Two Ways of Acquisition of Experimental Results of an Induction Machine

In this current paper a consideration of two ways of getting experimental results of an induction machine (IM) rotor parameters (rotor current and rotor resistance) is given. The first way is experimental results based on standard IEC 60034-28:2012 [1] and the second way is experimental results gained from direct rotor current and resistance measurements. As an experiment object IM with wound rotor is chosen but results are mandatory also to squirrel-cage-rotor (SCR) IMs. Results of these two ways demonstrate that the first way is unsuitable when gathering precise rotor current and rotor resistance values. However regarding to frequency control these parameters are well enough calculated.