In this paper, a comparative study among various fault detection techniques used for induction
motors with stator winding turn fault is presented. In these techniques the three-phase voltage and
current waveforms at the terminal of the motor are used to extract the fault signature. This study is
based on simulating the faulty motor on phase (abc) fiame. The effect of load, fault resistance, and
fault location "faulty turns percentage" on the accuracy of fault detector determination are
investigated. Also, the imperfections existed in motor and voltage source unbalance are studied
and corrected to cancel their effects on fault signature. Applicability of each of the techniques to
on-line use is examined. The results revealed the most appropriate technique among the compared
fault detection techniques.