Direct current device of being qualified for next round of competitions for transformer with stopper ring

Direct current device of being qualified for next round of competitions for transformer with stopper ring relates to transformer electrical insulation field. Be qualified for the next round of competitions the insulating shaping section of thick bamboo of device and easily drop for solving current direct current for the transformer, cause the inhomogeneous scheduling problem design of local electric field field intensity distribution. It includes the insulating cylinder of being made by insulating board, is equipped with an insulating shaping section of thick bamboo in the insulating cylinder, and the insulating cylinder outside is equipped with the insulation system who adopts a plurality of layers of corrugated container board and insulating board to constitute, and the outmost cover of going up of insulation system is equipped with a plurality of square ring, and the groove of playing supporting role when having a plurality of installation is opened to the square ring outward flange, and the rear end of in