TRANSFORMER BUSHING Russian patent published in 2023 - IPC H01F27/32 H01F27/29 

FIELD: electrical engineering.

SUBSTANCE: transformer bushing comprises an insulating pipe provided in the form of a hollow structure in the axial direction, as well as a capacitor core. The capacitor core comprises a current-carrying rod extending through the insulating pipe, a multilayer insulating layer and a multilayer capacitor panel placed in the insulating pipe and wound successively outside of the current-carrying rod. An end of the current-carrying rod protrudes from the insulating pipe and is rigidly and electrically connected to the first terminal. The transformer bushing comprises a transformer bushing lead electrically connected to the end panel in the capacitor core to provide grounding of the end panel during operation of the transformer bushing. The bushing also comprises an oil conservator attached to the end of the insulating pipe and in communication with the insulating pipe. The end of the current-carrying rod passes through the oil conservator from the insulating pipe and is rigidly connected to the first terminal located outside of the oil conservator. The bushing also comprises a first end cap covering the other end of the current-carrying rod protruding from the insulating pipe. A side of the first end cap is distanced from the current-carrying rod and is attached to the second terminal linked with the inner terminals of the transformer, so that the current-carrying rod is electrically connected to the inner terminals of the transformer.

EFFECT: structural simplification and higher efficiency of using the transformer bushing.

11 cl, 11 dwg