Abstract: Presently in distribution system, various protection schemes are used for transformers which are carried out manually. When any fault occurs within a distribution line, the power transformer feeding the distribution transformers is tripped, ultimately leading collapse of the power system. This results in poor power quality and reduces reliability of the system. This paper helps to overcome the above mentioned limitation. Overloading is the main reason to trip the power transformer which requires human intervention. Automatic protection helps to reduce human intervention and also needs less attention to the system. Today, the feeder groups are categorized as A, B, C, D, E, F, and AG. A has the highest priority, followed by B, C, and so on. Feeder AG has the lowest priority. When the transformer is overloaded, the feeder of lower priority is tripped. When the load decreases, the feeder is brought back in the operation. The temperature is also, one of the important issues with transformers. In the proposed scheme transformer temperature is controlled and monitored by temperature sensing elements and controller.
Keywords: power system, transformer protection, automatic load handling, temperature control.
Title: Transformer Protection by Using Micro controller
Author: Khavale Shankar N., Mandke Radheya N., Rananavare Chandrashekhar M., Prof. Nehete Amit L.
International Journal of Electrical and Electronics Research
ISSN 2348-6988 (online)
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