Fault analysis aproach applied in hidroelectric plants
DOI:
https://doi.org/10.33304/revinv.v13n1-2019006Keywords:
Mobile blades, bushings, seal, screw, ACR.Abstract
In this paper, the different root cause analysis (ACR) methodologies referenced in the literature were described and each step of the PROACT methodology are presented in detail used to analyze the failure that was presented in the mobile blades of the Francis turbines in the hydroelectric of Alto Anchicaya. According to Empresa de Energía del Pacífico - EPSA criteria, this type of failure, because it is complex in a generation plant, requires a priority level of intervention, for this reason, this failure was analyzed using the Proact Suite V 4 software as a tool to facilitate the follow-up of the steps of the methodology and systematize and standardize the different failure analyzes that have occurred in their different generation plants. As a result of this methodology, three elements of the turbine involved in the fault were determined: Intermediate bushings, Asparagus and Packs, this identification allowed to establish corrective measures to reduce its occurrence. The main cause was located in the intermediate bushings of the mobile blade and determined that the material of the bushings that best fits the working conditions of the blades are the D-glide bushings.Downloads
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