Valuable data, essential services and production process plants are typical assets that can be lost or seriously disturbed by power supply breaks or contamination. An uninterruptible power supply (UPS) can avoid potentially catastrophic havoc caused by electricity supply line disturbances. Behind this protection, however, is the need for a sound UPS design based on a thorough specification to achieve reliable and consistent functioning. This book is a comprehensive guide to the various types of UPS systems available and how they may be specified and applied effectively. It should be beneficial to design engineers working on commercial premises and industrial processes that employ sensitive electronic equipment; to building services and their consulting engineers; and to facilities managers concerned with computer installations and telecommunication systems. Essentially written for practising electrical engineers, the text will also be of value to students in computer technology and telecommunications as well as building services and design.

Energy flow from many primary sources is not constant but depends on the season, time of day and weather conditions. Energy demand also varies with the same circumstances, but generally in reverse. Obviously there needs to be some way for energy suppliers to separate the processes of energy generation and consumption, by storing energy until it is needed. Electricity is the most flexible and convenient form of energy for transmission and use but it is not economically possible to store electrical energy in significant quantities. Secondary energy storage systems can accept energy generated by a power system, convert it to a form suitable for storage, keep it for a certain time and then convert it into the form required by the consumer when it is needed. These systems are an essential tool in managing energy supplies. This book is a comprehensive guide to the various types of secondary storage systems and an introduction to the multidisciplinary problem of choice of their types and parameters. It is chiefly aimed at students of electrical and power engineering, and design and research engineers concerned with the logistics of power supply. It will also be valuable to all those interested in the development of environmentally benign power supplies.

Konzeption, Defizite und erforderliche Massnahmen zur Technikfolgenforschung und -abschatzung wurden auf einer vom Bundesministerium fur Forschung und Technologie veranstalteten, zentralen Tagung erortert. Die Ergebnisse werden im vorliegenden Tagungsband dokumentiert und damit der Offentlichkeit richtungsweisendes Orientierungswissen dieses aktuellen Themas in die Hand gegeben.

This book analyses the factors that determine the cost of electricity from new power plants. These factors, including construction costs, fuel expense, environmental regulations, and financing costs can all be affected by government energy, environmental, and economic policies. Government decisions to influence or not influence these factors can largely determine the kind of power plants that are built in the future. This book provides projections of the possible cost of power from new fossil, nuclear, and renewable plants built in 2015, illustrating how different assumptions, such as the availability of federal incentives, change the cost rankings of technologies. None of the projections are intended to be a "most likely" case. Future uncertainties preclude firm forecasts. The rankings of the technologies by cost are therefore also an approximation and should not be viewed as definitive estimates of the relative cost-competitiveness of each option. The value of this book is not as a source of point estimates of future power costs, but as a source of insight into the factors that can determine future outcomes, including factors that can be influenced by Congress.

This book presents a general framework for modelling power system devices to develop complete electromechanical models for synchronous machines, induction machines, and power electronic devices. It also presents linear system analysis tools that are specific to power systems and which are not generally taught in undergraduate linear system courses. Lastly, the book covers the application of the models, analysis and tools to the design of automatic voltage controllers and power system stabilisers, both for single-machine-infinite-bus systems and multi-machine interconnected systems. In most textbooks modelling, dynamic analysis, and control are closely linked to the computation methods used for analysis and design. In contrast, this book separates the essential principles and the computational methods used for power system dynamics and control. The clear distinction between principles and methods makes the potentially daunting task of designing controllers for power systems much easier to approach. A rich set of exercises is also included, and represents an integral part of the book. Students can immediately apply-using any computational tool or software-the essential principles discussed here to practical problems, helping them master the essentials.

