Automated control systems of electrical substations / stations (PS) are an integral part of the management system of the Unified National Electric Grid of Russia (UNES). The modern automated process control system (ACS) is a hardware and software complex (PACK) consisting of technical and software tools designed for monitoring and controlling electrical equipment, as well as for dispatching control. Since the beginning of the introduction of modern automated process control systems in the Russian Federation, the experience and equipment of such international companies as ABB, Siemens, AREVA, General Electric, Schneider Electric, Sprecher Automation and others have been used. Currently, their share in the Russian electric power industry is significant. Since 2022, technical support for foreign automated process control systems in the Russian Federation has been unilaterally discontinued and the modernization of automated process control systems based on foreign solutions is practically impossible. In addition, new additional requirements were introduced to ensure the energy security of the Russian Federation — the transition from existing PAKS to the so-called trusted PAKS before 01.01.2030. In case of non-fulfillment of the specified requirements for the transition to DPAK, criminal or administrative liability is provided. Due to the fact that foreign organizations have left the market of automated process control systems in the Russian Federation and do not plan to localize production to meet the requirements for trusted PAK, a window of opportunity opens up for domestic organizations to modernize and replace automated process control systems of foreign production.

The purpose of this work is the prospects for the development of the BN-1200 fast neutron reactor, which should be launched in 2025. Fast neutron reactors are very compact. They don't need any retarders or absorbers — uranium plays their role. The successful implementation of automated control systems has made it possible to reduce the risks in avoiding emergency situations in the management of nuclear power plants. However, the human factor in management leaves problems in management — the possible assumption of errors by the operator in the management of nuclear power plants. Inevitably, there is also a protection system in the management. Here it is worth emphasizing one important detail in management, namely, information systems began to be implemented in the management of nuclear power plants. Information systems have reduced a number of problems in NPP management. In addition to reducing the role of human influence in the management of the NPP, they have re-equipped the management of the NPP itself.

Understanding how harmonics affect electrical systems is very useful for ensuring smooth and safe operation. Harmonics are changes in an electric wave that can cause various problems, such as excessive heating, equipment failure, and decreased efficiency. This article discusses various types of harmonics, their causes and the problems they can create in power supply systems used in industry and enterprises.

Currently, electric power companies and consumers pay great attention to improving the quality of generated and distributed electricity. The main goal is to produce clean electricity and distribute it to end users with acceptable electricity quality characteristics in a cost — effective manner. Currently, the importance of electricity quality aspects has increased due to the rapid development of power electronic devices and renewable energy sources under the auspices of smart grids. In addition, the deregulation of the electricity market has led to the emergence of a competitive market in which numerous utility companies are trying to supply the best products (generated electricity) to customers by supplying them with the highest quality electricity. As a result, the quality of electricity will play a significant role in modern electric power systems. However, there are also difficulties before it becomes possible to apply the limits of electricity quality indicators more widely. One of the difficulties is that there is currently no single generally accepted definition of electricity quality due to the different perspectives and phenomena of electricity quality. In addition, the quality of electricity has different interpretations for people in different electrical organizations. Some define the quality of electricity as the quality of voltage, others as the quality of current, and some practice the quality of electricity as the reliability of the system.

The paper considers the issue of determining the optimal solution for choosing the installed capacity of wind turbines, based on the balance of cost and energy efficiency. The purpose of this article is to conduct a comparative analysis of three categories of wind turbines, assessing their economic and technical characteristics. Special attention will be paid to medium — capacity installations, which represent the optimal solution for many use cases, from energy supply to small enterprises to integration into hybrid power systems.

A comparative analysis of keys based on low- and high-power dinistors has been performed. Reversible pulse dynistors (RVD), which are used in the design of a solid-state switch for powering power plants, have found the greatest application. RVDS can operate in the nanosecond, microsecond, and submillisecond ranges. They switch a pulse current of up to 500 kA, with a duration of up to 0,5 ms, and are performed in tablet and bodyless versions in monopulse and frequency operation modes. RVDS are indispensable for protective devices of RPA and REA.

The article examines the main areas of improving the occupational health and safety system in 2025. The challenges facing enterprises, the introduction of a risk-oriented approach, digitalization of safety management, the development of a safety culture and the use of innovative technologies are discussed. The historical evolution of occupational health and safety, its role in the formation of a modern OHS system, as well as development prospects are considered. Emphasis is placed on the importance of integrating new methods to create a safe production environment and sustainable development of enterprises.

The article analyzes the basis for termination of an employment contract upon the occurrence of emergency circumstances due to natural phenomena, after attacks by the Armed Forces of Ukraine, etc. The author argues for the conditions for the application of the provisions of Part 2 of Article 157 and paragraph 7 of Part 1of Article 83 of the Labor Code of the Russian Federation, depending on the specific situation. The procedurefor termination of an employment contract in case of destruction of a place of work due to the occurrenceof emergency situations is being studied. Based on the conducted research, recommendations are made for the revision of clause 7, Part 1 of Article 83 of the Labor Code of the Russian Federation.