Abstract: A switching apparatus including one or more electric poles. For each electric pole, the switching apparatus includes a first pole terminal, a second pole terminal, a ground terminal, and a plurality of fixed contacts spaced apart one from another. For each electric pole, the switching apparatus further includes a movable contact and a vacuum interrupter. The movable contact is reversibly movable about a corresponding rotation axis. The vacuum interrupter includes a movable arc contact reversibly movable along a corresponding translation axis. For each electric pole, the switching apparatus further includes a motion transmission mechanism operatively coupled to a contact shaft solidly coupled to the movable arc contact. The motion transmission mechanism is actuatable by the movable contact to cause a movement of said movable arc contact along said translation axis, when said movable contact moves about said rotation axis.

Abstract: A method for assembling a switching apparatus for medium voltage electric systems is provided. The method includes, for each electric pole of the switching apparatus, providing a mounting assembly. The mounting assembly includes a support structure, a vacuum interrupter, a motion transmission mechanism, and an auxiliary contact. The method further includes providing a first semi-finished structure of the switching apparatus, where the first semi-finished structure includes, for each electric pole of the switching apparatus, a first pole terminal and a first fixed contact electrically connected to the first pole terminal. The method further includes, for each electric pole of the switching apparatus, installing the mounting assembly on the first semi-finished structure.

Abstract: A switching apparatus is provided herein. The switching apparatus includes: (i) a first pole terminal, a second pole terminal and a ground terminal, (ii) a first contact arrangement including a first fixed contact member and a first movable contact member, (iii) a second contact arrangement including a second fixed contact member and a second movable contact member, (iv) a vacuum chamber wherein the second fixed contact and the second movable contact are enclosed and can be coupled or decoupled, and (v) an electrically conductive coupling lever pivoted on the second movable contact member and reversibly movable about a second rotation axis.

Abstract: Disclosed herein is a switching apparatus for medium voltage electric systems, said switching apparatus including one or more electric poles. For each electric pole, said switching apparatus includes: a first pole terminal, a second pole terminal, and a ground terminal; a first fixed contact member and a first movable contact member, said first fixed contact member being electrically connected to said first pole terminal and including a first fixed contact, said first movable contact member being electrically connected to said second pole terminal and including a first movable contact; a second fixed contact member and a second movable contact member, said second fixed contact member being electrically connected to said first pole terminal and including a second fixed contact, said second movable contact member including a second movable contact; a vacuum chamber, in which said second fixed contact and said second movable contact are enclosed; and a motion transmission mechanism.

Abstract: A switching apparatus includes one or more electric pole units, each electric pole unit comprising a fixed contact, a movable contact, a first pole terminal, a second pole terminal, and a motion transmission arrangement to reversibly move the movable contact. The motion transmission arrangement includes a conductive motion transmission member coupled to the movable contact. The first pole terminal is in electrical connection to the fixed contact while the second pole terminal includes a first coupling region in electrical connection with a second coupling region of the conductive motion transmission member. Each electric pole unit further includes a shielding element formed by a conductive hollow body and arranged in a relative fixed position with respect to the second pole terminal and the motion transmission member. The shielding element is arranged to at least partially surround the first coupling and the second coupling region.

Abstract: A mechanical latching accessory kit for a Medium Voltage contactor including one or more movable contacts connected through a mechanical link to a contact actuator moving the one or more movable contacts between a contact open position and a contact closed position. The mechanical latching accessory kit includes: a supporting interface adapted to be fixed to and removed from the Medium Voltage contactor; a latching element movable between a first operating position and a second resting position; a latching actuating system moving the latching element between the first, operating, position and the second, resting, position; the latching element being adapted, when it is in the first operating position, to cooperate with the mechanical link of the Medium Voltage contactor to latch the one or more movable contacts, and, when it is in the second resting position, to release the one or more movable contacts.

Abstract: The present disclosure is directed to a for manufacturing a switching apparatus for electric systems. The method includes (i) providing a first housing shell of the switching apparatus; (ii) providing a second housing shell of the switching apparatus; (iii) assembling the first and second housing shells and a number of operating components of the switching apparatus, thereby obtaining a preliminary assembly of the switching apparatus; and (iv) joining first and second coupling edges of the first and second housing shells through a vibration welding process, thereby forming a junction between the first and second housing shells and obtaining a sealed outer casing for the switching apparatus.

Abstract: Disclosed herein is a switching apparatus for medium voltage electric systems, said switching apparatus including one or more electric poles. For each electric pole, said switching apparatus includes: a first pole terminal, a second pole terminal, and a ground terminal; a first fixed contact member and a first movable contact member, said first fixed contact member being electrically connected to said first pole terminal and including a first fixed contact, said first movable contact member being electrically connected to said second pole terminal and including a first movable contact; a second fixed contact member and a second movable contact member, said second fixed contact member being electrically connected to said first pole terminal and including a second fixed contact, said second movable contact member including a second movable contact; a vacuum chamber, in which said second fixed contact and said second movable contact are enclosed; and a motion transmission mechanism.

