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Reducing distribution transformer losses through the use of Smart Grid monitoring

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2 Author(s)
McBee, K.D. ; Colorado Sch. of Mines, Golden, CO, USA ; Simoes, M.G.

Environmental concerns have resulted in distribution companies becoming more cognitive of the amount of carbon emissions they produce. Research has shown that distribution transformer losses comprise a significant amount of the overall losses on a distribution and transmission system. Although some of the losses are considered the cost of operations, it may be possible to reduce the total losses associated with overloaded transformers depending upon the amount of overload and the efficiency of the replacement transformer. Through the use of a Smart Grid monitoring system, overloaded distribution transformers can be identified for replacement as soon as loads become sufficient to shorten the expected life of a transformer. This paper examines how to utilize a Smart Grid monitoring system in conjunction with loss of life calculations to identify overloaded transformers. Also described in the paper are the necessary input requirements, algorithm requirements, notification threshold levels, and an economic analysis that is specific to a Smart Grid overloaded transformer replacement program.

Published in:

North American Power Symposium (NAPS), 2009

Date of Conference:

4-6 Oct. 2009