METHOD OF MANUFACTURE OF STABLE CAPACITOR WITH DIELECTRIC FROM POLYPROPYLENE FILM Russian patent published in 2008 - IPC H01G4/32 H01G2/02 

FIELD: electricity.

SUBSTANCE: method of manufacture of capacitor with dielectric from polypropylene film includes spiral winding of film dielectric and foil windings of section onto carcass made of composite material with temperature coefficient of expansion that is lower than the coefficient of polypropylene film temperature expansion, then subsequently baking and curing operations are carried out, after that capacitor sections are installed in casing, sealed and subjected to heat cycling, at that baking operation is performed by capacitor heating with fixed rate up to the temperature of (135±2)°C, maintained at this temperature for two hours, then slowly cooled down to room temperature, operation of capacitor curing is carried out by cyclical effect of temperatures from -60°C to +85°C, and operation of heat cycling is performed by means of multiple cyclic effect of temperatures from -60°C to +65°C.

EFFECT: increase of capacitor characteristics stability.

2 cl, 1 dwg