RETAINING DEVICE FOR TRANSFORMER WINDING WITH CAST INSULATION Russian patent published in 2013 - IPC H01F27/30 H01F27/32 H01F27/26 

FIELD: electricity.

SUBSTANCE: retaining device for a transformer winding with cast insulation comprises a support element and a receiving element installed on a coupling bolt. Due to fixation of the support element on the receiving element installed on the coupling bolt, the transformer winding may be fixed motionlessly and with accurate alignment relative to the transformer core. Due to installation of the receiving element directly on the coupling bolt, air circulation is provided in the lower zone of the transformer winding with cast insulation, accordingly, of an insulating cylinder installed on the support element, and thus thermal properties are improved. Besides, due to the possibility of connection of the receiving element on the coupling bolt with the support element the modular and thus simple design of the transformer with cast insulation is achieved.

EFFECT: simplified assembly without impact at air circulation between an inner side of a winding and a transformer core.

5 cl, 5 dwg