Objective is to get the substantiation of carrying out the identification procedure of induction motor equivalent circuit parameters when the rotor is stationary. Methods for describing of electromagnetic processes known from the theory of electrical machines and method for solving of nonlinear equations systems are used. Expressions are obtained that allow to determine the parameters of the induction motor equivalent circuit and use as an input the experimental data of AC and DC asymmetric supply of stator. A method is proposed which allows to identify the parameters of the equivalent circuit of squirrel cage induction motor with stationary rotor. For this purpose DC and AC power supply are used. Proposed expressions can serve as a basis for the development of algorithms and software for microprocessor systems of AC drives with induction motors for the identification of equivalent circuit parameters