title: ÐÐ°ÑÐ¸ÑÐ° ÑÐµÑÐµÐ¹ 10 ÐºÐ Ð¾Ñ Ð³ÑÐ¾Ð·Ð¾Ð²ÑÑ Ð¿ÐµÑÐµÐ½Ð°Ð¿ÑÑÐ¶ÐµÐ½Ð¸Ð¹
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: Protection of 10 kV networks against lightning overvoltages
Creators: name: Ð¤Ð¸Ð»Ð¸Ð¿Ð¿Ð¾Ð², ÐÐ»Ñ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: 2021
Subjects: Ð­Ð»ÐµÐºÑÑÐ¸ÑÐµÑÐºÐ¸Ðµ ÑÐµÑÐ¸
Ð¸Ð½Ð´ÑÐºÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð½ÑÐµ Ð¿ÐµÑÐµÐ½Ð°Ð¿ÑÑÐ¶ÐµÐ½Ð¸Ñ
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ÑÐ°Ð·ÑÑÐ´Ð½Ð¸Ðº
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Ð³Ð°ÑÐµÐ½Ð¸Ðµ ÑÐ»ÐµÐºÑÑÐ¸ÑÐµÑÐºÐ¾Ð¹ Ð´ÑÐ³Ð¸
Ð¸Ð¼Ð¿ÑÐ»ÑÑÐ½ÑÐ¹ ÑÐ¾Ðº
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description: The theme of the final qualifying work: "Protection of 10 kV networks against lightning overvoltages." The master's thesis is devoted to the development of a multi-chamber arrester for the protection of 10 kV overhead lines against induced overvoltages. The tasks of this work were: 1) A a review of scientific and technical literature. 2) Analysis of the means of protection of overhead power lines against induced overvoltages. 3) Formation of technical requirements for the developed arrester. 4) Calculation of characteristics of impulse effects on the arrester installed on the 6-10 kV overhead line. 5) Calculation of electrical characteristics of the network when the arrester is triggered. 6) Development of design of the arrester. 7) Carrying out research electrical tests. The work was carried out on the basis of JSC NPO Streamer: where information was obtained on various types of arresters to compare their characteristics with all known lightning protection hardware, received oscillograms of voltage and current during arc extinguishing, mathematical modeling was performed in ATP-EMTP to determine the probability of high current values flowing through the arrester in the 10 kV network, tests and design of test samples of the arrester were carried out in the laboratory and at the production of NPO Streamer. As a result, the types of overvoltage, all available lightning protection hardware were considered, 2 types of arc extinguishing were investigated. The probability of the occurrence of high values of the current flowing through the arrester at induced overvoltages is estimated, and a test program for the arrester is formed. The design of the arrester has been developed, a 3D model has been formed and test samples have been manufactured. Breaking capacity tests of the samples were carried out, the samples were successfully tested. The main result of the work is the use of the developed arresters on 10 kV overhead lines for protection against induced overvoltage. Based on the results of research, it can be concluded that arresters have great development prospects and successfully perform their functions on 10 kV overhead line.