Abstract: A protective device, in particular a shin guard, includes one or more stacked layers that are coupled together and define a first face for contacting the body of a user and an opposite second face for facing outward, with elements engaging the protective device with an anatomical zone. At least one layer is made of a polymeric gel having an elasticity sufficient to return to the initial condition after a deformation caused by an impact, or alternatively of an expanded plastic material that is deformable and elastically compressible. The first face has a three-dimensional conformation, with the areas of contact with the user's body projecting outwards toward the user's body to a greater extent than other areas that are recessed, the recessed areas being interposed between the protruding areas and failing to come in contact with the user's body in the absence of deformations caused by an impact.

Abstract: An UPS device for electric power distribution installations, the UPS device including: first electric terminals for electrical connection with an electric load to be fed by the UPS device; second electric terminals for electrical connection with a power supply source adapted to feed the UPS device; third electric terminals for electrical connection with a back-up unit adapted to feed the UPS device, when the power supply source is not available, the back-up unit having one or more replaceable batteries; a power conversion stage electrically connectable with the first, second and third electric terminals, the power conversion stage being adapted to receive a power supply voltage from the power supply source or a back-up voltage from the back-up unit, when the power supply source is not available, and being adapted to provide an adjustable load voltage to the electric load; and an interface stage to electrically couple or decouple the back-up unit with or from the power conversion stage.

Abstract: A method for device monitoring includes: providing a plurality of fleet measurement data for at least one device, where the plurality of fleet measurement data includes a number of fleet device data measurements “Nfleet;” providing a plurality of device measurement data for a monitored device, where the plurality of device measurement data includes a number of monitor device data measurements “Ndata;” determining a fleet distribution “Fdist” determined as a distribution of differences between consecutive measurements of the plurality of fleet measurement data; determining a device distribution “Ddist” determined as a distribution of differences between consecutive measurements of the device measurement data; determining an effective number of data measurements “Neff” and determining a probability of failure of the monitored device, the determining including utilising the fleet distribution “Fdist,” the device distribution “Ddist,” the number of monitor device data measurements “Ndata,” and the effective numbe

Abstract: A coil actuator for low and medium voltage applications including: a coil electromagnet having a single coil winding and a movable member; and a power and control unit including: a power circuit operatively coupled with the coil electromagnet, the power circuit including input terminals for receiving an input voltage and an intermediate node, the electromagnet being electrically connected with the input terminal and the intermediate node, the power circuit further including a discharge circuit, which is electrically connected with the first input terminal and the intermediate node in parallel with the coil winding, and a switch circuit, which is electrically connected with the intermediate node and the second input terminal, the switch circuit including at least a power switch; a controller operatively coupled with the power circuit to drive the at least a power switch to control of an input current circulating through the power circuit, the controller being adapted to perform a PWM control of the input curre

Abstract: A coil actuator for low and medium voltage applications comprising a coil electromagnet provided with a single coil winding and a movable anchor and a power and control unit comprising: a power circuit operatively coupled with said coil electromagnet, said power circuit comprising input terminals, at which said power circuit receives an input voltage; a PWM controller operatively coupled with said power circuit, said PWM controller being adapted to control an input current flowing through said power circuit to obtain and maintain an average operating level selected an excitation current feeding said coil electromagnet. Said PWM controller is adapted to set a plurality of reference values for said input current to control said input current, each reference value for said input current being selected among said plurality of reference values depending on the behavior of said input voltage.

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 method is provided for determining the operating status a MV switching apparatus. The method includes providing a test signal to the test winding for an observation period of time, the test signal having a waveform capable of exciting the magnetic element; obtaining first measuring data indicative of a voltage at first terminals of the capacitor bank during the observation period of time; obtaining second measuring data indicative of a voltage at second terminals of the test winding and indicative of a current circulating along the test winding during the observation period of time; and, calculating estimation data indicative of the operating status of the capacitor bank at the end of the observation period of time on the basis of the first and second measuring data, the first estimation data comprising a first estimation value indicative of the capacitance of the capacitor bank.

Abstract: An UPS device for electric power distribution installations, the UPS device including: first electric terminals for electrical connection with an electric load to be fed by the UPS device; second electric terminals for electrical connection with a power supply source adapted to feed the UPS device; third electric terminals for electrical connection with a back-up unit adapted to feed the UPS device, when the power supply source is not available, the back-up unit having one or more replaceable batteries; a power conversion stage electrically connectable with the first, second and third electric terminals, the power conversion stage being adapted to receive a power supply voltage from the power supply source or a back-up voltage from the back-up unit, when the power supply source is not available, and being adapted to provide an adjustable load voltage to the electric load; and an interface stage to electrically couple or decouple the back-up unit with or from the power conversion stage.