This book presents theoretical and practical aspects of providing reliable electrical network operation by 6 500 V voltage. The topics covered includes semiconductor systems for de-icing overhead transmission lines, dispatching solutions in power systems by expert systems, partial discharge diagnostics, electrodynamic testing of reactors, an investigation of technological breakdowns with damage to power transformers, perspectives for using photothyristors, IGCT and IGBT for electrodynamic, programmable static converters for intelligent electrical networks, and digital current transformers for digital substations. Chapter 1 describes the serious problem of glacial deposits on overhead transmission lines during the autumn-winter period. One of the methods to combat this is melting the glacial deposits on alternating current lines by creating short circuits, or direct currents using uncontrolled or controlled rectifier blocks. Chapter 2 discusses the expansion of the Automatic Dispatch Control System for substations and electrical networks using intelligent subsystems based on the technology of expert systems. Chapter 3 presents an application's experience with monitoring the electric activity of the partial discharges into the insulation of transformers, data on electrical tests in autotransformer windings, and testing XLPE cables. Chapter 4 shows the thermal and electrodynamic tests of reactors on the reliability and durability of windings during the passage of short-circuit currents, serving as a tool for improving the reliability of their design. Chapter 5 investigates a technological breakdown with damage to power transformers, which is a difficult task, and is performed to improve the reliability of the power supply. Chapter 6 shows diagnostic and mathematical models of the windings of the high-voltage transformers and reactors. Mathematical models of winding radial and axial deformations are also calculated. Chapter 7 provides the comparative characteristics of switching capabilities of photothyristors, lockable thyristors IGCT, and high-power transistors IGBT, taking into account the specific operating conditions in the composition of the high-voltage high-current semiconductor key (HHCSK) during electrodynamic tests. In Chapter 8, the author considers the basic operations of implicative algebra for the choice of the logical-algebraic modeling of static converters, provided that the objective and predicate variables are identified with the parameters of the energy and information processes. Chapter 9 presents controlled reactor-transformers with reduced high current harmonics and the calculation of parameters of the active parts of transformers. Finally, chapter 10 presents the results of designing a device for calculating the current on digital current transformers, based on the Faraday Effect. This book is based on the authors previous research, including more than 240 scientific and technical publications.

Electricity is the lifeblood of modern society, and for the vast majority of people that electricity is obtained from large, interconnected power grids. However, the grid that was developed in the 20th century, and the incremental improvements made since then, including its underlying analytic foundations, is no longer adequate to completely meet the needs of the 21st century. The next-generation electric grid must be more flexible and resilient. While fossil fuels will have their place for decades to come, the grid of the future will need to accommodate a wider mix of more intermittent generating sources such as wind and distributed solar photovoltaics. Achieving this grid of the future will require effort on several fronts. There is a need for continued shorter-term engineering research and development, building on the existing analytic foundations for the grid. But there is also a need for more fundamental research to expand these analytic foundations. Analytic Research Foundations for the Next-Generation Electric Grid provide guidance on the longer-term critical areas for research in mathematical and computational sciences that is needed for the next-generation grid. It offers recommendations that are designed to help direct future research as the grid evolves and to give the nation's research and development infrastructure the tools it needs to effectively develop, test, and use this research. Table of Contents Front Matter Summary 1 Physical Structure of the Existing Grid and Current Trends 2 Organizations and Markets in the Electric Power Industry 3 Existing Analytic Methods and Tools 4 Background: Mathematical Research Areas Important for the Grid 5 Preparing for the Future 6 Mathematical Research Priorities Arising From the Electric Grid 7 Case Studies 8 Building a Multidisciplinary Research Community Appendixes Appendix A: Workshop Agenda Appendix B: Committee Biographies Appendix C: Acronyms

