title: ÐÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ðµ Ð¿ÐµÑÐµÐ½Ð°Ð¿ÑÑÐ¶ÐµÐ½Ð¸Ð¹ Ð² ÑÐ¸ÑÑÐµÐ¼Ðµ ÑÐ»ÐµÐºÑÑÐ¾ÑÐ½Ð°Ð±Ð¶ÐµÐ½Ð¸Ñ Ð¼ÐµÑÐ°Ð»Ð»ÑÑÐ³Ð¸ÑÐµÑÐºÐ¾Ð³Ð¾ ÐºÐ¾Ð¼Ð±Ð¸Ð½Ð°Ñ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: Study of overvoltages in the power supply circuit of a metallurgical plant
Creators: name: ÐÑÑÐ³ÐµÐ½, ÐÐ¸Ð½Ð°
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: ÐºÐ¾Ð¼Ð¼ÑÑÐ°ÑÐ¸Ð¾Ð½Ð½ÑÐµ Ð¿ÐµÑÐµÐ½Ð°Ð¿ÑÑÐ¶ÐµÐ½Ð¸Ñ
ÐÐÐ
RC-ÑÐµÐ¿Ð¸
Ð½ÐµÐ»Ð¸Ð½ÐµÐ¹Ð½Ð°Ñ Ð½Ð°Ð³ÑÑÐ·ÐºÐ°
Ð½ÐµÐ¹ÑÑÐ°Ð»Ñ
ÑÐµÐ·Ð¸ÑÑÐ¸Ð²Ð½Ð¾Ðµ Ð·Ð°Ð·ÐµÐ¼Ð»ÐµÐ½Ð¸Ðµ Ð½ÐµÐ¹ÑÑÐ°Ð»Ð¸
switching overvoltages
surge arresters
RC-chains
non-linear load
neutral
resistive neutral grounding

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description: The topic of this graduate qualification work is: the study of overvoltages in the power supply scheme of a metallurgical plant. The main task of this work is to analyze transients that occur when switching transformers in no-load mode, magnetizing current surge, as well as proposing ways to combat them. Since the large scale of enterprises, load variations, continuity of the technological process and severe operating conditions of electrical installations and electrical equipment create special requirements for power supply, it is necessary to minimize the interruption or failure of equipment, as well as to prevent situations that reduce the service life of equipment as much as possible. Due to the fact that in operation the insulation of electrical equipment of metallurgical plants is exposed to internal overvoltages in addition to the long operating voltage, the situation is exacerbated by external factors: increased temperature, emissions, pollution, etc. The combination of these problems leads to the conclusion that the issue of overvoltage limitation in the networks of metallurgical plants is really relevant. In the work was also considered a variant of implementation of resistive neutral with a comparative analysis and installation options, with attached recommendations for this circuit configuration.