title: Ð Ð°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ° Ð¼Ð¾Ð´ÐµÐ»Ð¸ ÑÐ»ÐµÐºÑÑÐ¾Ð¼Ð°Ð³Ð½Ð¸ÑÐ½Ð¾Ð³Ð¾ Ð¿ÑÐµÐ¾Ð±ÑÐ°Ð·Ð¾Ð²Ð°ÑÐµÐ»Ñ ÑÐ¾ÐºÐ° Ð´Ð»Ñ ÑÐµÐ¿ÐµÐ¹ Ð Ð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: Development of a model of an electromagnetic current converter for relay protection and automation circuits
Creators: name: ÐÐ½ÑÐ¾Ð½Ð¾Ð², ÐÑÑÑÐ¼
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: 2021
Subjects: ÐÑÐµÐ¾Ð±ÑÐ°Ð·Ð¾Ð²Ð°ÑÐµÐ»Ð¸ ÑÐ»ÐµÐºÑÑÐ¾Ð¼Ð°Ð³Ð½Ð¸ÑÐ½ÑÐµ
Ð¢ÑÐ°Ð½ÑÑÐ¾ÑÐ¼Ð°ÑÐ¾ÑÑ ÑÐ¾ÐºÐ°
ÐÑÑÐ¸ÑÐ»Ð¸ÑÐµÐ»ÑÐ½ÑÐµ Ð¼Ð°ÑÐ¸Ð½Ñ ÑÐ»ÐµÐºÑÑÐ¾Ð½Ð½ÑÐµ Ð¿ÐµÑÑÐ¾Ð½Ð°Ð»ÑÐ½ÑÐµ
Ð¾ÑÐ½Ð¾Ð²Ð½Ð°Ñ ÐºÑÐ¸Ð²Ð°Ñ Ð½Ð°Ð¼Ð°Ð³Ð½Ð¸ÑÐ¸Ð²Ð°Ð½Ð¸Ñ
ÑÐ°ÑÑÐ½ÑÐ¹ ÑÐ¸ÐºÐ» Ð¿ÐµÑÐµÐ¼Ð°Ð³Ð½Ð¸ÑÐ¸Ð²Ð°Ð½Ð¸Ñ
Ð¸Ð¼Ð¸ÑÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ Ð¼Ð¾Ð´ÐµÐ»Ñ Ð¢Ð¢
main magnetization curve
private remagnetization cycle
TT simulation model

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description: This work is devoted to the development of an electromagnetic converter model based on experimental core characteristics. The tasks that were solved during the study: â¢ study of the effect of magnetizing current on the operation of relay protection and automation; â¢ review of existing models of electromagnetic converters; â¢ revealing the empirical regularities of the remagnetization process; â¢ development of an electromagnetic converter model based on experimental magnetization characteristics. As a result, a model of electromagnetic converter was developed in MATLAB language, based on natural characteristics of core steel. The principle of construction of partial cycles of remagnetization was based on Madelung's rules. During experiments, some discrepancies with the Madelung rules were found and some improvements in the construction of partial cycles of remagnetization were given. The numerical results of the model were verified using typical transient pro-cesses and the following results were obtained: â¢ the demagnetization time according to the model and according to the experimental data when the prototype is switched to sinusoidal current differs by no more than 11 %; â¢ the difference of the total error according to the model and the experimental data is not more than 5%.