Abstract: A winding fixing device and method for a hollow-cylindrical high-voltage winding are disclosed, wherein the winding fixing device includes a pillar-like element having two axial ends, each of the two axial ends being configured to be connected to a respective retaining element which is arranged transversely with respect thereto. Each of the retaining elements is configured to be movable along the pillar-like element and detachable therefrom. A positioning region for arranging a hollow-cylindrical high-voltage winding is formed between the retaining elements, and spacing elements are configured to move axially along the pillar-like element. The spacing elements are configured to radially fix the hollow-cylindrical high-voltage winding when placed between the retaining elements by applying a tensile force to the retaining elements.

Abstract: An exemplary oil transformer insulation module includes at least a first flat layer and a second layer adjacent and substantially and parallel to the first layer. The first and second layers include planar first insulation material and are connected to and spaced apart from a third corrugated layer that is arranged between the first and second layers. The third layer includes planar second insulation material, has lateral edges, and is corrugated such that all the cavities formed by the corrugated form can be flooded with a liquid via the lateral edges.

Abstract: An oil-filled transformer switching frame is disclosed which includes at least one longitudinal channel element that is essentially formed by a wall that is curved in a U-shaped manner, for receiving in its inner region stranded conductors of an oil tank of an oil transformer. The wall of the channel element can include a first layer of mechanically strong, planar insulating material and a second layer of mechanically strong, planar insulating material that is adjacent to and fundamentally parallel to said first layer, the first layer and the second layer being connected to and spaced apart by a third layer of a mechanically strong, corrugated insulating material having hollow spaces that can be flooded with a fluid by way of lateral edges.

Abstract: An oil-filled transformer switching frame is disclosed which includes at least one longitudinal channel element that is essentially formed by a wall that is curved in a U-shaped manner, for receiving in its inner region stranded conductors of an oil tank of an oil transformer. The wall of the channel element can include a first layer of mechanically strong, planar insulating material and a second layer of mechanically strong, planar insulating material that is adjacent to and fundamentally parallel to said first layer, the first layer and the second layer being connected to and spaced apart by a third layer of a mechanically strong, corrugated insulating material having hollow spaces that can be flooded with a fluid by way of lateral edges.

Abstract: An exemplary oil transformer insulation module includes at least a first flat layer and a second layer adjacent and substantially and parallel to the first layer. The first and second layers include planar first insulation material and are connected to and spaced apart from a third corrugated layer that is arranged between the first and second layers. The third layer includes planar second insulation material, has lateral edges, and is corrugated such that all the cavities formed by the corrugated form can be flooded with a liquid via the lateral edges.

Abstract: An oil transformer includes a transformer vessel, a transformer core mounted in the vessel, at least one upright hollow cylindrical transformer coil including at least one axial cooling channel arranged around a limb of the transformer core, and an oil chamber arranged at an axial front side of the transformer coil. At least one first opening leading from the inner chamber to the belonging front side of the transformer coil is provided, and at least one second opening is provided within the surrounding boundaries of the oil chamber. The oil chamber is an under-pressure chamber, wherein the at least one first opening is an inlet port and the at least one second opening is an outlet port.

Abstract: A winding fixing device and method for a hollow-cylindrical high-voltage winding are disclosed, wherein the winding fixing device includes a pillar-like element having two axial ends, each of the two axial ends being configured to be connected to a respective retaining element which is arranged transversely with respect thereto. Each of the retaining elements is configured to be movable along the pillar-like element and detachable therefrom. A positioning region for arranging a hollow-cylindrical high-voltage winding is formed between the retaining elements, and spacing elements are configured to move axially along the pillar-like element. The spacing elements are configured to radially fix the hollow-cylindrical high-voltage winding when placed between the retaining elements by applying a tensile force to the retaining elements.

Abstract: The disclosure relates to a spherical cap for a high-voltage outgoing line, including an electrically conductive element, which is arranged hollow-cylindrically about a rotational axis and which merges into a hemispherical form at its first axial end. A connection device has a passage opening for electrically and mechanically connecting the element, to an electrical screening pipe. At least two insulation barriers are spaced apart from one another and respectively adapted to the form of the hollow-cylindrical element and enclose the latter at a respective first and second distance. The insulation barriers respectively have a pipe attachment connector for leading through a screening pipe to the connection device. The first insulation barrier is spaced apart from the second insulation barrier by at least one insulation ring which is arranged about the rotational axis and which has a radially fashioned corrugated form.

Abstract: The disclosure relates to a spherical cap for a high-voltage outgoing line, including an electrically conductive element, which is arranged hollow-cylindrically about a rotational axis and which merges into a hemispherical form at its first axial end. A connection device has a passage opening for electrically and mechanically connecting the element, to an electrical screening pipe. At least two insulation barriers are spaced apart from one another and respectively adapted to the form of the hollow-cylindrical element and enclose the latter at a respective first and second distance. The insulation barriers respectively have a pipe attachment connector for leading through a screening pipe to the connection device. The connection device has a first part for connection to a screening pipe and a second part connected to the conductive element and a connection adjustable in a force-locking manner is provided between the first and second parts.

Abstract: A transport housing for a coil or a coil block, having an upper and a lower pressing plate, wherein the coil or the coil block is arranged between the two pressing plates and the latter can be braced against each other by a plurality of tension rods in the manner of an axial tension configuration. A frame enclosing the coil or the coil block to which a membrane, movable both toward the inner chamber of the transport housing and toward the outside, is fastened and having an outer housing which provides mechanical protection for the membrane and enables unhindered or allows movement of the membrane to the outside.

