Health index based condition monitoring of distribution transformer

Distribution transformer is equipment which plays very important role in the power distribution system. Because of, presence of the large number of transformers and various components over a wide area in power systems, the condition monitoring of health and automatic controlling of distribution transformers are important issues. This paper presents fuzzy logic approach towards monitor as well as diagnose the condition of distribution transformers, like load current, transformer oil and voltages. The suggested scheme will help to detect the internal fault of distribution transformer and also diagnose the faults with the help of defined range of parameters. On the performance of these parameters health of distribution transformer is observed and decisions taken for whether to keep distribution transformer in service or go for maintenance.