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The negative sequence impedance as fault indicator in induction motors

2013; Universidad de Antioquia; Issue: 51 Linguagem: Inglês

10.17533/udea.redin.14819

2422-2844

Fernando Villada, Diego Raúl Cadavid, José Édinson Aedo, Bernardo Andrés Benavides, Esteban Velilla,

Non-Destructive Testing Techniques

An algorithm to detect inter-turn faults in induction motors based on the negative sequence impedance is presented in this paper. The implementation through a digital prototype is also explained and its results are tested using a 3 Hp induction motor designed to induce inter-turn faults. It is concluded that the robustness of the algorithm can detect incipient faults from five turns, and it is a good tool for predictive maintenance of induction motors.