An improved risk management model for a fleet power transformer through reliability asset condition and probability of failure using weibull analysis

In transmission and distribution systems, power transformers play a critical role in ensuring a reliable supply of electrical energy. Due to the significant disruptions that transformer failures can cause to the electrical grid, it is imperative to maintain these assets in optimal operating conditions and extend their service life to the greatest extent possible. In this context, the implementation of a risk-based maintenance strategy is crucial for ensuring the reliability and availability of critical assets, taking into account the probability of failures and their consequences. Traditional statistical distributions for estimating the probability of transformer failure rely on generic models that often fail to reflect the operational stresses of the assets. For power transformers, some…