METHOD FOR MANUFACTURING HIGH-VOLTAGE VACUUM BUSHING INSULATOR Russian patent published in 2015 - IPC H01B17/26 H01B19/00 

FIELD: electricity.

SUBSTANCE: insulator is assembled as dielectric sections identical in construction and geometric dimensions alternated with identical electroconductive graded rings, which are placed between two electrodes; a negatively charges cover of the insulator is used as one electrode while the earthed flange is used as the other electrode; at that the cover, the above sections, graded rings alternating with them and flange are tied up in one construction by means of dielectric ties and voltage between the above sections is distributed evenly by means of voltage divider; electroconductive graded rings are equipped with cylindrical electroconductive screens, which inner diameter is equal to inner diameter of the graded rings.

EFFECT: method allows more than double increase in electric strength of the construction at the same dimensions of insulators manufactured as per the claimed method in comparison with original method.

2 dwg