Publisher's Note: Products purchased from Third Party sellers are not guaranteed by the publisher for quality, authenticity, or access to any online entitlements included with the product. THE DEFINITIVE GUIDE TO POWER QUALITY--UPDATED AND EXPANDEDElectrical Power Systems Quality, Third Edition, is a complete, accessible, and up-to-date guide to identifying and preventing the causes of power quality problems. The information is presented without heavy-duty equations, making it practical and easily readable for utility engineers, industrial engineers, technicians, and equipment designers. This in-depth resource addresses the essentials of power quality and tested methods to improve compatibility among the power system, customer equipment, and processes. Coverage includes: Standard terms and definitions for power quality phenomena Protecting against voltage sags and interruptions Harmonic phenomena and dealing with harmonic distortion Transient overvoltages Long-duration voltage variations Benchmarking power quality International Electrotechnical Commission (IEC) and Institute of Electrical and Electronics Engineers (IEEE) standards Maintaining power quality in distributed generation systems Common wiring and grounding problems, along with solutions Site surveys and power quality monitoring

Publisher's Note: Products purchased from Third Party sellers are not guaranteed by the publisher for quality, authenticity, or access to any online entitlements included with the product.The Definitive Guide to Large-Scale, Grid-Connected Solar Power System Design and ConstructionThis GreenSource book provides comprehensive engineering design and construction guidelines for large-scale solar power system projects. Proven design methodologies are detailed installation diagrams are included in this practical resource. Large-Scale Solar Power System Design offers complete coverage of solar power system technologies and components, planning, cost estimates, financing, project management, safety, and testing. This authoritative guide fully addresses the complex technical and management issues associated with large-scale, grid-connected solar power system implementations. COVERAGE INCLUDES: Solar power system technologies, including photovoltaic and thin-film solar cells Solar power system physics Photovoltaic power system feasibility study Solar power system costing Solar power system design Large-scale solar power system construction Concentrator photovoltaic systems Solar power system project management Smart-grid systems Solar thermal power Solar power financing and feed-in tariff programs

Power transfer for large systems depends on high system voltages. The basics of high voltage laboratory techniques and phenomena, together with the principles governing the design of high voltage insulation, are covered in this book for students, utility engineers, designers and operators of high voltage equipment.
In this new edition the text has been entirely revised to reflect current practice. Major changes include coverage of the latest instrumentation, the use of electronegative gases such as sulfur hexafluoride, modern diagnostic techniques, and high voltage testing procedures with statistical approaches.
A classic text on high voltage engineering
Entirely revised to bring you up-to-date with current practice
Benefit from expanded sections on testing and diagnostic techniques

The best-selling power system operation manual ever published--NOW IN AN ALL-NEW EDITION! For over 30 years more electrical power professionals have used this guide for safe, economical system operation than any other in print. Why? Because Power System Operation, by Robert Miller and James Malinowski, presents more of the fundamental principles and methods dispatchers and operators need in a clear, easy-to-understand style. Now this third edition has been expanded by 50% to cover even more: VAR flows; Power system control; Telemetering methods; Supervisory control and data acquisition methods; System control, protection and stability; System reliability factors, Power system energy transfer; Energy accounting in interconnected operations; Operating systems most economically; EHV operation; Power system communications; Impedance of parallel circuits; Effects of resistance on impedance.

If you want top grades and excellent understanding of electric power systems, this powerful study tool is the best tutor you can have! It takes you step-by-step through the subject and gives you accompanying related problems with fully worked solutions. You also get hundreds of additional problems to solve on your own, working at your own speed. This superb Outline clearly presents every aspect of real-world power system calculation and implementation. Famous for their clarity, wealth of illustrations and examples, and lack of dreary minutia, SchaumÕs Outlines have sold more than 30 million copies worldwide. Compatible with any textbook, this Outline is also perfect for standardized test or professional exam review.

This book presents select proceedings of the 3rd Electric Power and Renewable Energy Conference 2022 (EPREC 2022). This book provides rigorous discussions, case studies, and recent developments in the emerging areas of the power systems, especially renewable energy conversion systems, distributed generations, microgrids, smart grids, HVDC & FACTS, power system protection, etc. The readers would be benefited in terms of enhancing their knowledge and skills in the domain areas. The book will be a valuable reference for beginners, researchers, and professionals interested in developments in the power system.

