title: Ð Ð°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ° Ð¼Ð¸ÐºÑÐ¾Ð¿ÑÐ¾ÑÐµÑÑÐ¾ÑÐ½Ð¾Ð¹ Ð´Ð¸ÑÑÐµÑÐµÐ½ÑÐ¸Ð°Ð»ÑÐ½Ð¾Ð¹ Ð·Ð°ÑÐ¸ÑÑ ÑÑÐ°Ð½ÑÑÐ¾ÑÐ¼Ð°ÑÐ¾Ñ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 microprocessor-based differential protection of the transformer
Creators: name: ÐÐ°ÑÐ´Ð°ÑÐµÐ²Ð¸Ñ, Ð¡ÐµÐ¼ÑÐ½
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: Ð´Ð¸ÑÑÐµÑÐµÐ½ÑÐ¸Ð°Ð»ÑÐ½Ð°Ñ Ð·Ð°ÑÐ¸ÑÐ°
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Ð°Ð»Ð³Ð¾ÑÐ¸ÑÐ¼ ÑÐ°Ð±Ð¾ÑÑ Ð´Ð¸ÑÑÐµÑÐµÐ½ÑÐ¸Ð°Ð»ÑÐ½Ð¾Ð¹ Ð·Ð°ÑÐ¸ÑÑ
differential protection
transformer
microcontroller
microprocessor terminal
operation algorithm of differential protection

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description: In this qualification work we analyzed the operation of the longitudinal differential protection of a two-winding transformer from the point of view of processing input analog values and algorithms for the operation of relay protection, and identified design features of a microprocessor-based differential protection device for a two-winding transformer. At the beginning of the work, a description of the operating modes of the protected object itself and the requirements for the organization of its relay protection were given. To represent and understand the specifics of the operation of the longitudinal differential protection of a transformer in an electrical network with a grounded neutral, a diagram of the electrical network area was drawn up, the main equipment was selected, and the necessary electrical equivalent circuits were drawn up. To calculate the differential protection settings, the transverse asymmetry modes in the electrical network for the protected object were calculated. As a result of the work, the stages of development of a microprocessor-based device for transformer differential protection are described, which can serve as the basis for the development of a real device.