The book “Current Transformers in Relay Protection Schemes” by B. E. Kazansky is an indispensable work for all who are interested in electrical engineering, relay protection and automation. In this edition, the author is deeply immersed in the world of current transformers, revealing their significance and role in protection systems of electrical equipment. The book will become a real guide for both students of technical universities and for practicing engineers seeking to expand their knowledge in this field. In. E. Kazansky, a well-known specialist in the field of electrical engineering and the author of many scientific publications, offers readers a unique look at current transformers, their design and application. The book covers a wide range of topics, ranging from the basics of the transformers and ending with their integration into modern relay protection schemes. The reader will be able to learn about the principles of operation, characteristics and features of different types of current transformers, as well as how to choose and configure them to ensure reliable protection of electrical equipment. One of the key themes of the book is the importance of current transformers in relay protection systems. Kazansky focuses on how these devices help prevent accidents and minimize damage from short circuits and overloads. The book also discusses modern approaches to the diagnosis and maintenance of transformers, which makes it especially relevant for practitioners working in the field of electricity. The book will be of interest not only to students and engineers, but also to teachers engaged in the training of future specialists in the field of electrical engineering .. It can become the basis for training courses and seminars, as well as useful reference material for those who want to deepen their knowledge of relay protection and current transformers. Interesting examples from practice and illustrative illustrations make the material accessible and understandable, and also contribute to a better assimilation of complex technical aspects. The author's style is distinguished by clarity and logical presentation, which allows the reader to easily follow his thoughts and ideas. Kazansky skillfully combines theory with practical examples, which makes the book not only informative, but also practically useful. The reader will be able not only to master the theoretical foundations, but also to apply the knowledge gained in practice. If you are looking for literature that will help you understand the intricacies of current transformers and their role in relay protection, this book will be an excellent choice. It will also be useful to those who are interested in modern trends in the field of electrical engineering and automation. In. E. Kazansky, in addition to this work, is the author of other well-known publications on electrical engineering and relay protection, which confirms his authority in this area. Do not miss the opportunity to immerse yourself in the world of current transformers and relay protection with the help of the book “Current transformers in relay protection schemes” This edition will be your reliable companion in the study of complex but fascinating aspects of electrical engineering, opening up new horizons of knowledge and opportunities for professional growth.