FIELD: engines and pumps.
SUBSTANCE: proposed device comprises induction motor to be tested, stator phase voltage transducers, rotor phase current transducers, angular acceleration transducer, shaft rpm transducer, stator phase voltage and phase current converter to allow converting stator phase voltages and currents into those of generalised electric machine, differentiators, multipliers, integrators, dividers and adders. In compliance with this invention, device incorporates additionally external signal of orthogonal coordinate system rotational speed, three transducers of stator phase voltage, three transducers of stator phase current, two differentiators, twenty two adders, fifty multipliers, two dividers and nine integrators.
EFFECT: increased number of estimated parameters.
11 dwg
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