Abstract: An electromagnetic induction device comprising a magnetic core having a limb and at least one winding wound around the limb is presented. The winding comprises: an electrical conductor forming a plurality of radially overlapping layers around an axis; an electrically insulating material positioned between the radially overlapping layers of the electrical conductor; at least one magnetic material end-fill positioned at at least one axial end of the winding in electrical in contact with the layers of the electrical conductor so to be at the same electrical potential with the latter.

Abstract: A core arrangement for a transformer is disclosed. The core arrangement comprises a plurality of core sheets. The core sheets have a thickness in the interval of 0.18-0.3 mm. The core sheets are attached to each other by means of an adhesive substance to make the core arrangement self-supporting.

Abstract: A winding is provided, which comprises a form element having a longitudinal axis defining a longitudinal direction and a radial direction perpendicular to the longitudinal axis. The form element comprises a core with a lateral surface, and adjustable elements arranged on the lateral surface of the core. The adjustable elements are elongated and extend along the longitudinal direction. A thickness of the adjustable elements in a radial direction is altered along the longitudinal direction. A conductor is wound around the form element along the longitudinal direction forming turns of the winding.

Abstract: A support for mounting an accessory equipment assembly with one or more accessory equipment units, such as current transformer units, to a base of a bushing includes a conductor surrounded by an insulator part such that each of the accessory equipment units is positioned in a defined way regarding the conductor, wherein said support includes aligning means for aligning each individual accessory equipment unit separately with respect to the conductor. A corresponding accessory equipment module includes an accessory equipment assembly with one or more accessory equipment units, such as current transformer units, and a support for mounting the accessory equipment assembly as well as a bushing unit including a bushing and said kind of accessory equipment module.

Abstract: A winding arrangement for a transformer includes a plurality of stabilising elements, a winding block, a top end press element and a bottom end press element. The top end press element is arranged on a top end of the winding block and the bottom end press element is arranged on a bottom end of the winding block. The plurality of stabilising elements are arranged to make the winding arrangement self-supporting and isolated from short circuit forces, wherein the at least one stabilising element comprises any one out of: at least one insulated tie-rod made of fibre glass or plastic, arranged between the top end press element and the bottom end press element and at least one insulated band arranged around the winding block, the top end press element and the bottom end press element.

Abstract: A support for mounting an accessory equipment assembly with one or more accessory equipment units, such as current transformer units, to a base of a bushing includes a conductor surrounded by an insulator part such that each of the accessory equipment units is positioned in a defined way regarding the conductor, wherein said support includes aligning means for aligning each individual accessory equipment unit separately with respect to the conductor. A corresponding accessory equipment module includes an accessory equipment assembly with one or more accessory equipment units such as current transformer units, and a support for mounting the accessory equipment assembly as well as a bushing unit including a bushing and said kind of accessory equipment module.

Abstract: A spacer tape is provided for spacing apart turns of a winding, which comprises a tape having an upper surface, a lower surface and a longitudinal axis, wherein the lower surface is adhesable and configured to be adhered to a conductor forming a turn of the winding, and spacers with an upper surface and a lower surface arranged on the tape, wherein the lower surface of the spacers is adhered to the upper surface of the tape, and wherein the upper surface of the spacers are adhesable and configured to be adhered to the conductor forming an adjacent turn of the winding.

Abstract: A winding is provided, which comprises a form element having a longitudinal axis defining a longitudinal direction and a radial direction perpendicular to the longitudinal axis. The form element comprises a core with a lateral surface, and adjustable elements arranged on the lateral surface of the core. The adjustable elements are elongated and extend along the longitudinal direction. A thickness of the adjustable elements in a radial direction is altered along the longitudinal direction. A conductor is wound around the form element along the longitudinal direction forming turns of the winding.

Abstract: A method for manufacturing an electric winding of an electromagnetic induction apparatus includes providing a conductor structure and forming an electric winding by means of the conductor structure. The conductor structure includes a conductor element extending longitudinally along a main extension direction and one or more spacer bands arranged on corresponding lateral surfaces of the conductor element. Each spacer band includes a supporting structure made of electrically insulating material and spacer elements made of electrically insulating material arranged on the supporting structure. The spacer elements are spaced one from another along the supporting structure. The electric winding extends axially along a winding direction and has a plurality of turns arranged around the winding direction. Each turn of the electric winding is formed by a corresponding longitudinal portion of the conductor element.

Abstract: A method for manufacturing an electric winding of an electromagnetic induction apparatus includes providing a conductor structure including a conductor element extending longitudinally along a main extension direction and one or more spacer tapes of electrically insulating material around said conductor element along said main extension direction, each spacer tape having spacer portions at corresponding lateral surfaces of said conductor element and spaced one from another along the lateral surfaces. The method includes forming an electric winding extending axially along a winding direction and having a plurality of turns arranged around said winding direction where each turn is formed by a corresponding longitudinal portion of said conductor element.

Abstract: A method for manufacturing an electric winding of an electromagnetic induction apparatus includes providing a conductor structure and forming an electric winding by means of the conductor structure. The conductor structure includes a conductor element extending longitudinally along a main extension direction and one or more spacer bands arranged on corresponding lateral surfaces of the conductor element. Each spacer band includes a supporting structure made of electrically insulating material and spacer elements made of electrically insulating material arranged on the supporting structure. The spacer elements are spaced one from another along the supporting structure. The electric winding extends axially along a winding direction and has a plurality of turns arranged around the winding direction. Each turn of the electric winding is formed by a corresponding longitudinal portion of the conductor element.

Abstract: A continuously transposed cable CTC, extending according to a longitudinal development direction (L) and having two opposite longitudinal ends, includes a plurality of strands arranged so to form at least a first and a second adjacent stacks, each extending along the longitudinal development direction (L), wherein said at least first and second stacks form a longitudinal interface therebetween. The CTC cable (1) further includes one or more optical fibers positioned at the interface between the first and the second stacks. A winding of an electromagnetic induction device, such as a transformer, can be obtained by winding said CTC cable.

Abstract: An electromagnetic induction device comprises comprising a magnetic core having a limb and at least one winding wound around the limb is presented. The winding comprises: an electrical conductor forming a plurality of radially overlapping layers around an axis; an electrically insulating material positioned between the radially overlapping layers of the electrical conductor; at least one magnetic material end-fill positioned at at least one axial end of the winding in electrical in contact with the layers of the electrical conductor so to be at the same electrical potential with the latter.

Abstract: The present application relates to a magnetic shunt assembly for magnetic shielding of a power device, in one form for an electrical power transformer, including a plurality of joined ferromagnetic sheets and a plurality of bonding layers for bonding subsequent sheets of the plurality of ferromagnetic sheets to form an integral assembly.

Abstract: The present application relates to a magnetic shunt assembly for magnetic shielding of a power device, in one form for an electrical power transformer, including a plurality of joined ferromagnetic sheets and a plurality of bonding layers for bonding subsequent sheets of the plurality of ferromagnetic sheets to form an integral assembly.