TESTS ON POWER TRANSFORMERS

Power transformers are major power system equipment. Their reliability not only affects electric energy availability of the supplied area, but also affects the economical operation of a utility. Determining transformer condition is useful in itself for making short-term decisions regarding operation and maintenance. This paper deals with the analysis of maintenance type of transformers, in connection with power transformers testing methods, having in view to establish a methodology to use data acquisition derived from condition monitoring and standard diagnosis for rehabilitation purposes of transformers.