Browsing by Author "Chiliquinga Sampedro, Kevin Israel"

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    Análisis de gases disueltos para la identificación de falla en transformadores de potencia mediante lógica difusa
    (Ecuador: Latacunga: Universidad Técnica de Cotopaxi: (UTC), 2024-08) Chiliquinga Sampedro, Kevin Israel; Castillo Fiallos, Jessica Nataly
    This research focuses on the identification of thermal and electrical faults in the power transformer, which are the core of the substation and operate continuously. The diagnosis of faults in the electrical converter represents a challenge, since traditionally it is necessary to interrupt its operation to detect internal anomalies. To avoid these interruptions, the most effective way to predict failures without shutting down the equipment is by analyzing the degradation of the dielectric oil, this process produces gases such as hydrogen, methane, ethylene, acetylene and ethane, whose concentrations are key indicators of possible failures. The identification of faults in the stationary machine is carried out by gas analysis using the Rogers method or the IEC method, unified with fuzzy logic, becomes a predictive maintenance tool allowing to detect faults accurately and correct them in the short term, this facilitates the direct intervention of maintenance personnel in specific problems such as moisture in the insulating paper, defective welds, short circuits between windings or overheating. Once the fault is identified, the maintenance personnel can be adequately prepared with the necessary materials, equipment and tools, which significantly reduces transformer downtime.