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The errors between the design parameters and experiment data of the power transformer in idle mode can reach 15-20% or more, because engineering techniques do not take into account in full all factors. Therefore, the aim of the work is to develop improved circuit models, which are interconnected with spatial electromagnetic field models. These models consider the active part design of the transformer, the hysteresis of the nonlinear magnetic properties of electrical steel, asymmetry and non-sinusoidal phase-to-phase currents and provide high accuracy determination of rated idling parameters of transformer. To research the idle mode of transformer, the circuit models were conjugated with 3D and 2D magnetic field models. Their numerical implementation was carried out by means of finite element method on the example of a three-phase power transformer (10 kVA, 380/220 V). The reduction of the computational time was performed by doubling cancellation of the volume of 3D three-phase transformer domain and the conformal transition to the 2D geometric domain. Determination of the effective magnetic characteristics of electrical steel according to single-phase idling experiment data, allows to take into account the combined effect of hysteresis and eddy currents, design and technological factors on the specific losses and magnetization power. This ensures high accuracy of the description of the interrelation between magnetic flux density and magnetic field strength, reducing of current error and relative errors in the calculation of idling losses up to 1.41% and 1.2% for the 3D model and up to 5.18% and 3.2% for the 2D model.

The article examines potential integration of government initiatives in the field of environmental protection and policies aimed at the development of energy sector of the Russian Federation. The analysis, carried out on the basis of national ecological projects and the energy strategy of the Russian Federation, reveals that the two planning areas are practically disjoint. This indicates that integrated approach towards solving the issue of global warming through modification of energy supply and demand patterns, which is dominant in many Western countries, has little political support in Russia. The article concludes that the goal to combat climate change, pronounced by the Russian government, has not been followed through in the factual government plans.

Innovations in the nuclear industry are inextricably linked to economic evaluations of new engineering solutions. To improve the economic literacy of students of engineering areas of training at NRNU MEPhI, an innovative course on the economics of digital design and engineering in the nuclear industry has been implemented since 2016. The structure of the interdisciplinary course is modular, which makes it possible to involve in the teaching activity specialists who are most competent in the respective areas of training. To increase the involvement of students, a software and hardware complex has been developed, which provides through the wi-fi classroom system a permanent online contact of the teacher with students. During the lectures, students respond in real time through their gadgets (smartphones, laptops, tablets, etc.) to 5 questions on the materials of each specific lecture, and during the workshops - solve about a dozen problems in the explanations of the teacher also through gadgets. This at the end of each lesson allows the teacher on his laptop not only to have a list of responses of each student to the second, but also to adjust the subsequent sessions to the understanding of certain aspects of the course. The work of students in the network allowed even as a creative task to develop a technological package «Nuclear technology-2035», showing a promising vision of the development of the domestic nuclear industry. In 2016-2020, more than 1400 students of various engineering specialties were trained. Statistical processing of the results of the control of the educational process allows us to make preliminary conclusions about the abilities (giftedness) of students to certain activities described, including in the course materials. Software and hardware complex can be used for other educational programs, which, depending on the subject area of study allows you to form a kind of «digital portrait» of each student Инновации в атомной отрасли неразрывно связаны с экономическими оценками новых инженерных решений. Для повышения экономической грамотности студентов инженерных направлений подготовки в НИЯУ МИФИ разработан и около пяти лет успешно реализуется инновационный междисциплинарный курс «Экономика цифрового проектирования и конструирования в атомной отрасли». Модульная структура курса позволяет привлекать специалистов, наиболее компетентных в соответствующих направлениях подготовки. Для повышения вовлеченности студентов создан программно-технический комплекс, обеспечивающий постоянный интернет-контакт преподавателя со студентами. Студенты в режиме реального времени с помощью своих гаджетов (смартфонов, планшетов и пр.) дают ответы на вопросы в ходе лекций, решают задачи в ходе практикумов. В конце занятия преподаватель имеет ведомость ответов каждого студента с точностью до секунды и может корректировать последующие занятия с учетом понимания тех или иных аспектов курса. Работа студентов в сети позволила даже в качестве творческого задания разработать технологический пакет «Ядерные технологии-2035», показывающий перспективное видение студентами развития отечественной атомной промышленности. В 2016-2020 гг. обучение прошли более 1400 студентов различных инженерных специальностей. Обработка результатов контроля учебного процесса позволяет делать предварительные выводы о способностях (одаренности) студентов к определенным видам деятельности, описанным, в том числе, в материалах курса. Программно-технический комплекс может быть использован и для других образовательных программ, что в зависимости от предметной области обучения позволяет формировать своеобразный «цифровой портрет» каждого студента ИННОВАЦИИ, Выпуск 4 (258) 2021, Pages 59-66