Research on transformer residual life evaluation model technology

Power transformer is the key equipment of power system. As a bridge between power plant and users, its reliability directly affects the stability and efficiency of power grid. Understanding its health status during operation and making a reasonable maintenance or decommissioning plan are essential to improve economic benefits. Due to the uncertainty of the evaluation factors of transformer operation, this paper uses uncertainty theory to deal with the influence of factors such as environment, maintenance and quality, and analyzes the change trend of transformer life cycle and reliability. This helps to guide the inspection, maintenance and renewal of electrical equipment, improve system reliability, reduce failure rate, and maximize equipment utilization.