Abstract: A coil actuator for low and medium voltage applications including: a coil electromagnet having a single coil winding and a movable member; and a power and control unit including: a power circuit operatively coupled with the coil electromagnet, the power circuit including input terminals for receiving an input voltage and an intermediate node, the electromagnet being electrically connected with the input terminal and the intermediate node, the power circuit further including a discharge circuit, which is electrically connected with the first input terminal and the intermediate node in parallel with the coil winding, and a switch circuit, which is electrically connected with the intermediate node and the second input terminal, the switch circuit including at least a power switch; a controller operatively coupled with the power circuit to drive the at least a power switch to control of an input current circulating through the power circuit, the controller being adapted to perform a PWM control of the input curre

Abstract: A coil actuator for low and medium voltage applications including a coil electromagnet with a single coil winding and a movable anchor and a power and control unit including: a power circuit operatively coupled with the coil electromagnet, the power circuit including input terminals, at which the power circuit receives an input voltage; a PWM controller operatively coupled with the power circuit, the PWM controller being adapted to control an input current flowing through the power circuit to obtain and maintain an average operating level selected an excitation current feeding the coil electromagnet. The PWM controller is adapted to set a plurality of reference values for the input current to control the input current, each reference value for the input current selected among the plurality of reference values depending on the behavior of the input voltage.

Abstract: An electronic charger for electric power distribution installations is provided. The electronic charger includes a DC/DC converter of the SEPIC type including an input stage, an output stage and a coupling capacitor. The input stage is electrically connected with input terminals and includes an input inductor and a switching device. The output stage is electrically connected with output terminals and includes an output inductor, an output capacitor and a blocking device. The coupling capacitor is configured to electrically couple the input stage and the output stage with a capacitive coupling. A first sensor provides a first sensing signal indicative of a charging current. A first controller receives the first sensing signal and a reference signal and provides a driving signal to control the switching device.

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 method for determining the operating status of a MV switching device is provided. The method includes providing a test signal to said test coil for an observation period of time. Measuring data is obtained which is indicative of the voltage at the terminals of the test coil and of the current circulating along the test coil during the observation period of time. Observation data is calculated which is indicative of the electric behavior of the test coil at the end of said observation period of time. A transformation function is selected which is indicative of the electromagnetic behavior of the electromagnetic actuator. First estimation data is calculated which is indicative of the operating status of the electromagnetic actuator.

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 MV switching device (100) comprising: one or more electric poles, each comprising a movable contact (16) and a fixed contact (17) adapted to be coupled or uncoupled during the switching operations of said switching device; and an electromagnetic actuator (13) operatively coupled to the movable contacts of the electric poles, said electromagnetic actuator having at least an excitation winding (152); power supply means (60) for supplying electric power to said electromagnetic actuator; a power drive circuit (1) for driving said electromagnetic actuator, said power drive circuit comprising sensing means for providing signals indicative of the currents flowing along the circuit branches of said power drive circuit and of the voltages at the terminals of said power drive circuit.

Abstract: A method for determining the operating status a MV switching apparatus, which comprises: one or more electric poles, each comprising a movable contact and a fixed contact adapted to be coupled or uncoupled during the switching operations of the switching apparatus; an electromagnetic actuator for actuating one or more movable contacts of the electric poles, the electromagnetic actuator having at least a test winding wound around a magnetic element; a capacitor bank for providing electric power to the electromagnetic actuator.

Abstract: An electronic charger for electric power distribution installations is provided. The electronic charger includes a DC/DC converter of the SEPIC type including an input stage, an output stage and a coupling capacitor. The input stage is electrically connected with input terminals and includes an input inductor and a switching device. The output stage is electrically connected with output terminals and includes an output inductor, an output capacitor and a blocking device. The coupling capacitor is configured to electrically couple the input stage and the output stage with a capacitive coupling. A first sensor provides a first sensing signal indicative of a charging current. A first controller receives the first sensing signal and a reference signal and provides a driving signal to control the switching device.

Abstract: A method for determining the operating status of a MV switching device (1), which comprises one or more electric poles, each comprising a movable contact and a fixed, contact adapted to be coupled or uncoupled during the switching operations of said switching device, and an electromagnetic actuator comprising a magnetic core, a test coil wound around said magnetic core and a movable plunger operatively coupled to the movable contact of each electric pole.

Abstract: The present invention relates to a power supply and measuring device for an electronic device (e.g. an IED), which is configured to provide supervision, control, protection, communication and/or monitoring functionalities for LV or MV circuits or apparatuses. The power supply device comprises a current transformer, which is operatively associated to a main power line. An input section of the power supply device comprises a burden regulating stage that is configured to regulate the equivalent electric load at the secondary winding of said current transformer. An output section of the power supply device provides a supply voltage suitable to feed said electronic device.

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.