Model Breakers: Breaking Through Stereotypes and Embracing Your Authenticity explores the intersection of self-awareness, identity, and minority stories. Charlene Wang invites us to change the limiting beliefs we impose on ourselves and break through the stereotypes that can keep us from achieving our dreams. Through the experiences of numerous Model Breakers, this book will help you to take risks and turn disadvantages into powerful tools. This book is for anyone who strives to fearlessly discover, accept and share their story with the world. If you are looking for some inspiration to surpass stumbling blocks in your personal and professional journey, this book is a must-read. Learn how to break through stereotypes and become a Model Breaker!
Showing the relation of physics to circuit interruption technology, describes for engineers the switching phenomena, test procedures, and applications of modern, high-voltage circuit breakers, especially SF, gas-blast, and the vacuum types used in medium-voltage ranges. Applies the physical arc mode
This newly revised and updated reference presents sensible approaches to the design, selection, and usage of high-voltage circuit breakers-highlighting compliance issues concerning new and aging equipment to the evolving standards set forth by the American National Standards Institute and the International Electrotechnical Commission. This edition features the latest advances in mechanical and dielectric design and application from a simplified qualitative perspective. High Voltage Circuit Breakers: Design and Applications features new material on contact resistance, insulating film coatings, and fretting; temperature at the point of contact; short-time heating of copper; erosion and electromagnetic forces on contacts; closing speed and circuit breaker requirements; "weld" break and contact bounce; factors influencing dielectric strength; air, SF6, vacuum, and solid insulation; and dielectric loss and partial discharges, and includes updated chapters on capacitance switching; switching series and shunt reactors; temporary overvoltages; and the benefits of condition monitoring.
"Whether you're using traditional, direct current (DC) cab control or the latest Digital Command Control (DCC) system [this] will guide you through the steps of planning and wiring a layout. With ... more modelers choosing DCC, this book will help demystify how it works; clarify the advantages of DCC and what makes it different from DC control; and, teach you how to convert an existing DC layout to DCC. Step-by-step instructions and photos are coupled with clear, color-coded diagrams that will guide you through the process of wiring a complete layout or just troubleshooting problem areas"--
Despite the powerful numerical techniques and graphical user interfaces available in present software tools for power system transients, a lack of reliable tests and conversion procedures generally makes determination of parameters the most challenging part of creating a model. Illustrates Parameter Determination for Real-World Applications Geared toward both students and professionals with at least some basic knowledge of electromagnetic transient analysis, Power System Transients: Parameter Determination summarizes current procedures and techniques for the determination of transient parameters for six basic power components: overhead line, insulated cable, transformer, synchronous machine, surge arrester, and circuit breaker. An expansion on papers published in the IEEE Transactions on Power Delivery, this text helps those using transient simulation tools (e.g., EMTP-like tools) to select the optimal determination method for their particular model, and it addresses commonly encountered problems, including: Lack of information Testing setups and measurements that are not recognized in international standards Insufficient studies to validate models, mainly those used in high-frequency transients Current built-in models that do not cover all requirements Illustrated with case studies, this book provides modeling guidelines for the selection of adequate representations for main components. It discusses how to collect the information needed to obtain model parameters and also reviews procedures for deriving them. Appendices summarize updated techniques for identifying linear systems from frequency responses and review capabilities and limitations of simulation tools. Emphasizing standards, this book is a clear and concise presentation of key aspects in creating an adequate and reliable transient model.
This pioneering volume has been updated and enriched to reflect the state-of-the-art in blackout prediction and prevention. It documents and explains background and algorithmic aspects of the most successful steady-state, transient and voltage stability solutions available today in real-time. It also describes new, cutting-edge stability applications of synchrophasor technology, and captures industry acceptance of metrics and visualization tools that quantify and monitor the distance to instability. Expert contributors review a broad spectrum of additionally available techniques, such as trajectory sensitivities, ensuring this volume remains the definitive resource for industry practitioners and academic researchers in this critical area of power system operations.
