Panorama de la Gestión de Activos para Transformadores de Potencia

Abstract

Este artículo presenta una revisión general del marco conceptual relacionado con la gestión activos para transformadores de potencia y la evaluación del riesgo asociado a sus fallas. El índice de riesgo es una herramienta esencial para realizar la gestión de activos, especialmente porque apoya al gestor en el proceso de toma de decisiones. El índice de riesgo está compuesto por dos factores: i) el factor de consecuencia, que valora los impactos que se podrían presentar en caso de falla del equipo; y ii) la probabilidad de falla que se determina a partir de los resultados de las pruebas de funcionamiento, de la historia de la operación y del historial de fallas, entre otros aspectos. Se presentan aspectos generales relacionados con la gestión de activos según las normas internacionales, para luego tratar con mayor detalle aspectos específicos relacionados con la evaluación del índice de riesgo del transformador, encontrados en la literatura.

Analysis of Asset Management Models for a Transformer Fleet in the National Laboratory of Smart Grids (LAB+i)

“…• Consequence Factor: It is defined as an economic analysis, in which it is assumed that all assets will fail in the future. In this case, it is translated as a representation of operating costs and associated risks [8]. • Failure probability: Given the evaluation of the asset technical condition from diagnostic tests, health index, etc., it is bounded by the transformer modeling and its various subsystems, which are fully divided by the IEEE C57.140 standard [8].…”

“…In this case, it is translated as a representation of operating costs and associated risks [8]. • Failure probability: Given the evaluation of the asset technical condition from diagnostic tests, health index, etc., it is bounded by the transformer modeling and its various subsystems, which are fully divided by the IEEE C57.140 standard [8]. • Economic Lifetime: This is based on the analysis of the economic evaluation of device components, represented by the value of the assets, which is reduced over many years of use.…”

“…• 2 or more models: The articles performed the lifetime calculation from the measurement based on weighting methods or fuzzy logic approaches, categories that need data from various models [7], [8], [14].…”

Methodology for scheduling long‐term replacement of aging power transformers, considering risk

“…The consequence factor is obtained by analysis based on the assumption that all assets will fail in the future and the consequences of such a failure can be estimated. These consequences can be approached from different perspectives such as equipment safety, personnel safety, environmental safety, corporate image, consequences for production, and delays in the achievement of goals [6]. The probability of failure is a con-cept that merges the condition of the particular transformer unit and the external events that can trigger a final failure.…”