Learn how to ensure optimal efficiency! Save money, resources--and guesswork--with this invaluable reference that can help you evaluate and improve transformer efficiency in electrical power systems more reliably. The author, a professional electrical system efficiency expert, clearly explains: the typical causes of poor efficiency in transformer load and no-load losses; traditional efficiency improvement methods, such as the use of larger conductors and properly sizing transformers; effective new solutions, including the use of amorphous steel and cryogenics, laser-etched silicon steel, and advanced design transformers. A diskette is included with the book containing the Environmental Protection Agency's Distribution Transformer Cost Evaluation Model (DTCEM), version 1.1. This program helps engineers perform the complex economic analyses needed to accurately determine the cost-effectiveness and emission reduction potential of high-efficiency transformers. It also provides the information necessary for facilities to weigh purchases of high-efficiency distriubtion transformers against competing resource options. Sure to be of ongoing benefit to any cost-conscious utility engineer or commercial and industrial engineer manager, this timely book plus computer program not only highlights a potentially significant savings opportunity, it also provides a sensible framework for evaluating losses and making more intelligent purchasing decisions.