During the operation of hydroelectric power plants, issues arise of improving the skills of hydroelectric power plant personnel, which can be ensured by the introduction of simulators for targeted training of personnel to work both in normal operating conditions and in pre-emergency and emergency situations as close as possible to real ones. It should be noted that the developers of simulators in the Russian energy sector peviously focused on the creation of simulators for thermal power plants, leaving hydroelectric power plants overshadowed. 
To date, TEST JSC has developed and implemented simulators for Irkutskaya, Bratskaya, Ust-Ilimskaya, Krasnoyarskaya, Ondskaya, Pavlovskaya and Yumaguzinskaya HPPs.
 This paper discusses the development for the Yumaguzinskaya HPP: a simulator with dynamic computer-aided mnemonic circuits of hydraulic units and electrical circuits of one of the Russian hydroelectric power plants, which will arouse interest among readers of the journal and potential customers. The article describes the prototype facility, the composition of the simulator, which includes a model of the facility and operating modes, a model of the control system, a model of the protection system, a model of locks, a model of emergency and warning alarms, describes in detail the educational and methodological support of the simulator complex, including models of training scenarios, an introductory model, a monitoring program, protocols and instructions. 
The organization of effective simulator training of operational and maintenance personnel on the simulator for operational switching of the Yumaguzinskaya HPP is achieved through the implementation in the simulator of the following main simulated subsystems: trainee's workplace model, instructor's workplace model, control object model, control system model, training system model. 
The hydroelectric power plant simulator presented in the paper is versatile and can find practical application both as a tool for training and examination of knowledge of operational personnel, and as a means for conducting occupational skills contests.

Analysis has been performed of the transmission of electric energy through the power distribution networks of PJSC Krasnoyarskenergosbyt over the period of 2016 – 2022. The structure of the company is considered, the characteristics of the main elements of the studied power networks are given, the degree of wear of the main electrical equipment is estimated. Based on the information from public media on the level of accidents in the company's power networks, an estimate has been made of the number of emergencies that occurred during the study period, the share of self-healing failures in the total amount of damage has been determined. The duration of interruptions of power supply to consumers, as well as the amount of undersupply of electric energy caused by these interruptions, has been estimated. The influence of the seasonal component on the number of emergencies during the study period is considered. Based on the data for the first half of 2022, the analysis of the main causes of damage to the elements of electrical networks has been performed. The classification of failures is made, with their main characteristics over the period under study considered. The possibility of using various methods of forecasting the reliability level of the power networks under consideration is evaluated. The results of the analysis of the use of statistical and cybernetic methods of preventive assessment of undersupply of electrical energy are presented. Based on the comparison of the results obtained, it is concluded that statistical methods are the most effective. The research uses general scientific methods, numerical methods of analysis, methods of the theory of electrical circuits, theories of mathematical statistics, data interpolation and forecasting. To visualize the results of the analysis, the technologies of the MATLAB graphics editor were used. The results obtained may be of interest to the heads of power grid companies, as well as researchers and engineers engaged in research in the field of reliability of power supply.

The question of the reliability of the operation of the exhaust devices almost always remains relevant during the operation of vacuum deaeration plants, since incorrect operation of the exhaust device entails violations of the vacuum deaeration process. As devices for the removal of non-condensing corrosive gases from vacuum deaerators, jet exhaust devices-ejectors are used, in which the kinetic energy of one stream is transferred to another stream by direct contact (mixing). According to the working body, ejectors are divided into water-jet and steam-jet. In this paper, the current scheme of inclusion of a water-jet ejector in the operation cycle of the Ulyanovsk CHP-2 is considered, problems and shortcomings of the scheme are identified, technical devices and their characteristics are described. The results of tests to determine the temperature and flow rate of the source water supplied to the gas separator tank to ensure stable operation of the EV-340 ejector are presented, which showed that the actual flow rate of the source chemically purified water to the gas separator tank is 17 m³/h, and the water temperature in the gas separator tank reaches 37°C, which exceeds the permissible temperature of the working water of the ejector by 7°C. An improved arrangement for the inclusion of a water-jet ejector in the operation cycle of the CHP is proposed, which provides sufficient cooling of the working water of the water-jet ejector by mixing this water with the source water, which is further cooled in the cooling tower. It is estimated that the new improved arrangement gives an economic effect of 2,5 million rubles/year.

The article proposes an object-oriented method for modeling steam turbine plants. The novelty of the method is in the application of a steam turbine model that takes into account variations in internal efficiency under variable operating modes.
The article presents the results of theoretical substantiation of nonlinear dependence of the power of the turbine compartments on the steam flow passing through them, based on the change in the internal efficiency of the stages under variable modes described by the Stodola-Flugel equation. An empirical dependence of the efficiency of the stage operation on the relative steam consumption is proposed. Recommendations on the use of empirical form in the development of models of steam turbine compartments are given. The empirical dependences of the relative internal efficiency of turbine compartments obtained from the results of thermal tests of an operating turbine unit are presented.
As a factor of practical significance of the research, a model of PT-60-130/13 type steam turbine plant has been developed involving the use of an object-oriented programming language. Recommendations on the description of classes of objects within the steam turbine plant. The developed STP model enables to simulate any operating modes depending on electrical and thermal loads, as well as to take into account the influence of deviations of external factors from nominal values when developing a system of corrections or estimating an increase in fuel consumption associated with these deviations.

This article discusses conceptual approaches to understanding the problem of international legal protection of Soviet monuments, military graves and places of memory of the Great Patriotic War (military memorial heritage (MMH) sites) in the form of the formation of a new sub-branch of international law — military memorial law, the necessity of introducing the concept of "military memorial heritage" into legal circulation is justified, a mechanism for the legal protection of MMH sites is proposed. The article outlines some issues of the formation of a special International Charter "On the protection of the military memorial heritage", and reveals a number of its legal aspectsworked out in social practice by the tools of public diplomacy during the International Relay of Memory and Gratitude "The Fatherland of a Feat — to the Fatherland of a Hero".
The material for the study is made up of the works of Russian and foreign scientists and social practitioners in the field of historical and social memory, considering monuments and memorial places symbolizing the exploits and victims of the Great Patriotic War as sites of a specific heritage of civilization that require special legal protection at both national and supranational and international levels. The experimental project in which the first regulatory standards were worked out in the field of perpetuating the memory of the defenders of the Fatherland in the projections of a number of inter-municipal agreements is the Russian electric power industry and the distribution power grid complex.
By the methods of participant observation and independent legal expert review, during the implementation of more than 20 inter-municipal agreements established on the basis of the feats of citizens of the USSR during the Great Patriotic War (40 villages and cities with a population of 2 million people), as well as by monitoring the situation with the preservation of monuments in more than 200 villages and cities of about 10 countries of the world, a number of regulatory norms have been worked for the future international legal act in the format of a Charter (or Convention), their description is given and the author's version of the proposed structure is formulated.