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Transformers play an important role in a power distribution utility. They have a long life of 25 to 30 years; but they fail in large numbers, within 3 years itself, due to various reasons, causing huge economic and service impact on the distribution utilities as well the power consumers. In this paper, causes of failure of distribution transformers and possible solutions to overcome these problems have been discussed. Some of the problems may be particular to distribution utilities of Karnataka state, but most of them are generally, Indian problems.
Pandit et al. (Wed,) studied this question.