Auxiliary chamber electricity checking device for vacuum circuit breakers of high-voltage switch cabinet

The invention relates to the technical field of the detection of electrical equipment and discloses an auxiliary device for the high-voltage electricity checking of vacuum circuit breakers. The auxiliary electricity checking device comprises a box body and a bracket, wherein supporting plates are respectively arranged on two opposite side walls of the box body, a pulley is arranged at the bottom of the box body, the bottoms of the supporting plates are connected with the top surface of the pulley, the pulley is in contact with the top surface of the bracket, holes which are matched with the number and locations of contacts of the vacuum circuit breakers are formed in the other two opposite side walls of the box body, each guide tube of an electroscope penetrates through the two opposite holes, and valve opening devices are respectively arranged on the outer sides of the supporting plates. When the auxiliary electricity checking device disclosed by the invention is used, operation staff can successively monitor electricity checking instructions of two different principles, the requirements of relative electricity checking in the national standard and the industrial standard can be satisfied so as to complete the non-electricity confirming work of the circuit breakers, and the stipulations and requirements for electricity checking can be mutually verified. The auxiliary electricity checking device disclosed by the invention is simple in structure, safe and reliable, and the potential risk existing during the electricity checking of the vacuum circuit breakers of the high-voltage switch cabinet is eliminated.