SSRG International Journals
Electrical industry has to meet increasing demands on cost efficiency. Existing transformer population represents enormous assets and monitoring will be a key factor for the effective use of these assets. As compared with generators in which many abnormal condition may arise. Probability of faults on power transformer is undoubtedly more and hence automatic protection is absolutely necessary. Transformer may suffer from open circuits, overheating; winding short circuits e.g. earth faults and inter turn faults. Protection is absolutely necessary for internal faults.