A Digital Multifunction Relay for Intertie and Generator Protection
Title | A Digital Multifunction Relay for Intertie and Generator Protection PDF eBook |
Author | M. V. V. S. Yalla |
Publisher | |
Pages | 16 |
Release | 1992 |
Genre | |
ISBN |
Operation of customer-owned generation in parallel with a utility system introduces the potential for hazards and problems in both the utility and the customer system and protection schemes for intertie protection can represent a major portion of the overall installation cost. Advances in digital technology, signal-processing algorithms, advanced displays and user interface designs make it possible to integrate protective functions into a single digital relay, providing an economically viable alternative for the protection of the intertie and generator. In addition, digital technology provides other advantages.
A Digital Multifunction Relay for Intertie and Generator Protection
Title | A Digital Multifunction Relay for Intertie and Generator Protection PDF eBook |
Author | M.V.V.S. Yalla |
Publisher | Montréal : Canadian Electrical Association |
Pages | 16 |
Release | 1992 |
Genre | |
ISBN |
Operation of customer-owned generation in parallel with a utility system introduces the potential for hazards and problems in both the utility and the customer system and protection schemes for intertie protection can represent a major portion of the overall installation cost. Advances in digital technology, signal-processing algorithms, advanced displays and user interface designs make it possible to integrate protective functions into a single digital relay, providing an economically viable alternative for the protection of the intertie and generator. In addition, digital technology provides other advantages.
Setting a Generator Protective Digital Relay
Title | Setting a Generator Protective Digital Relay PDF eBook |
Author | James Flanagan |
Publisher | |
Pages | 108 |
Release | 2019-10-31 |
Genre | |
ISBN | 9781704373751 |
Relay protection is a mixture of art and science. Engineers, utilities and companies all have different philosophies about generator protection. This book works through setting a multifunction digital relay for a specific generator from beginning to end. The book also demonstrates PRC compliance. Many books have been written on the theory, principles and application of generator protective relaying. Therefore, the theory in this book is very concise and to the point.
Protective Relaying
Title | Protective Relaying PDF eBook |
Author | J. Lewis Blackburn |
Publisher | CRC Press |
Pages | 664 |
Release | 2006-12-21 |
Genre | Technology & Engineering |
ISBN | 9781574447163 |
Technological advances and structural changes within the electric utility industry mandate that protection engineers develop a solid understanding of the related new technologies as well as of power system operations and economics in order to function proficiently. Continuing in the bestselling tradition of the previous editions by the late J. Lewis Blackburn, Protective Relaying: Principles and Applications, Third Edition retains the fundamentals of protection relays and power system protection while incorporating new developments in the field. Thoroughly updated and revised, this third edition focuses on technological changes in the design of protective systems, the practical concerns of power system protection encountered by users, and the techniques for protecting typical facilities used in modern power systems. New to the Third Edition Expanded coverage of the requirements for generator intertie protection, generator protection, and generator excitation systems The latest technologies in microprocessor applications, including digital-based devices and designs Protection issues, such as capacitor bank protection, underfrequency and undervoltage load shedding, special protection schemes, DC tripping scheme designs, fault location, and event reports Building on the excellence of the preceding editions, this book will continue to serve as a basic reference for newcomers to the area as well as for experienced engineers. By sharing his first-hand experience with protection practices, the author offers valuable realistic insight into this field.
