Abstract:Aiming at power accidents caused in the operation process of high voltage switch cabinet maintenance,a new misoperation preventing device based on the technologies of electrical measuring and mechanical locking is introduced.Firstly,the electrification states in monitoring circuit of high voltage switch cabinet are measured by the sensors based on the principle of electromagnetic induction.Then the mechanical device is controlled by the state of electrification states in high voltage switch cabinet.The implementation of this project will greatly reduce misoperation power failure of the high voltage switch cabinet.In addition,the whole device also has the characteristics of high reliability and convenient installation.