Abstract: A transfer apparatus for a dual-power transfer switch and an associated dual-power transfer switch. The transfer switch includes a pair of pushing members adapted to be moved in opposite directions to control circuit breakers for the dual-power transfer switch in a mutually different manner; a transmission arm rotatably arranged between the pair of pushing members; a pair of pins arranged on radial ends of the transmission arm; and a pair of elastic reset components arranged on the pair of pushing members.

Abstract: Described herein is a method for determining a presence of anomalous conditions in a switching apparatus installed in an electric line of an electric power distribution grid. The method includes a sequence of steps for adjusting a lumped-parameter model describing, for each electric phase, the behavior of the switching apparatus during the opening maneuvers of the switching apparatus. Simulation values provided by the lumped-parameter model are used for calculating estimation values indicative of the amounts of arc energy released by the breaking components of the switching apparatus during the opening maneuvers of the switching apparatus.

Abstract: A mechanism for an electrical device, including a plurality of metal parts which are not arranged for conducting an electrical current of which a first part includes a first contact surface and a second part includes a second contact surface arranged to move in relation to, and in contact with, the first contact surface. At least one of the first and second parts includes a Graphene and Related Materials (GRM) at its contact surface, in a metal-GRM composite.

Abstract: Described herein is a pre-mounted lock assembly for a door of a low and medium voltage electrical cabinet including a containment profile that develops along a main direction defining a seat. A mechanism is arranged in said seat. Said mechanism includes at least a rod and at least one guide element for said rod. Said guide element is rigidly connected to said profile. The pre-mounted lock assembly also includes fixing means for fixing it to said door following the connection of said at least one guide element to said profile, wherein said fixing means are arranged on said profile and/or on said at least one guide element.

Abstract: A switch pole for a low voltage switching device including an insulating casing defining an internal space with a contact region and an arc extinguishing region of said switch pole, a fixed contact assembly and a movable contact assembly positioned in said contact region and including, respectively, one or more fixed contacts and one or more movable contacts, which can be mutually coupled or uncoupled, and an arc chamber positioned in said arc extinguishing region and including a plurality of parallel arc-breaking plates and a terminal arc-breaking element, which includes a plate portion arranged in parallel to said arc-breaking plates and a cover of electrically insulating material coating, at least partially, a surface of said plate portion.

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 vacuum interrupter includes a fixed arc contact and a movable arc contact reversibly movable along a corresponding translation axis between a coupled position with the fixed arc contact and an uncoupled position from the fixed arc contact. For each electric pole, the switching apparatus further includes a motion transmission mechanism operatively coupled to a contact shaft 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: An adjustment mechanism for a circuit breaker and the corresponding circuit breaker. The adjustment mechanism includes a pin adapted to move with respect to a base part of the circuit breaker along a predefined path; a first linkage coupled to the base part and adapted to drive a first terminal of the circuit breaker to move towards or away from the base part; and a second linkage coupled to a second terminal of the circuit breaker and adapted to be actuated by the pin to drive the second terminal to move towards or away from the base part. The groove has a first segment; and the second linkage is actuated by the pin and the first linkage is not actuated by the pin when the pin moves within the first segment in a first direction along the predefined path.

Abstract: A switch pole for a low voltage switching device including an insulating casing defining an internal space with a contact area and an arc extinguishing area of said switch pole, a fixed contact assembly and a movable contact assembly positioned in said contact area and including, respectively, one or more fixed contacts and one or more movable contacts, which can be mutually coupled or uncoupled, and an arc chamber positioned in said arc extinguishing area and including a plurality of parallel arc-breaking plates and a terminal arc-breaking element, which includes a plate portion arranged in parallel to said arc-breaking plates and having one or more through openings and an elongated portion protruding from said plate portion and extending across said arc-extinguishing area, from said plate portion towards said fixed contact assembly.

