Justifying the use of high efficiency transformers

Given today's competitive business climate and energy conscious environment, one potentially rewarding opportunity for energy conservation involves the use of high efficiency transformers for industrial power system applications. Design techniques utilized by manufacturers to improve the efficiencies of various types of transformer are summarized. Transformer investment guidelines are provided to allow a straightforward determination of the cost/benefit of applying high-efficiency transformers based on an internal rate of return (IRR). Overall recommendations for applying high efficiency transformers are also presented.