Transformers

This book focuses on contemporary economic, design, diagnostics, and maintenance aspects of power, instrument, and high-frequency transformers, which are critical to designers for a transformer stations. The text covers such topics as shell type and superconducting transformers, as well as coreless PCB and planar transformers. It emphasizes challenges and strategies in transformer design and illustrates the importance of economics in transformers management by reviewing life-cycle cost design and the use of decision methods to manage risk.

Xose M. Lopez-Fernandez received his MSc in electrical engineering and his European Ph.D (with first-class honors) in electrical engineering from Vigo University, Spain, in 1992 and 1997, respectively. He is currently a professor in the Department of Electrical Engineering at that school and was a visiting professor at the University of Artois, Bethune, France. Professor Lopez-Fernandez is the founder and general chairman of the International Advanced Research Workshop on Transformers (ARWtr). He is currently being entrusted with the responsibility of leading research projects for Spanish and Portuguese utilities and power transformer manufacturers. His research interests include the design aspects of electrical machines. Dr. Lopez-Fernandez received the Alfons Hoffmann's Medal from the Polish Power Engineering Society in 2004. He is a member of the IEEE-PES Transformers Committee as well as CIGRE. H. Bulent Ertan received his BS and MS in electrical and electronics engineering (EEE) in 1971 and 1973, respectively, from the Middle East Technical University (METU) in Ankara, Turkey. He also received his Ph.D from the University of Leeds, England, in 1977. He then joined METU as a staff member in that same year. Professor Ertan is currently a staff member of the Department of Electrical and Electronics Engineering at METU. His research interest is in the area of electrical machine design and electrical drives, and he has consulted for a number of companies manufacturing electrical motors and drives in Turkey. He has directed more than 20 industry-financed research projects and many other projects financed by the Turkish Scientific and Technological Research Institute (TUBITAK). He has served as the assistant director of TUBITAK Information Technologies and Electronics Research Institute since 1999 and led the Intelligent Energy Conversion Systems Research Group at TUBITAK-SPACE Institute for 8 years. Ja

Part I: Power Transformers. Selected Problems of Transformers' Capability to Withstand Short Circuits. Insulation Problems of HV Power Transformers. Stray Losses, Screening, and Local Excessive Heating Hazard in Large Power Transformers. Superconducting Transformers. Challenges and Strategies in Transformer Design. Large-Shell-Type Transformers: Aspects of Design. Transformer Design Review: A Link between Design and Maintenance Stages. Life Management of Transformers. Power Transformer Acceptance Tests. Functional and Component-Related Diagnostics for Power Transformers, a Basis for Successful "Transformer Life Management". Sources, Measurement, and Mitigation of Sound Levels in Transformers. Power Transformers' Fault Diagnostics by Park's Vector Approach. Transformer Reliability: A Key Issue for Both Manufacturers and Users. Economics in Transformer Management: Focus on Life Cycle Cost, Design Review, and the Use of Simple Bayesian Decision Methods to Manage Risk. Part II: Instrument Transformers. Applications of Field Analysis during Design Process of Instrument Transformers. CAD System-Boundary Integral Equation Method for 3D Electric Field Analysis of Voltage Transformers. Instrument Transformers' Insulation Behavior to High-Voltage and High-Frequency Transients. Transfer of HF Disturbances through Instrument Transformers. Part III: High-Frequency Transformers. High-Frequency Transformer Materials. Powder Core Materials. Measurement and Prediction of Parameters of High-Frequency Transformers. High-Voltage, High-Frequency Transformer Design. Coreless PCB Transformers. Planar Transformers.