Influence of Equivalent Circuit Resistances on Operating Parameters on Three-Phase Induction Motors with Powers up to 50 kW

This work shows the results obtained from studying influence of equivalent circuit resistances on three-phase induction motors. The stator resistance, rotor and iron losses resistance affect different motor operating variables (output power, current, speed, power factor, starting ratios, maximum torque). These influences have been quantified, paying particular attention to affected their impact efficiency. study carried out does not apply optimization techniques. It evaluates circuit’s its operation by evaluating applicable constructive modifications concerning available has limited motors up 50 kW low voltage, with nominal powers selected being 0.25 kW, 1.5 7.5 22 45 kW. tools used carry are analyzing simulation electromagnetic structure using a finite-element program. variations proposed in each for all studied is purely theoretical, as it based applying feasible modifications, appropriately analyzed simulated. variation conductor diameter coils, change section cage, selection ferromagnetic steel types.