Transformer Monitoring by using Vibration Analysis

Since power transformer is a complex and critical component of the power transmission and distribution system, their reliability is crucially important for the energy system operation. So, there is an increasing interest in applying monitoring systems and on line diagnosis methods to transformers, as these are one of the most expensive and critical apparatus of a power system. Detecting failures in an incipient stage can avoid major damages of power transformer, allowing important savings in investing, and giving time enough to plan transformer outages. In recent years, a great number of monitoring systems have been suggested. In this paper the use of a vibration model to be applied to transformer monitoring is proposed. The paper deals with the introduction of the comparative method of the state estimation of transformers using continuous monitoring of transformer vibration.