The scientific aim of the monograph is to research the transient processes by application of software support, with the function of self-diagnosis and correction of the elements of power system operation in the real time mode. A working model of the elements of power system on the conditions of transient process, when the voltage character and current determine the maximum number of parameter wingdings and magnetic circuit, can provide multiple answers in relation to the known models in the literature. The knowledge about transient conditions that occur in transformers is equally important for the transformer's work and for the supporting equipment functioning...