The book "Elements of relay protection devices and automation of power systems and their design" by Fabrikant B. L. is a unique work that immerses the reader in the world of modern technologies and systems that ensure the reliability and safety of energy supply. This publication will be an indispensable assistant for both students studying electrical engineering and energy, and for practicing engineers seeking to deepen their knowledge in the field of relay protection and automation. In his work Fabricant B. L. examines in detail the principles of relay protection devices, their elements and functions, as well as design methods that allow you to create effective and reliable systems. The author not only outlines the theoretical aspects, but also supports them with practical examples, which makes the material accessible and understandable. The reader will be able to learn about current trends in the development of relay protection, as well as about new technologies that are actively implemented in power systems. The book will be especially interesting for those who study or work in the field of energy, electrical engineering, as well as automation. Students of technical universities, graduate students and young professionals will be able to find useful recommendations and advice in it that will help them in their studies and professional activities . Engineers involved in the design and maintenance of power systems will find here relevant data on new devices and methods of their application, which will allow them to increase the efficiency of their work. The topics raised in the book cover a wide range of issues, including the basics of relay protection, the principles of operation of various devices, the design and implementation of automated systems. The manufacturer emphasizes the importance of reliability and security of energy supply, which makes this book especially relevant in the light of modern challenges and requirements for energy systems. With the growing load on the power grid and the need to modernize them, the knowledge set out in this publication is becoming key to the successful functioning of the energy infrastructure. The author's style is distinguished by clarity and logical presentation, which allows the reader to easily assimilate complex technical concepts. Fabricant B. L. He is known for his in-depth research in energy and relay protection, and his previous work has also gained recognition in professional circles. By reading this book, you can not only expand your knowledge, but also get inspiration for new ideas and projects. If you are looking for books on relay protection, automation of power systems or design of electrical devices, then “Elements of relay protection devices and automation of power systems and their design” will be a real find for you. This publication will not only enrich your knowledge, but also help you become a more confident specialist in your field. Do not miss the opportunity to immerse yourself in the world of high technology and learn about how modern protection systems and automation can change the future of energy.