With the help of this money-saving reference, engineers and technicians in industries with independent power supplies and in electric utility companies can evaluate and improve the efficiency of transformers in electric power systems. This practical guide describes the causes of poor efficiency in transformer-load and no load losses, and explains how to appraise the cost-effectiveness of purchasing efficient transformers. Readers will learn traditional ways of improving efficiency, such as the use of larger conductors-and also discover how to implement new technologies such as amorphous steel and cryogenics, laser etched silicon, and automated transformers.