Abstract: An oil transformer insulation module includes a plurality of disc-like insulation elements of identical type which are arranged flush one above another along a line, connected to one another and have in each case at least a similar outline contour. An insulation element includes a first flat layer and a second layer adjacent and predominantly parallel thereto. The first and second layers are composed of a mechanically strong, planar first insulation material. The first and second layers of the first insulation material are connected to and spaced apart from a third, corrugated layer arranged between the first and second layers and composed of a mechanically strong, planar second insulation material. The third layer has lateral edges and is corrugated in such a way that all the cavities formed by the corrugated form can be completely flooded with a liquid via the lateral edges of the insulation element.

Abstract: A transport housing for a coil or a coil block, having an upper and a lower pressing plate, wherein the coil or the coil block is arranged between the two pressing plates and the latter can be braced against each other by a plurality of tension rods in the manner of an axial tension configuration. A frame enclosing the coil or the coil block to which a membrane, movable both toward the inner chamber of the transport housing and toward the outside, is fastened and having an outer housing which provides mechanical protection for the membrane and enables unhindered or allows movement of the membrane to the outside.

Abstract: A lead-out tube for high-voltage transformers is disclosed along with a method of manufacturing a lead-out tube. The lead-out tube can include a shielding tube of an electrically conductive material which extends a hollow-cylindrically around an at least sectionally curved path in an axial direction. A hollow-cylindrical shaped electrical insulating layer can be arranged at a first radial distance around the shielding tube along the axial extent. Sectionally flexible strips can be arranged along the at least sectionally curved path adjacent to one another at a second radial distance around the shielding tube. The insulating layer can be wound from a tape-like insulating material around the sectionally flexible strips.

Abstract: A lead-out tube for high-voltage transformers is disclosed along with a method of manufacturing a lead-out tube. The lead-out tube can include a shielding tube of an electrically conductive material which extends a hollow-cylindrically around an at least sectionally curved path in an axial direction. A hollow-cylindrical shaped electrical insulating layer can be arranged at a first radial distance around the shielding tube along the axial extent. Sectionally flexible strips can be arranged along the at least sectionally curved path adjacent to one another at a second radial distance around the shielding tube. The insulating layer can be wound from a tape-like insulating material around the sectionally flexible strips.

Abstract: A holder is provided for high-voltage end leads in oil transformers. The holder includes a plate-like, elongated basic insulation module which has two planar outer sides and a connecting device at its first end and an accommodating device for a transversely running a screen tube in the region of its second end. The basic insulation module is angled between the first end and the second end, such that a shorter side edge and an opposite longer side edge is formed. A plurality of adjacent slots are provided transversely to the elongated extent of the basic insulation module, where the slots encircle the latter at its planar outer sides and at the shorter side edge in a respective plane. At least one U-shaped insulation plate is fitted into one of the slots in a positive-locking manner.

Abstract: The disclosure relates to a spherical cap for a high-voltage outgoing line, including an electrically conductive element, which is arranged hollow-cylindrically about a rotational axis and which merges into a hemispherical form at its first axial end. A connection device has a passage opening for electrically and mechanically connecting the element, to an electrical screening pipe. At least two insulation barriers are spaced apart from one another and respectively adapted to the form of the hollow-cylindrical element and enclose the latter at a respective first and second distance. The insulation barriers respectively have a pipe attachment connector for leading through a screening pipe to the connection device. The connection device has a first part for connection to a screening pipe and a second part connected to the conductive element and a connection adjustable in a force-locking manner is provided between the first and second parts.

Abstract: An exemplary oil transformer insulation module includes at least a first flat layer and a second layer adjacent and substantially and parallel to the first layer. The first and second layers include planar first insulation material and are connected to and spaced apart from a third corrugated layer that is arranged between the first and second layers. The third layer includes planar second insulation material, has lateral edges, and is corrugated such that all the cavities formed by the corrugated form can be flooded with a liquid via the lateral edges.

Abstract: The disclosure relates to a spherical cap for a high-voltage outgoing line, including an electrically conductive element, which is arranged hollow-cylindrically about a rotational axis and which merges into a hemispherical form at its first axial end. A connection device has a passage opening for electrically and mechanically connecting the element, to an electrical screening pipe. At least two insulation barriers are spaced apart from one another and respectively adapted to the form of the hollow-cylindrical element and enclose the latter at a respective first and second distance. The insulation barriers respectively have a pipe attachment connector for leading through a screening pipe to the connection device. The first insulation barrier is spaced apart from the second insulation barrier by at least one insulation ring which is arranged about the rotational axis and which has a radially fashioned corrugated form.

Abstract: An oil transformer insulation module includes a plurality of disc-like insulation elements of identical type which are arranged flush one above another along a line, connected to one another and have in each case at least a similar outline contour. An insulation element includes a first flat layer and a second layer adjacent and predominantly parallel thereto. The first and second layers are composed of a mechanically strong, planar first insulation material. The first and second layers of the first insulation material are connected to and spaced apart from a third, corrugated layer arranged between the first and second layers and composed of a mechanically strong, planar second insulation material. The third layer has lateral edges and is corrugated in such a way that all the cavities formed by the corrugated form can be completely flooded with a liquid via the lateral edges of the insulation element.