Abstract: Provided herein is a label structure for tagging a product item. The label structure includes a first graphic pattern having a first number of pixels and printed on a first portion of the label structure; a second graphic pattern having a second number of pixels and printed on a second portion of the label structure, the second graphic pattern forming an optical code readable by an optical decoding device; and shielding means capable of hiding or making visible the first graphic pattern depending on the values taken by a physical quantity to which the label structure is exposed. The first and second graphic patterns can be observed in combination, when the first graphic pattern is made visible by the shielding means.

Abstract: A device for door and phase segregation in low voltage circuit breakers, in particular in molded case circuit breakers, having a plurality of phases each provided with a lug for electrical connection of said circuit breaker and a venting aperture for venting off gases, the device comprising a conductive element adapted to be fixed to a corresponding lug of the circuit breaker and provided with electrical connection means for electrical connection of the circuit breaker, comprising a first insulating element covering the conductive element and/or a second insulating element adapted to be interposed between two adjacent phases of the circuit breaker.

Abstract: Described herein is a switching apparatus for low or medium voltage electric grids, which includes one or more electric poles. Each electric pole includes: an outer casing defining an internal volume of the electric pole; a fixed contact assembly accommodated in the internal volume of the electric pole and including a fixed contact member extending along a longitudinal axis of the electric pole; at least one movable contact assembly accommodated in the internal volume of the electric pole; an actuation member accommodated in the internal volume of the electric pole and arranged coaxially and externally relative to the fixed contact member, so that the fixed contact member passes through the actuation member along the longitudinal axis. The actuation member is slidingly movable along the fixed contact member. When moving between the first and second actuation positions, the actuation member transiently couples to each trip mechanism to actuate the trip mechanism.

Abstract: A method for performing asset and energy management for an electrical distribution system includes receiving measurement data of plurality of input variables of electrical distribution system; generating coefficient matrix for each output variable used for asset and energy management, based on effects of plurality of input variables on corresponding output variable, using sparse regression. The coefficient matrix comprises one or more input variables from plurality of input variables. Furthermore, the method comprises determining plurality of system representations for each output variable, based on corresponding coefficient matrix. Each of plurality of system representations indicates relationship between one or more input variables and the corresponding output variable.

Abstract: A switch pole for a low voltage switching device comprising an insulating casing defining an internal space with a contact region and an arc extinguishing region of the switch pole; a fixed contact assembly and a movable contact assembly positioned in the contact region and including, respectively, one or more fixed contacts and one or more movable contacts, which can be mutually coupled or uncoupled; a baffle arrangement including one or more sheets of insulating material arranged on the movable contact assembly in such a way to move together the movable contact assembly and be interposed between the support body and the front wall of the insulating casing.

Abstract: A method for reading a digital graphical diagram representing an electric circuit is provided. The graphical diagram includes one or more diagram pages, each representing a portion of the electric circuit. The method includes for each diagram page detecting the graphical objects included in the diagram page, for each diagram page basing on the detected graphical objects, obtaining predictive information related to the components included in the portion of electric circuit represented in the diagram page, and for each diagram page harmonizing the predictive information related to the components of the portion of electric circuit represented in the diagram page to obtain an identification list of the components of the electric circuit.

Abstract: Described herein is a switch pole for a low voltage switching device including an insulating casing defining an internal space with a contact area and an arc-extinguishing area of the switch pole, a fixed contact assembly and a movable contact assembly positioned in the contact area and including, respectively, one or more fixed contacts and one or more movable contacts, which can be mutually coupled or uncoupled, and an arc chamber positioned in the arc-extinguishing area that includes a plurality of parallel arc-breaking plates. The insulating casing includes an insulating wall partially separating the contact area from the arc-extinguishing area and a channel connects the contact area to the arc-extinguishing area. The switch pole further includes an additional arc-breaking element anchored to the insulating wall, passing through the channel of the insulating wall and arranged in electrical connection with a terminal arc-breaking plate of the arc chamber.