Discussion on the main transformer protection starting the failure of current circuit

This paper starts malfunctioning transformer protection to the current criterion for research orientation of the object,for example of the method of transformers in different locations in the vicinity of the short-circuit fault,the use of CT transformer bushing of the current transformer protection as the start of the current failure criteria for the practice of protection may lead to miss trip or maloperation for the design department and the peer experts to discuss.Finally,at the actual CT secondary windings,this paper proposes rectification to achieve the purpose of regulating circuit wiring.