The history of the grid, the world's largest interconnected power machine that is North America's electricity infrastructure. The North American power grid has been called the world's largest machine. The grid connects nearly every living soul on the continent; Americans rely utterly on the miracle of electrification. In this book, Julie Cohn tells the history of the grid, from early linkages in the 1890s through the grid's maturity as a networked infrastructure in the 1980s. She focuses on the strategies and technologies used to control power on the grid-in fact made up of four major networks of interconnected power systems-paying particular attention to the work of engineers and system operators who handled the everyday operations. To do so, she consulted sources that range from the pages of historical trade journals to corporate archives to the papers of her father, Nathan Cohn, who worked in the industry from 1927 to 1989-roughly the period of key power control innovations across North America. Cohn investigates major challenges and major breakthroughs but also the hidden aspects of our electricity infrastructure, both technical and human. She describes the origins of the grid and the growth of interconnection; emerging control issues, including difficulties in matching generation and demand on linked systems; collaboration and competition against the backdrop of economic depression and government infrastructure investment; the effects of World War II on electrification; postwar plans for a coast-to-coast grid; the northeast blackout of 1965 and the East-West closure of 1967; and renewed efforts at achieving stability and reliability after those two events.

Electricity Pricing: Regulated, Deregulated and Smart Grid Systems presents proven methods for supplying uninterrupted, high-quality electrical power at a reasonable price to the consumer. Illustrating the evolution of the power market from a monopoly to an open access system, this essential text: Covers voltage stability analysis of longitudinal power supply systems using an artificial neural network (ANN) Explains how to improve performance using flexible alternating current transmission systems (FACTS) and high-voltage direct current (HVDC) Takes into account operating constraints as well as generation cost, line overload, and congestion for expected and inadvertent loading stress Goes beyond FACTS and HVDC to provide multi-objective optimization algorithms for the deregulated power market Proposes the use of stochastic optimization techniques in the smart grid, preparing the reader for future development Electricity Pricing: Regulated, Deregulated and Smart Grid Systems offers practical solutions for improving stability, reliability, and efficiency in real-time systems while optimizing electricity cost.

Completely revised and up to date with the 2017 National Electrical Code (R), ELECTRICAL WIRING COMMERCIAL, Sixteenth Edition, offers the most current coverage available. This reader-friendly text has long been trusted by instructors and popular with students. Known for its vibrant, full-color illustrations and photographs, the text bring even difficult concepts to life and makes complex material easier to understand. In addition to updates based on 2017 NEC (R), the Sixteenth Edition features increased emphasis on green technologies, new developments in electrical design and installation, and safety in the workplace, providing ample coverage of topics you'll likely encounter as a working professional in this dynamic field.

ALTERNATING CURRENT FUNDAMENTALS, 8E, an industrial standard for over thirty years, is the ideal book to provide readers with the most current information available on the essentials of alternating current. The topics in this book are arranged to build readers' knowledge, progressing from basic principles such as the differences between peak, rms, and average values to more complex coverage of circuits containing resistance, inductance, and capacitance. This edition of ALTERNATING CURRENT FUNDAMENTALS, 8E is fully updated, includes additional information on diodes and rectifiers, and contains improved graphics that will assist readers in understanding state-of-the-art concepts.

For nearly half a century, this widely acclaimed book has presented the fundamental concepts of direct current electricity and magnetism in a straightforward, practical manner. This reader-friendly guide to DC electrical theory and applications is both thorough and focused, providing detailed coverage in a convenient, affordable volume. The new Eighth Edition retains the distinguishing features that are the cornerstone of this trusted book, including logically organized content that progresses step-by-step from basic principles to advanced concepts. Enhancements for the new edition include updated photographs and illustrations to help you grasp essential concepts quickly and apply your knowledge with confidence, as well as special icons highlighting "green" tips on energy efficiency.