title: ÐÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ðµ ÑÐ°Ð±Ð¾ÑÑ ÑÐ¸ÑÐ¸ÑÑÐ¾ÑÐ½Ð¾Ð³Ð¾ Ð²ÑÑÐ¾ÐºÐ¾Ð²Ð¾Ð»ÑÑÐ½Ð¾Ð³Ð¾ Ð²ÑÐºÐ»ÑÑÐ°ÑÐµÐ»Ñ Ð² ÐºÐ¾Ð½ÑÑÑÐµ ÐºÐ¾Ð¼Ð¼ÑÑÐ°ÑÐ¸Ð¸ ÑÑÐ°Ð½ÑÑÐ¾ÑÐ¼Ð°ÑÐ¾ÑÐ° Ð´Ð»Ñ Ð´ÑÐ³Ð¾Ð²Ð¾Ð¹ ÑÑÐ°Ð»ÐµÐ¿Ð»Ð°Ð²Ð¸Ð»ÑÐ½Ð¾Ð¹ Ð¿ÐµÑÐ¸
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: Investigation of the operation of a solid state switchgear in the switching circuit of a transformer for an arc steel-smelting furnace
Creators: name: ÐÐ¸ÑÑÐ°Ð½Ð¾Ð², ÐÐ»ÐµÐ±
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Ð¸ÑÐ¸ÑÑÐ¾ÑÐ½ÑÐ¹ Ð²ÑÐºÐ»ÑÑÐ°ÑÐµÐ»Ñ
Â«MatlabÂ»
Ð´ÑÐ³Ð¾Ð²Ð°Ñ ÑÑÐ°Ð»ÐµÐ¿Ð»Ð°Ð²Ð¸Ð»ÑÐ½Ð°Ñ Ð¿ÐµÑÑ
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solid state switchgear
arc steel-smelting furnace
limiting the switching current of the transformer

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description: The topic of the final qualifying work: Â«Investigation of the operation of a solid state switchgear in the switching circuit of a transformer for an arc steel-smelting furnaceÂ» The work considers technical solutions related to the development of a switch for switching the transformer of an arc steel-smelting furnace (EAF) based on a thyristor non-contact device. The work reflects: 1. Features of a sharply variable load of an arc steel-smelting furnace 2. Requirements for the characteristics of the circuit breaker. 3. Choice of the block diagram of the switch. 4. Calculations of the main parameters of the switch elements. 5. Methods for limiting current surges when turning on a furnace transformer. 6. Requirements for the circuit breaker control algorithm. 7. Analysis of the weight and size parameters of the circuit breaker. The work uses calculations on the furnace load model developed by the author on the basis of the MATLAB platform. The result of the work is the development of an alternative switching device for a furnace transformer with increased cycle resistance, which is necessary for use in the domestic industry under the import substitution program.