Vacuum circuit breaker electrical test auxiliary device and assembly test method thereof

The invention belongs to the technical field of nuclear power, and particularly relates to a vacuum circuit breaker electrical test auxiliary device and an assembly test method thereof. According to the invention, after the scroll spring extends out of the plum blossom contact finger surrounding the circuit breaker by rotating the rotating body, the positioning pin is pushed into the insulating box, so that the scroll spring is in contact with the plum blossom contact finger of the circuit breaker, and the other end of the rotating body is used for connecting an electrical test wire. The auxiliary device disclosed by the invention can meet the fixing requirement of the test wire clamp for the electrical test of the VD4 vacuum circuit breaker according to the actual situation; the risks that the silvered surface of the plum blossom contact finger of the VD4 vacuum circuit breaker is damaged and the fastening spring of the plum blossom contact finger is loosened can be effectively prevented; the workload of hum