Abstract: A cutout mountable recloser that remains latched to the cutout until the recloser is selectively mechanically unlatched via at least rotation of a driver by an operator. During installation, including while the recloser is being latched to the cutout, the recloser can be in an open condition. Latching of the recloser to the cutout can include increasing a tension force exerted by the cutout on the recloser by increasing a linear distance between first and second terminals of the recloser. With the opened recloser latched to the cutout, the recloser can be mechanically closed via a release of stored energy from a closing mechanism. The recloser can selectively be mechanically unlatched from the cutout by a subsequent reduction in the linear distance between first and second terminals of the recloser, which can reduce the tension force being exerted by the cutout.

Abstract: A power supply unit for an IED for LV or MV electric power applications characterized in that it comprises: a power transformer stage, which is operatively coupled to a feeding conductor to harvest electric power from said feeding conductor; a first storage stage, which is electrically connected to said power transformer stage to store electric energy; a first step-down conversion stage, which is electrically connectable/disconnectable to/from said first storage stage; a switching stage adapted to electrically connect/disconnect said first step-down conversion stage with/from said first storage stage; and a second storage stage, which is electrically connected to said first step-down conversion stage to store electric energy.

Abstract: The invention relates to a switching device for a MV electric power distribution network. The switching device comprises electric contacts, which are electrically connectable to a conductor of said electric power distribution network, and a control unit. The switching device comprises signalling means emitting visible light externally to said switching device, said signalling means being controlled by said control unit.

Abstract: A subsea electric power distribution installation including: one or more MV switching apparatuses electrically connected with an electric power source an one or more electric loads, the switching apparatuses being adapted to switch a MV electric power supply to the electric loads; electronic equipment operatively associated with the switching apparatuses for managing the operation of the switching apparatuses, the electronic equipment being configured to receive a LV electric power supply. The subsea electric power distribution installation includes a centralized energy storage unit including one or more storing devices for storing electric energy to feed the electronic equipment, wherein the centralized energy storage unit is adapted to receive electric power from the electric power source to charge the storing devices, wherein the centralized energy storage unit is adapted to provide an electric power supply to the the electronic equipment by absorbing electric power from the storing devices.

Abstract: A cutout mountable recloser that remains latched to the cutout until the recloser is selectively mechanically unlatched via at least rotation of a driver by an operator. During installation, including while the recloser is being latched to the cutout, the recloser can be in an open condition. Latching of the recloser to the cutout can include increasing a tension force exerted by the cutout on the recloser by increasing a linear distance between first and second terminals of the recloser. With the opened recloser latched to the cutout, the recloser can be mechanically closed via a release of stored energy from a closing mechanism. The recloser can selectively be mechanically unlatched from the cutout by a subsequent reduction in the linear distance between first and second terminals of the recloser, which can reduce the tension force being exerted by the cutout.

Abstract: A switching device including: one or more fixed contacts and one or more movable contacts, each movable contact being reversibly movable between an opening position, at which the movable contact is decoupled from a corresponding fixed contact, and a closing position, at which the movable contact is coupled with the corresponding fixed contact; an electromagnetic actuator adapted to actuate the movable contacts between the opening and closing positions, the electromagnetic actuator including a fixed yoke and a movable armature operatively associated with the fixed yoke to form a magnetic circuit, the movable armature being reversibly movable between a first position, which corresponds to the opening position of the movable contacts, and a second position, which corresponds to the closing position of the movable contacts; and a kinematic chain to operatively connect the movable armature with the movable contacts, wherein the electromagnetic actuator includes a first excitation coil and a second excitation coil

Abstract: A subsea electric power distribution installation (1) comprising: —one or more MV switching apparatuses (70) electrically connected with an electric power source (50) and one or more electric loads (60), said switching apparatuses being adapted to switch a MV electric power supply (V0) to said electric loads; —electronic equipment (11, 12) operatively associated with said switching apparatuses for managing the operation of said switching apparatuses, said electronic equipment being configured to receive a LV electric power supply.

Abstract: A power and control device (1) for medium voltage applications characterized in that it comprises a power and control unit (2) having a first feeding port (21) electrically coupleable with electric power supply means (60), a first control device (3) operatively coupled to said first feeding port, said first control device being adapted to prevent the electrical feeding of said power and control unit through said first feeding port, when the operating temperature of said power and control device is lower than a first threshold value (TH1) indicative of a minimum operating temperature provided for said power and control unit.

Abstract: A switching device including: one or more fixed contacts and one or more movable contacts, each movable contact being reversibly movable between an opening position, at which the movable contact is decoupled from a corresponding fixed contact, and a closing position, at which the movable contact is coupled with the corresponding fixed contact; an electromagnetic actuator adapted to actuate the movable contacts between the opening and closing positions, the electromagnetic actuator including a fixed yoke and a movable armature operatively associated with the fixed yoke to form a magnetic circuit, the movable armature being reversibly movable between a first position, which corresponds to the opening position of the movable contacts, and a second position, which corresponds to the closing position of the movable contacts; and a kinematic chain to operatively connect the movable armature with the movable contacts, wherein the electromagnetic actuator includes a first excitation coil and a second excitation coil

Abstract: A power supply unit for an IED for LV or MV electric power applications characterized in that it comprises: a power transformer stage, which is operatively coupled to a feeding conductor to harvest electric power from said feeding conductor; a first storage stage, which is electrically connected to said power transformer stage to store electric energy; a first step-down conversion stage, which is electrically connectable/disconnectable to/from said first storage stage; a switching stage adapted to electrically connect/disconnect said first step-down conversion stage with/from said first storage stage; and a second storage stage, which is electrically connected to said first step-down conversion stage to store electric energy.

