METHOD OF IMPREGNATING MICA PAPER CAPACITORS Russian patent published in 2014 - IPC H01G4/00 

FIELD: electricity.

SUBSTANCE: method includes pressing, placing an impregnating compound in the first area of a vacuum assembly, placing containers with mica paper capacitors in the second area of the vacuum assembly, heat-insulating the first and second areas of the vacuum assembly from each other, vacuum drying the containers with the mica paper capacitors, drying the impregnating compound, filling the containers with mica paper capacitors with the impregnating compound by pouring from the first into the second area of the vacuum assembly, impregnation at atmospheric pressure, heat treatment in steps, wherein the first area of the vacuum assembly is located over the second area of the vacuum assembly, after vacuum drying the containers with mica paper capacitors, lowering the temperature in the second area of the vacuum assembly to temperature for drying the impregnating compound of 95±5°C, simultaneously vacuum drying the impregnating compound in the first area of the vacuum assembly at temperature of 95±5°C.

EFFECT: high reliability of mica paper capacitors.

4 cl, 2 dwg