The book "Power supply systems" by A. M. Ershov is an indispensable guide for those who seek to understand the complex and multifaceted world of modern electric power industry. This book is intended for engineers, students of technical universities, specialists in the field of energy and anyone who is interested in the issues of reliable and efficient power supply. In it, the author masterfully reveals the basics and current trends in the development of power supply systems, making complex technical concepts accessible and understandable. What makes "Power Supply Systems" special? First of all, it is a deep analysis of the architecture and functioning of various types of power grids - from classical distribution systems to modern intelligent networks integrating renewable energy sources . Ershov is not limited to theory: the book is saturated with practical recommendations, real-life examples and modern methods of solving actual problems. The reader will find here a discussion of automation, protection, management and optimization of power supply, which is especially important in the era of digitalization and the introduction of new technologies. The book "Power supply systems" is perfect for students studying in the field of electricity, electricity supply and automation of production processes, as well as practical engineers who want to update their knowledge or expand their professional horizons. Its structure and style of presentation make complex topics understandable, and examples are easily applicable in real work. The author’s approach combines the rigor of scientific data and a lively style of presentation, which makes reading not only useful, but also fascinating. If you are interested in sustainable energy development, the introduction of renewable energy, automated power grid management systems or just want to understand how modern energy infrastructure works, this book will be a valuable source of knowledge for you. It raises the issues of reliability of power supply, energy efficiency, integration of new technologies and modern methods of diagnostics and prevention of malfunctions .. Ershov masterfully shows why power supply systems are not just a technical object, but an important component of the modern economy and society. A special place in the book is occupied by the analysis of the prospects for the development of energy, the discussion of new standards and regulations, as well as the challenges associated with the transition to clean energy. The author not only shares theoretical knowledge, but also offers practical solutions, which makes the book a valuable tool for professional activities. Ershov's style is a combination of scientific rigor and a lively, accessible language that allows the reader to easily assimilate even the most complex topics. If you’re looking for a book that will help you understand how power systems work, why their reliability is so important, and how modern technology is changing the face of energy, Power Systems A. M. Ershova is exactly what you need. This publication will become your reliable satellite in the world of electric power, expand your horizons and give practical skills for solving urgent problems. In an era of rapid technological change, this book is the key to understanding the future of the energy industry, which is becoming increasingly intelligent, sustainable and environmentally oriented.