably connected to the cam member. The kinematic linkage arrangement transfer a predefined torque to the drive unit to maintain the circuit breaker in an open state.

A bypass switch for a STATCOM and an HVDC of the present invention is characterized by: a switch body having a column; a switch head which is coupled to the column and in which a sliding part is provided so as to be slidable up and down; a sliding part which is inserted into the switch head; a driven latch which is inserted into the sliding part and fixed to a driving shaft penetrating therethrough; a driving latch which is coupled to an end of the driving shaft exposed to the outside of the switch head, and which is provided to be driven by a solenoid; a stop coupled to the front of the switch head so as to limit movement of the driven latch; a pressure bearing which is inserted into a lower portion of the sliding part and coupled thereto by a bearing pin; an elastic body provided between the sliding part and the switch body; and a rod coupled to an upper portion of the sliding part so as to be insulated by an insulator.

A switching device having a pole assembly, a drive unit, and a kinematic linkage arrangement is provided. The pole assembly includes interrupter units operably connected via an interlink arrangement representing a circuit breaker and a grounding switch, respectively. The drive unit operates the interrupter units. The kinematic linkage arrangement includes at least a lever member operably connected to the interlink arrangement and the drive unit, a cam member rigidly connected to the drive unit, and an elastic member adjustably connected to the cam member. The kinematic linkage arrangement transfer a predefined torque to the drive unit to maintain the circuit breaker in an open state.

The invention relates to an accumulator module for a hydromechanical spring-loaded drive, wherein the spring-loaded drive is provided to actuate a high-voltage power switch (12), and wherein the accumulator module contains a pressure-tight housing (1), an accumulator piston (2) which protrudes into the housing (1) and is axially moveable in the housing (1), and a sealing cover (4) which seals the housing in an pressure-tight manner. In addition, at least one connecting channel (5, 6) is provided, which is introduced into the housing (1) for transporting a highly pressurised fluid present between the inner wall (7) of the housing and the head (3) of the accumulator piston to a high-pressure channel (11) of the spring-loaded drive, which channel is outside the housing. In order to increase the service life of the accumulator module, at least one pressure relief groove (8) is circumferentially applied to the head (3) of the accumulator piston.

The invention relates to an accumulator module for a hydromechanical spring-loaded drive, wherein the spring-loaded drive is provided to actuate a high-voltage power switch (12), and wherein the accumulator module contains a pressure-tight housing (1), an accumulator piston (2) which protrudes into the housing (1) and is axially moveable in the housing (1), and a sealing cover (4) which seals the housing in an pressure-tight manner. In addition, at least one connecting channel (5, 6) is provided, which is introduced into the housing (1) for transporting a highly pressurised fluid present between the inner wall (7) of the housing and the head (3) of the accumulator piston to a high-pressure channel (11) of the spring-loaded drive, which channel is outside the housing. In order to increase the service life of the accumulator module, at least one pressure relief groove (8) is circumferentially applied to the head (3) of the accumulator piston.

A charging mechanism charges a stored-energy spring of a stored-energy spring mechanism. The charging mechanism contains a charging gear coupled to the stored-energy spring, an intermediate shaft coupled to the charging gear, an idler gear driven by a charging motor, a freewheel coupled to the idler gear, and a dog clutch that couples the freewheel to the intermediate shaft to charge the stored-energy spring and uncouples same from the intermediate shaft in the charged state. The dog clutch contains a first clutch block that is non-rotatably coupled to the intermediate shaft, a second clutch block connected to the freewheel, and a synchronizer ring arranged between the clutch blocks and is non-rotatably coupled to the first clutch block. During a rotation relative to the second clutch block, the synchronizer ring couples in a form-fitting manner to the second clutch block in a first direction of rotation about the axis of rotation.

A switch includes: a tank; a fixed contact and a reciprocally movable contact provided inside the tank; an opening/closing shaft that rotates to thereby move the movable contact; a jack base fixed to the outer side of the tank; a torsion bar that stores a force to rotate the opening/closing shaft so as to move the movable contact in a direction away from the fixed contact; and an opening/closing lever detachably attached to the opening/closing shaft. The jack base has a first penetrating portion formed therethrough and facing the opening/closing lever. The opening/closing lever has a second penetrating portion formed therethrough and facing the jack base. The switch further includes: a bolt inserted through the first penetrating portion and the second penetrating portion; and a nut attached to a portion of the bolt, the portion of the bolt extending out of the first penetrating portion and the second penetrating portion.

A switch includes: a tank; a fixed contact and a reciprocally movable contact provided inside the tank; an opening/closing shaft that rotates to thereby move the movable contact; a jack base fixed to the outer side of the tank; a torsion bar that stores a force to rotate the opening/closing shaft so as to move the movable contact in a direction away from the fixed contact; and an opening/closing lever detachably attached to the opening/closing shaft. The jack base has a first penetrating portion formed therethrough and facing the opening/closing lever. The opening/closing lever has a second penetrating portion formed therethrough and facing the jack base. The switch further includes: a bolt inserted through the first penetrating portion and the second penetrating portion; and a nut attached to a portion of the bolt, the portion of the bolt extending out of the first penetrating portion and the second penetrating portion.