Transformer fault guiding method and system

The invention provides a transformer fault guiding method and system. The method comprises the steps that when a guiding demand instruction sent by a user is received, acquiring a demand identifier stored in the guiding demand instruction; when the demand identifier is a fault tree display identifier, performing image query according to the demand identifier, and correspondingly displaying a faulttree image according to a query result; when the demand identifier is a fault symptom query identifier, performing symptom query according to the demand identifier, and correspondingly displaying fault symptom information according to a query result; and when the demand identifier is a maintenance guidance identifier, performing guidance query according to the demand identifier, and correspondingly displaying maintenance guidance information according to a query result. Through the design of displaying the fault tree image, a user can conveniently understand the relation among the fault reason, the fault phenomenon a