title: ÐÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ðµ Ð²Ð»Ð¸ÑÐ½Ð¸Ñ Ð´Ð¸Ð½Ð°Ð¼Ð¸ÑÐµÑÐºÐ¸Ñ Ñ Ð°ÑÐ°ÐºÑÐµÑÐ¸ÑÑÐ¸Ðº ÐÐÐ Ð½Ð° Ð¼Ð¾Ð»Ð½Ð¸ÐµÐ·Ð°ÑÐ¸ÑÑ ÑÐ»ÐµÐºÑÑÐ¸ÑÐµÑÐºÐ¸Ñ Ð¼Ð°ÑÐ¸Ð½
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 the influence of the dynamic characteristics of surge arresters on the lightning protection of electrical machines
Creators: name: ÐÐ¸ÐºÑÐ¸Ð¼Ð¸ÑÐ¾Ð², Ð Ð°Ð´Ð¼Ð¸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: 2022
Subjects: ÐÐµÑÐµÐ½Ð°Ð¿ÑÑÐ¶ÐµÐ½Ð¸Ñ (ÑÐ»ÐµÐºÑÑ.)
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Ð»Ð¸Ð½Ð¸Ñ
lightning protection
line

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description: Topic of the final qualifying work:"Study of the influence of the dynamic characteristics of surge arresters on the lightning protection of electrical machines". The scope of the project is: 92 pages, 51 drawings, 20 names of literary sources. Key words: surge arrester, surge arrester, overvoltage, overhead line, grounding, dynamic response of surge arrester, electric motor. The purpose of the final qualification work is the scientific substantiation and practical study of a new approach to the calculation of surge suppressors using a dynamic characteristic, or in other words, their guaranteed limitation to a level that the insulation can withstand for a given voltage class. In addition, motor protection is of great relevance, since 15-20% of all motors are damaged due to overvoltages that occur in the network, including lightning. The foregoing determines the relevance of the research carried out in this work aimed at improving the reliability of equipment operation by reducing the occurrence of external and internal overvoltages. To complete the study, you must: -Â Build a model of a 10 kV overhead line on 35 kV supports; -Â Calculate the equivalent circuit of a 110/10 kV transformer; -Â Design an equivalent circuit for the support insulation; -Â Construct a schematic diagram of the power supply of electrical machines when powered directly from a 10 kV line and when transmitted through a 110 kV overhead line through a step-down transformer; -Â Determine the most advantageous location of protective equipment.In the course of the work, a general characteristic of the system was given, the voltage values on the engines were measured when various protective devices were installed.