Abstract: An electronic system is disclosed for an associated electrical apparatus, the system having at least a binary input adapted to receive one or more candidate signals; at least an electronic active load having one or more electronic active devices and operatively connected to the binary input; and a controller operatively associated to the binary input and to the active load. The controller can detect application of a candidate signal to the binary input and electrically drive the active load upon such detection; and after absorption of a predetermined amount of energy, validate the candidate signal if its residual content of energy exceeds a predetermined threshold.

Abstract: The invention relates to a switching device for a MV electric power distribution network. The switching device comprises electric contacts, which are electrically connectable to a conductor of said electric power distribution network, and a control unit. The switching device comprises signalling means emitting visible light externally to said switching device, said signalling means being controlled by said control unit.

Abstract: A power and control unit for a low or medium voltage apparatus, said apparatus comprising at least a couple of electrical contacts that can be coupled/separated by means of an electro-magnetic actuator, first power storage means for supplying electric power for the operations of said apparatus and power supply means for charging first said power storage means, characterized in that it comprises: a primary control device for managing the operations of said apparatus when said power supply means are available; a secondary control device for managing the operations of said apparatus when said power supply means are not available, said secondary control device being able to receive electric power directly from said first power storage means.

Abstract: A power and control device (1) for medium voltage applications characterised in that it comprises a power and control unit (2) having a first feeding port (21) electrically coupleable with electric power supply means (60), a first control device (3) operatively coupled to said first feeding port, said first control device being adapted to prevent the electrical feeding of said power and control unit through said first feeding port, when the operating temperature of said power and control device is lower than a first threshold value (TH1) indicative of a minimum operating temperature provided for said power and control unit.

Abstract: There is described a new disordered nanoporous crystalline form of syndiotactic polystyrene, characterized by a specific X-ray diffractrogram, the process for its preparation and various articles comprising this form of s-PS. This disordered nanoporous crystalline form exhibits empty crystalline cavities of nanometric sizes, and in this case performs the function of absorbing molecules with low molecular mass and is useful in particular as functionally active packaging for plant products.

Abstract: A plug includes a pin having an axial contact at its opposite end with a mounting rod connected to a center conductor. At the interface between the pin and the inner wall of the plug body, a support sleeve mounted on the shaft and bearing axially against a collar formed on said rod is provided. Axially, a locking ring is secured to the shaft so that the support sleeve is clamped between the collar of the rod and the locking ring, if necessary, leaving a degree of freedom of rotation between the sleeve and the pin. Radially, the outer surface of the sleeve comes into direct contact with the inner wall of the bore of the plug body, to which it is directly secured. The direct attachment of the sleeve to the plug body may be obtained by a snap-in connection with notches cooperating with a counterpart groove.

Abstract: A switchgear panel and a method for servicing/maintaining a switchgear panel are disclosed which provide a Human Machine Interface that includes a first memory unit, and a first circuit breaker on board of which an Intelligent Electronic Device is placed. The Intelligent Electronic Device having an associated memory unit. The first memory unit and/or on the associated memory unit storing sets of data related to one or more of the switchgear panel, the first Intelligent Electronic Device, and the first circuit breaker. The Human Machine Interface is in operative communication with the first Intelligent Electronic Device, to transfer and save one or more of the sets of data stored on the associated memory unit onto the first memory unit or vice versa.

Abstract: An electronic system is disclosed for an associated electrical apparatus, the system having at least a binary input adapted to receive one or more candidate signals; at least an electronic active load having one or more electronic active devices and operatively connected to the binary input; and a controller operatively associated to the binary input and to the active load. The controller can detect application of a candidate signal to the binary input and electrically drive the active load upon such detection; and after absorption of a predetermined amount of energy, validate the candidate signal if its residual content of energy exceeds a predetermined threshold.

Abstract: A Medium Voltage Circuit Breaker (CB) comprising an electronic protection and control unit having: a base, fixed to the CB, comprising a main body having fixing means for fixing to the CB, a first side of said main body comprising a confined space including connections to the CB and internal accessories thereof, a second side of said main body comprising a plurality of first power and/or signal connection means; a removable unit comprising a casing, a first part of said casing hosting one or more Intelligent Electronic Devices, a second part of said casing being removably coupled to said base and comprising a plurality of second power and/or signal connection means connected to said first power and/or signal connection means.

Abstract: A single-coil actuator for low or medium voltage applications which comprises a first assembly which comprises a first casing having a first half-casing and a second half-casing coupled to each other. The first casing defines an internal space housing an electromagnet having a coil and an armature movable between two positions. The first half-casing has a first opening for the mechanical coupling of the armature with an external element, while one of the first or second half-casing has a second opening for the electrical connection of the electromagnet. The electrical connection comprises a first connection element of the socket and plug-type connection which is electrically connected to the coil and positioned in correspondence of the second opening.