Protective Relaying for Power Generation Systems
Title | Protective Relaying for Power Generation Systems PDF eBook |
Author | Donald Reimert |
Publisher | CRC Press |
Pages | 796 |
Release | 2017-12-19 |
Genre | Technology & Engineering |
ISBN | 1351836706 |
Power outages have considerable social and economic impacts, and effective protection schemes are crucial to avoiding them. While most textbooks focus on the transmission and distribution aspects of protective relays, Protective Relaying for Power Generation Systems is the first to focus on protection of motors and generators from a power generation perspective. It also includes workbook constructions that allow students to perform protection-related calculations in Mathcad® and Excel®. This text provides both a general overview and in-depth discussion of each topic, making it easy to tailor the material to students' needs. It also covers topics not found in other texts on the subject, including detailed time decrement generator fault calculations and minimum excitation limit. The author clearly explains the potential for damage and damaging mechanisms related to each protection function and includes thorough derivations of complex system interactions. Such derivations underlie the various rule-of-thumb setting criteria, provide insight into why the rules-of-thumb work and when they are not appropriate, and are useful for post-incident analysis. The book's flexible approach combines theoretical discussions with example settings that offer quick how-to information. Protective Relaying for Power Generation Systems integrates fundamental knowledge with practical tools to ensure students have a thorough understanding of protection schemes and issues that arise during or after abnormal operation.
Digital Protective Relays
Title | Digital Protective Relays PDF eBook |
Author | Vladimir Gurevich |
Publisher | CRC Press |
Pages | 422 |
Release | 2017-12-19 |
Genre | Technology & Engineering |
ISBN | 1439837864 |
Digital (microprocessor-based) protection relays (DPR) are dominating the global market today, essentially pushing all other types of relays out of the picture. These devices play a vital role in power operations for fields ranging from manufacturing, transportation, and communication to banking and healthcare. Digital Protective Relays: Problems and Solutions offers a unique focus on the problems and disadvantages associated with their use, a crucial aspect that goes largely unexamined. While there is already a massive amount of literature documenting the benefits of using digital relays, devices as sophisticated as DPR obviously have faults and drawbacks that need to be understood. This book covers these, delving into the less familiar inner workings of DPR to fill a critical literary void and help decision makers and specialists in the field of protection relays find their way out of the informational vacuum. The book provides vital information to assist them in evaluating relay producers' claims and then choose the right product. Tearing away the informational "curtain" that exists today, this book: Describes construction of functional modules of existing relays Analyzes drawbacks and problems of digital relays Details specific technical problems and their solutions Assesses dangers of intentional destructive electromagnetic intrusions Discusses alternative (non-microprocessor-based) protection relays, and problems related to international standards Focusing on practical solutions, this book explains how to correctly choose digital relays and ensure their proper use while avoiding the many problems they can present. The author avoids mathematics and theory in favor of more practical, tangible information not easily found elsewhere. Setting itself apart from other books on the subject, this volume shines a light into the long hidden "black box" of information
The Relay Testing Handbook #3D:
Title | The Relay Testing Handbook #3D: PDF eBook |
Author | Chris Werstiuk |
Publisher | Valence Electrical Training Services LLC |
Pages | 94 |
Release | 2012 |
Genre | Philosophy |
ISBN | 1934348066 |
As modern protective relays become increasingly more powerful and complex, many relay testers continue to use test procedures and philosophies that are based on previous generations of relays and their limitations. Modern relays have very different characteristics that require a different testing philosophy to ensure that they will operate when required. The Relay Testing Handbook: Understanding Digital Logic explains the different forms of relay logic used in modern microprocessor based relays. Each type of relay logic is described in detail with practical examples to demonstrate how relay manufacturers use common relay logic principles applied with different style interfaces such as: Individual element schemes (General Electric SR and Beckwith Electric Company relays) Binary relays (Alstom and Siemens relays) Arithmetic (math) schemes (Schweitzer Engineering Laboratories relays) Logic schemes (General Electric UR relays) Use the practical examples outlined in this volume to help you: Understand and use logic gates such as AND, OR, NOT, NOR, NAND, and moreUse logic comparators and timersConvert relay settings from one logic format to anotherConvert logic schemes into DC schematics to help understand and commission logic systemsUnderstand the protective relay logic used in nearly every in-service relay today This book is included in the hardcover book The Relay Testing Handbook: Principles and Practice, or it can be ordered by itself as a soft-cover book, Adobe Acrobat PDF digital download, or both. Paperback: 90 pages Trim Size: 8.5"x11" Publisher: Valence Electrical Training Services LLC Language: English ISBN-13: 978-1-934348-06-2 LCCN: 2012934619