title: ÐÐ½Ð°Ð»Ð¸Ð· Ð¿ÐµÑÐµÑ Ð¾Ð´Ð½ÑÑ Ð¿ÑÐ¾ÑÐµÑÑÐ¾Ð² Ð¿ÑÐ¸ ÐºÐ¾Ð¼Ð¼ÑÑÐ°ÑÐ¸ÑÑ ÑÑÐ°Ð½ÑÑÐ¾ÑÐ¼Ð°ÑÐ¾ÑÐ¾Ð² 110 ÐºÐ ÑÐµÑÑÐ¾ÑÐ¿Ð»Ð°Ð²Ð½ÑÑ ÑÑÐ´Ð½Ð¾ÑÐµÑÐ¼Ð¸ÑÐµÑÐºÐ¸Ñ Ð¿ÐµÑÐµÐ¹
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¼Ð°Ð³Ð¸ÑÑÑÐ°
titleType: Subtitle
title: Analysis of transient processes during switching transformers 110 kV ferroalloy ore-thermal furnaces
Creators: name: Ð§ÐµÐ¿ÐµÐ»ÐºÐ¸Ð½Ð°, ÐÐ½Ð°ÑÑÐ°ÑÐ¸Ñ
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2023
Subjects: ÑÑÐ´Ð½Ð¾ÑÐµÑÐ¼Ð¸ÑÐµÑÐºÐ°Ñ Ð¿ÐµÑÑ
ÑÑÐ°Ð½ÑÑÐ¾ÑÐ¼Ð°ÑÐ¾Ñ
ÐºÐ¾Ð¼Ð¼ÑÑÐ°ÑÐ¸Ñ
Ð¿ÐµÑÐµÑ Ð¾Ð´Ð½ÑÐµ Ð¿ÑÐ¾ÑÐµÑÑÑ
ÑÑÑÑÐ¾Ð¹ÑÑÐ²Ð¾ Ð¿ÑÐ¾Ð´Ð¾Ð»ÑÐ½Ð¾Ð¹ ÐºÐ¾Ð¼Ð¿ÐµÐ½ÑÐ°ÑÐ¸Ð¸
Ð¿ÐµÑÐµÐ½Ð°Ð¿ÑÑÐ¶ÐµÐ½Ð¸Ñ
ÑÐ¾Ðº Ð½Ð°Ð¼Ð°Ð³Ð½Ð¸ÑÐ¸Ð²Ð°Ð½Ð¸Ñ
ore-thermal furnace
transformer
switching
transient processes
series compensation device
overvoltages
magnetizing current

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description: The aim of the work was to study transient processes during switching transformers of ferroalloy ore-thermal furnaces. In accordance with the goal, the following tasks are formulated: 1. development of a mathematical model of a 110 kV furnace transformer, consisting of a main transformer with a control winding and a booster transformer with a connected series compensation device (PCD); 2. performing calculations of steady-state modes with an assessment of the correctness of the developed model by comparing the results obtained with the nameplate data of the transformer; 3. calculation of transient modes of switching on and off the transformer at various states of the CPC and their comparison with full-scale oscillograms; 4. development of recommendations for reducing the levels of switching surges. The scientific novelty is as follows: on the basis of existing mathematical modeling packages, a model of a furnace transformer has been developed, consisting of a main transformer with a control winding and a booster transformer with a connected series compensation device (PCD). The analysis of the obtained research results can be used to improve the reliability of the main and auxiliary technological equipment, as it allows you to simulate options for protection against emerging overvoltages. The choice of topic is connected with the opportunity to study in more detail the nature of overvoltages during switching in systems that feed ore-thermal furnaces (RTF), including using modern techniques. Now, using the latest software products, overvoltage research can reveal new possibilities not previously touched upon. In addition to the great applied value of the research carried out in the work for various industries, the use of new methods is a tool for confirming fundamental research. Thus, the relevance of the topic is determined both by the needs of research in the field of studying overvoltages, and by numerous practically important applications of the results of the research obtained.