Electromagnetic Transients in Transformer and Rotating Machine Windings

Description

Electromagnetic transient phenomena in transformers and rotating machines are complicated by their winding structures, with transient phenomena caused by either external events such as lightning, or by internal events such as switching operations and faults. This book explores relevant theoretical frameworks, the latest empirical research findings, and industry-approved techniques in this area. Written for professionals who want to improve their understanding of the electromagnetic transient phenomena in transformer and rotating machines windings, this research volume is also useful for university research students in power system protection, insulation condition monitoring, and incipient fault diagnosis. Content: Front Matter • Preface • Table of Contents •Section 1. Basic Theories 1. Transmission Line Theories for the Analysis of Electromagnetic Transients in Coil Windings 2. Basic Methods for Analysis of High Frequency Transients in Power Apparatus Windings 3. Frequency Characteristics of Transformer Windings 4. Frequency Characteristics of Generator Stator Windings 5. Ferroresonance in Power and Instrument Transformers •Section 2. Modelling 6. Transformer Modelling for Impulse Voltage Distribution and Terminal Transient Analysis 7. Transformer Model for TRV at Transformer Limited Fault Current Interruption 8. Z-Transform Models for the Analysis of Electromagnetic Transients in Transformers and Rotating Machines Windings 9. Computer Modeling of Rotating Machines •Section 3. Applications 10. Lightning Protection of Substations and the Effects of the Frequency-Dependent Surge Impedance of Transformers 11. Transformer Insulation Design Based on the Analysis of Impulse Voltage Distribution 12. Detection of Transformer Faults Using Frequency Response Analysis with Case Studies 13. Partial Discharge Detection and Location in Transformers Using UHF Techniques 14. Detection and Location of Partial Discharges in Transformers Based on High Frequency Winding Responses • Compilation of References • About the Contributors Index