Abstract: An industrial plant for treating materials includes one or more lines for treating materials and one or more user devices and a system for supplying electrical energy. The power supply system includes a power supply circuit disposed in a site of the plant connected to the latter, and configured to supply electrical energy to said one or more user devices. A method to supply electrical energy to the plant is also disclosed.

Abstract: Electric power supply apparatus in an industrial plant (20) for treating materials, wherein the plant (20) comprises one or more lines (11, 21) for treating the materials and one or more user devices (17, 18, 19) powered with alternating current by power supply means (13) comprising at least one transformer (14) connected to a mains power network (15) and a power supply system (16) located downstream of the transformer (14).

Abstract: A plant for melting and/or heating metal material includes a furnace, electrical energy feed means and an electric power apparatus connected between the feed means and the furnace; and a corresponding method to power the melting and/or heating plant.

Abstract: Embodiments concern a plant for melting and/or heating metal material and a corresponding method to supply electrical energy. The plant comprises at least one induction furnace (11) and means (12) for supplying electrical energy to the induction furnace 11), wherein the electric power supply means (12) comprise at least one transformer (13) connected to an alternating current mains power network (14), at least one rectifier (15) located downstream of the transformer (13), at least one converter (16) located downstream of the rectifier device (15), and at least one coil (17) for melting and/or heating metal material.

Abstract: An electric power supply apparatus for a user device, in particular for steel industry applications, that includes means for connection to an electricity grid for supplying a mains voltage and a mains current, and at least one electric line for connecting the electricity grid to the user device, wherein the electric line includes one or more electric apparatuses located between the electricity grid and the user device.

Abstract: A plant for melting and/or heating metal material includes a furnace, electrical energy feed means and an electric power apparatus connected between the feed means and the furnace; and a corresponding method to power the melting and/or heating plant.

Abstract: Converter device configured to convert direct voltage and current into alternating voltage and current to be supplied to a load (L). The converter device comprises a bank (11) of capacitors (12), a plurality of power semiconductors (13), a heat sink (14) and a casing (15).

Abstract: An electric power apparatus for an electric arc furnace comprises at least one electrode and is connectable to a power network to supply to the electrode the electric energy to generate an electric arc to melt a metal mass. The apparatus comprises an electric regulation unit interposed and connected to the power network and to the electrode and configured to regulate at least one electric quantity for powering the electrode. The apparatus comprises at least one detection device to detect the electric quantity, interposed between the electrode and the electric regulation unit, a positioning device to move the at least one electrode nearer to/away from the metal mass to be melted and a control and command unit.

Abstract: A melting method including a step of loading solid metal material into an electric furnace, a step of generating an electric arc between at least one electrode and the metal material, a step of perforating the metal material during which the electrode is moved through the metal material, a step of melting the solid metal material in order to obtain a molten material, and a step of refining the molten material by adding reaction compounds. At least one of the steps includes regulating the electric parameters of the electric arc.

Abstract: A melting method including a step of loading solid metal material into an electric furnace, a step of generating an electric arc between at least one electrode and the metal material, a step of perforating the metal material during which said electrode is moved through said metal material, a step of melting the solid metal material in order to obtain a molten material, a step of refining said molten material by adding reaction compounds. At least one of said steps includes regulating the electric parameters of the electric arc.

Abstract: A device for the hot measuring, during rolling, of a transverse size of a metal profile (12) includes a transmission element with at least two sections distinct and spatially separated from each other and disposed along a nominal axis of feed of the metal profile, configured to generate an electromagnetic field with a desired profile of force lines, and a reception element disposed along the nominal axis in a position comprised in the overall longitudinal bulk of the transmission element (14) and configured to detect a signal relating to the variations of the electromagnetic field due to the passage of the metal profile.

Abstract: A method for the hot measuring of a transverse size of a metal profile to obtain a diameter and/or a mean thickness includes providing power with a sinusoidal current having at least two frequencies, a transmission element having at least two sections distinct and spatially separated from each other and disposed along a nominal axis of feed of the metal profile, generating an electromagnetic field with a desired profile of the force lines, and detecting a signal relating to the variations of the electromagnetic field due to the passage of the metal profile through the sections of the transmission element using a reception element having one or more sections distinct and spatially separated from each other and disposed along the nominal axis in a position of the transmission element.

Abstract: A method for the hot measuring of a transverse size of a metal profile to obtain the measurement of a diameter and/or a mean thickness of said metal profile, providing power with a sinusoidal current having at least two frequencies, a transmission element having at least two sections distinct and spatially separated from each other and disposed along a nominal axis of feed of the metal profile, generating with said transmission element an electromagnetic field with a desired profile of the force lines, and detecting a signal relating to the variations of said electromagnetic field due to the passage of said metal profile through said sections of said transmission element by means of a reception element having one or more sections distinct and spatially separated from each other and disposed along said nominal axis in a position of said transmission element.

Abstract: A device for the hot measuring, during rolling, of a transverse size of a metal profile (12) includes a transmission element with at least two sections distinct and spatially separated from each other and disposed along a nominal axis of feed of the metal profile, configured to generate an electromagnetic field with a desired profile of force lines, and a reception element disposed along the nominal axis in a position comprised in the overall longitudinal bulk of the transmission element and configured to detect a signal relating to the variations of the electromagnetic field due to the passage of the metal profile.

Abstract: Apparatus to heat and transfer mainly metal materials to a melting furnace (12), the apparatus comprising a transporter device (13) configured to move the materials continuously to the melting furnace (12), and at least an induction heating unit (28) associated with the transporter device (13) and configured to heat by electromagnetic induction the materials moved in the transporter device (13), keeping them in a solid state.

Abstract: Method and device to manage a coiler apparatus associated with a distributor, in which there is at least an exit of the feeder of hot or cold semi-worked metal products, and with a reel, both being respectively moved with suitable controlled movement and rotation means, able to manage the coiling obtaining coils with desired characteristics.

Abstract: An electric power apparatus for an electric arc furnace comprises at least one electrode and is connectable to a power network to supply to the electrode the electric energy to generate an electric arc to melt a metal mass. The apparatus comprises an electric regulation unit interposed and connected to the power network and to the electrode and configured to regulate at least one electric quantity for powering the electrode. The apparatus comprises at least one detection device to detect the electric quantity, interposed between the electrode and the electric regulation unit, a positioning device to move the at least one electrode nearer to/away from the metal mass to be melted and a control and command unit.

Abstract: An electric power apparatus for an electric arc furnace comprises at least one electrode and is connectable to a power network to supply to the electrode the electric energy to generate an electric arc to melt a metal mass. The apparatus comprises an electric regulation unit interposed and connected to the power network and to the electrode and configured to regulate at least one electric quantity for powering the electrode. The apparatus comprises at least one detection device to detect the electric quantity, interposed between the electrode and the electric regulation unit, a positioning device to move the at least one electrode nearer to/away from the metal mass to be melted and a control and command unit.

Abstract: Method and device (10) to manage a coiler apparatus (11) associated with a distributor (15), in which there is at least an exit of the feeder (21) of hot or cold semi-worked metal products, and with a reel (16), both being respectively moved with suitable controlled movement and rotation means, able to manage the coiling obtaining coils with desired characteristics.

Abstract: Apparatus to heat and transfer mainly metal materials to a melting furnace (12), the apparatus comprising a transporter device (13) configured to move the materials continuously to the melting furnace (12), and at least an induction heating unit (28) associated with the transporter device (13) and configured to heat by electromagnetic induction the materials moved in the transporter device (13), keeping them in a solid state.