SYSTEM OF HIGH-VOLTAGE INSULATION AND METHOD OF SUCH SYSTEM MANUFACTURING Russian patent published in 2010 - IPC H01F27/04 

FIELD: electricity.

SUBSTANCE: system of high-voltage insulation for high voltage DC, comprising bushing (1) with conductor (2), connection (5) with conductor (4) of transformer and conducting protective electrode (7), protecting connection (5) between bushing and transformer, and also comprising a surrounding system of insulation submerged into transformer oil. Area of connection (5) of bushing conductor (1) with transformer conductor (4) is surrounded with cylindrical barrier (8) of large insulating material. On external side of conducting protective electrode (7) there are barriers (12) of solid insulating material fixed, which end at the distance from insulating material (3) of bushing and insulating material (6) of transformer, therefore, moderate voltage drop is achieved on barrier (12) of solid insulating material. System of insulation is designed for AC/DC voltage, exceeding 500 kV, preferably, 800 kV and up to 1000 kV. Method is also described for specified insulation system.

EFFECT: creation of improved insulation for high voltages.

7 cl, 1 dwg