In view of frequent failure of closing operation of outdoor HV disconnector due to the action of such external forces as external environment

a kind of new type of anti-interference high voltage disconnector is designed. Firstly

through the analysis of the structure and working principle of the traditional three column horizontal rotating high voltage disconnector

the reason for the early rolling over of the conductive rod during the closing operation of the high-voltage disconnector is obtained. Then

the design scheme of the anti-interference disconnector and the set up of the three-dimensional geometric model are given in combination with the motion characteristics of the sheave clearance mechanism and the four linkage damping mechanism. Finally

the installation position of the spring in the four linkage damping mechanism is determined by numerical simulation

and the design target requirements are verified. The results show that the structure can effectively solve the interference of external force on the conductive rod of traditional high voltage disconnector

and can provide a reference evidence for the optimal design of structure of disconnector.