Abstract: A lifting frame for lifting a transformer or reactor is provided that includes a frame wall section. The frame wall section extends within a frame wall section plane. A lifting opening is formed within the frame wall section, wherein a lifting opening axis is oriented normal with respect to the frame wall section plane. The frame wall section immediately surrounding the lifting opening has a thickness that increases with decreasing distance to the lifting opening axis. This construction allows for providing an edge of the lifting opening with a comparatively large surface or contact area, while avoiding an overdesign of the frame wall section thickness. An increase in the surface of the edge generally reduces a contact pressure.

Abstract: A transformer core, comprising a first yoke, a second yoke, a column (6) having a column main axis (8) and extending between the first yoke and the second yoke, and an elongate clamping structure (10) comprising an elongate rigid member (12) having a rigid member main axis (14) is provided. The column (6) includes an elongate opening (16) having an opening main axis (18) which is oriented transversal with respect to the column main axis (8). The rigid member (12) is positioned within the elongate opening (16) such that the rigid member main axis (14) is oriented parallel to the opening main axis (18).

Abstract: The present disclosure relates to a coil block for supporting at least one coil winding in an electrical transformer, wherein the at least one coil winding is arranged concentrically about a longitudinal axis, the coil block including: a first element having at least one supporting surface for contacting the at least one coil winding and a first clamping surface; and a second element having a fastening means and a second clamping surface for contacting the first clamping surface, wherein the fastening means restricts rotation of the coil block about an axis parallel to the longitudinal axis of the at least one coil winding, and wherein the first clamping surface is a recess configured for accepting the second element, wherein the recess extends in a radial direction perpendicular to the longitudinal axis such that rotation of the second element with respect to the first element is restricted.

Abstract: A transformer support structure for mounting a transformer assembly includes a bottom element having a support surface with a horizontal orientation including two longitudinal side edges which delimit the support surface. The longitudinal side edges run parallel to each other in a y-direction. A cross bar is supported on the support surface and runs crosswise to the longitudinal side edges. At least two reinforcement units for reinforcing the cross bar extend over an outer front surface of the cross bar in a vertical direction. The reinforcement units are positioned above the longitudinal side edges and are aligned with the longitudinal side edges.