There is ratios estimate accuracy for determining the electromagnetic parameters of submersible asynchronous electric motors (SEM) of electric submersible pumps (ESPs) installations directly on the stator current damping curve i 1 (t) recorded from a stationary rotor. Software efficiency was checked up, as it is necessary for its implementation by means of a mobile unit carrying out SEM identification in terms of electro repair shops or on the multiple well platforms surface. Test transient respond software processing error does not exceed 1.5% The discrepancy of 5% was obtained for T 3 sub transient time constant. SEM basic electromagnetic parameters error determining was obtained not more than 6.2%.