ABSTRACT: In this article, the basic equations for mathematical modeling of the dynamic processes have been revised. The obtained equation allows defining the character of laws of changes in the managed variables, their derivatives and, as a result, the character of change of mode parameters of asynchronous engines at start-up, loss of energy, duration of process, complexity Regulatory law. The resulting expression establishes the relationship between dynamic indicators, machine and load parameters, and can be used to determine the dynamic properties of asynchronous motors.