Power Transformers Assessment Applying Health Index and Apparent Age Methods

Abstract

The power transformers conditions assessment are essential for the management of these assets by companies. In order to provide a tool to aid this process, a Health Index methodology along with the apparent age strategy, is applied to power transformers of the Santo Antonio Hydroelectric Plant in Brazil. This method is adapted to the plant reality and its transformers monitoring data, resulting in an assessment based on the global state and load history of the equipment.