A frequency-based determination of transient inductance and rotor resistance for field commissioning purposes

The paper presents a deterministic method of estimating the transient inductance and rotor resistance of an induction machine for field commissioning purposes. The parameter values obtained by the method are compared with those for a transient method of commissioning. Skin effects inherent with the transient test are documented. Experimental results for a wide range of machine sizes are included for both methods. The quality of field orientation is established for each method through experimental testing.