Abstract: A switching apparatus is provided herein. The switching apparatus includes: (i) a first pole terminal, a second pole terminal and a ground terminal, (ii) a first contact arrangement including a first fixed contact member and a first movable contact member, (iii) a second contact arrangement including a second fixed contact member and a second movable contact member, (iv) a vacuum chamber wherein the second fixed contact and the second movable contact are enclosed and can be coupled or decoupled, and (v) an electrically conductive coupling lever pivoted on the second movable contact member and reversibly movable about a second rotation axis.

Abstract: A switching apparatus includes one or more electric pole units, each electric pole unit comprising a fixed contact, a movable contact, a first pole terminal, a second pole terminal, and a motion transmission arrangement to reversibly move the movable contact. The motion transmission arrangement includes a conductive motion transmission member coupled to the movable contact. The first pole terminal is in electrical connection to the fixed contact while the second pole terminal includes a first coupling region in electrical connection with a second coupling region of the conductive motion transmission member. Each electric pole unit further includes a shielding element formed by a conductive hollow body and arranged in a relative fixed position with respect to the second pole terminal and the motion transmission member. The shielding element is arranged to at least partially surround the first coupling and the second coupling region.

Abstract: A contactor for medium voltage electric systems including: one or more electric poles; for each electric pole, a fixed contact and a corresponding movable contact reversibly movable between a first position, at which the movable contact is decoupled from the fixed contact, and a second position, at which the movable contact is coupled with the fixed contact; an electromagnetic actuator including a magnetic yoke having a fixed yoke member and a movable yoke member, the movable yoke member reversibly movable between a third position corresponding to the first position of the movable contacts, at which the movable yoke member is decoupled from the fixed yoke member, and a fourth position, corresponding to the second position of the movable contacts, at which the movable yoke member is coupled with the fixed yoke member, the electromagnetic actuator including an excitation circuit assembly including an excitation coil wound around the magnetic yoke and electrically connected with an auxiliary electric power suppl

Abstract: An auxiliary/control switches kit box for a Medium Voltage switching device including one or more movable contacts operated between a contact open position and a contact closed position by a kinematic chain connected to a contact actuator.

Abstract: An electric terminal for an electric pole unit of a switching device, the electric terminal being adapted to be electrically connected to a current breaking unit of the electric pole unit and to an external conductor and being adapted to be inserted in a corresponding shaped port of an insulating housing of the electric pole unit. The electric terminal comprises one or more first coupling surfaces mating with one or more second coupling surfaces of the insulating housing, the first coupling surfaces abutting against the second coupling surfaces when the electric terminal is inserted in the corresponding shaped port of the insulating housing in such a way to obtain a mechanical coupling by friction between the electric terminal and the insulating housing.

Abstract: An auxiliary/control switches kit box for a Medium Voltage switching device including one or more movable contacts operated between a contact open position and a contact closed position by a kinematic chain connected to a contact actuator.

Abstract: A mechanical latching accessory kit (1) for a Medium Voltage contactor (100) comprising one or more movable contacts (101) connected through a mechanical link (110) to a contact actuator (102) moving said one or more movable contacts (101) between a contact open position and a contact closed position. The mechanical latching accessory kit (1) comprises: a supporting interface (2) adapted to be fixed to and removed from said Medium Voltage contactor (100); a latching element (3) movable between a first operating position and a second resting position; a latching actuating system (4) moving said latching element (3) between said first, operating, position and said second, resting, position; said latching element (3) being adapted, when it is in said first operating position, to cooperate with the mechanical link (110) of said Medium Voltage contactor (100) to latch said one or more movable contacts (101), and, when it is in said second resting position, to release said one or more movable contacts (101).

Abstract: An electric terminal for an electric pole unit of a switching device, the electric terminal being adapted to be electrically connected to a current breaking unit of the electric pole unit and to an external conductor and being adapted to be inserted in a corresponding shaped port of an insulating housing of the electric pole unit. The electric terminal comprises one or more first coupling surfaces mating with one or more second coupling surfaces of the insulating housing, the first coupling surfaces abutting against the second coupling surfaces when the electric terminal is inserted in the corresponding shaped port of the insulating housing in such a way to obtain a mechanical coupling by friction between the electric terminal and the insulating housing.

Abstract: A medium voltage pole assembly which includes a supporting frame, a pole insulator having a first and a second electrical terminal protruding therefrom, and a pole body housed within the pole insulator and having a first and a second electrical contact couplable and uncouplable with each other and respectively electrically connected to the first and second electrical terminal. The supporting frame includes first coupling means including a first coupling surface and the pole insulator includes second coupling means including one or more flaps slidingly couplable to the first coupling surface and mechanically fixing the pole insulator to the supporting frame.

Abstract: An electrical connection assembly in an electrical switchgear comprising a circuit breaker movable between a disconnected, withdrawn, position and a connected, service, position, wherein said circuit breaker comprises, for each phase, a first connection terminal couplable to/uncouplable from a corresponding second, stationary, connection terminal of said switchgear, characterized in that said electrical connection assembly comprises a first contact element electrically and mechanically connected to said first connection terminal of said circuit breaker, a second contact element electrically and mechanically connected to said second, stationary, connection terminal of said switchgear, and a third, intermediate, contact element that is electrically and mechanically connected with one of said first and second contact elements and that is electrically and mechanically couplable to/uncouplable from the other of said first and second contact elements, and further characterized in that said first and second contact