A system includes: a housing that defines an interior configured to receive an electrically insulating fluid; a transformer including an electrically conductive coil assembly in the interior; a switching assembly in the interior, the switching assembly including: an input side; an output side; and a switch device that electrically connects the input side and the output side in a closed state and electrically isolates the input side and the output side in an opened state; a connection assembly that passes through the housing; a flexible electrical connection that electrically connects the connection assembly and the input side of the switching assembly; a rigid electrically conductive bus electrically connected to the output side of the switching assembly; and electrically conductive cable electrically connected to the rigid electrically conductive bus and the transformer.

The disclosure relates to a transformer arrangement comprising a transformer which comprises at least one phase winding. The phase winding has coil turns around a coil axis. The transformer arrangement further comprises a transformer tank having walls forming an enclosure in which the transformer is arranged. The enclosure contains an incompressible medium in which the transformer is immersed. A screen is arranged in the transformer tank, between the walls of the transformer tank and the at least one phase winding of the transformer. The screen has an inner, transformer-facing, surface and an outer, wall-facing, surface. The transformer tank has a first wall extending transversely to a first axis adjacent to a first end of the transformer and an opposite second wall extending transversely to the first axis, adjacent to a second end of the transformer.