Badania uszkodzeń uzwojenia stojana klatkowego silnika indukcyjnego

Phenomena associated with inter-turn short-circuit in stator winding of squirrel-cage motor were investigated. Investigations were realized with field-circuit mathematical model and physical model of motor. Short-circuit happens when motor is working with nominal load. Based on this assumption time characteristics of stator phase currents, currents in short-circuited turns and instantaneous power of motor, were calculated. Two causes were investigated: short-circuit of four turns and whole coil (51 turns). Influence of resistance value in short-circuited point on electromechanical phenomena was investigated too.