Study of the cascade method of lightning protection of 110-220 kv substations with cable and without cable protection on approaches of ohl
Jazyk: | ruština |
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Rok vydání: | 2022 |
Předmět: | |
DOI: | 10.18720/spbpu/3/2023/vr/vr23-238 |
Popis: | РнаÑÑоÑÑей ÑабоÑе оÑÑÑеÑÑвлено иÑÑледование молниезаÑиÑÑ Ð¿Ð¾Ð´ÑÑанÂÑий Ð¾Ñ Ð½Ð°Ð±ÐµÐ³Ð°ÑÑÐ¸Ñ Ð²Ð¾Ð»Ð½ Ñ Ð¿ÑÐ¸Ñ Ð¾Ð´ÑÑÐ¸Ñ Ð»Ð¸Ð½Ð¸Ð¹ Ñ ÑоÑки зÑÐµÐ½Ð¸Ñ ÑÑÑановки ÑÐ°ÐºÐ¸Ñ Ð·Ð°ÑиÑнÑÑ ÑÑÑÑойÑÑв, как нелинейнÑе огÑаниÑиÑели пеÑенапÑÑжений (ÐÐÐ). РезÑлÑÑаÑÑ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ ÑопоÑÑавлÑÑÑÑÑ Ñ ÑекомендаÑиÑми ÐУÐ, коÑоÑÑе в оÑновном оÑиенÑиÑÐ¾Ð²Ð°Ð½Ñ Ð½Ð° пÑименение ÑÑÑаÑевÑÐ¸Ñ Ð¸ поÑеÑÑвÑÐ¸Ñ ÑÐ²Ð¾Ñ Ð°ÐºÑÑÂалÑноÑÑÑ Ð²ÐµÐ½ÑилÑнÑÑ ÑазÑÑдников (Ð Ð).ÐÑÑледование молниезаÑиÑÑ Ð¿Ð¾Ð´ÑÑанÑий вÑполнено Ð´Ð»Ñ ÐºÐ»Ð°ÑÑов напÑÑÂÐ¶ÐµÐ½Ð¸Ñ 110 и 220 кРна пÑимеÑе ÑиповÑÑ ÑÑ ÐµÐ¼ оÑкÑÑÑÑÑ ÑаÑпÑеделиÑелÑнÑÑ ÑÑÑÑойÑÑв (ÐРУ): «Ðлок ÑÑанÑÑоÑмаÑоÑ-линиÑ» (110 и 220 кÐ), «ÐоÑÑик» (110 и 220 кÐ). ÐÑе ÑаÑÑÑÑÑ Ð¿ÑоводилиÑÑ Ñ Ð¿Ñименением пÑогÑаммного комплекÑа «Minsk». ÐпÑÐµÐ´ÐµÐ»ÐµÐ½Ñ Ð¿Ð¾ÐºÐ°Ð·Ð°Ñели надежноÑÑи молниезаÑиÑÑ Ð¿Ð¾Ð´ÑÑанÑий в заÂвиÑимоÑÑи Ð¾Ñ ÑазлиÑнÑÑ ÑакÑоÑов, а именно: ÑаÑÑÑоÑÐ½Ð¸Ñ Ð¼ÐµÐ¶Ð´Ñ Ð·Ð°ÑиÑаемÑм обÑекÑом и заÑиÑнÑм аппаÑаÑом, ÑопÑоÑÐ¸Ð²Ð»ÐµÐ½Ð¸Ñ Ð·Ð°Ð·ÐµÐ¼Ð»ÑÑÑÐ¸Ñ ÑÑÑÑойÑÑв Ð¾Ð¿Ð¾Ñ Ð½Ð° Ð¿Ð¾Ð´Ñ Ð¾Ð´Ðµ к подÑÑанÑии, налиÑÐ¸Ñ Ð¸Ð»Ð¸ оÑÑÑÑÑÑÐ²Ð¸Ñ Ð·Ð°ÑиÑÑнного ÑÑоÑового подÂÑ Ð¾Ð´Ð° и Ñипа ÑÑ ÐµÐ¼Ñ Ð¼Ð¾Ð»Ð½Ð¸ÐµÐ·Ð°ÑиÑÑ Ð¿Ð¾Ð´ÑÑанÑии. In this paper, the lightning protection of substations from incoming waves from incoming lines is investigated from the point of view of installing such protective devices as nonlinear surge arresters (OPN). The results of the study are compared with the recommendations of the PUE, which are mainly focused on the use of outdated and outdated valve arresters (RV). The study of lightning protection of substations was carried out for voltage classes 110 and 220 kV on the example of typical schemes of open switchgear (ORU): "Transformer-line block" (110 and 220 kV), "Bridge" (110 and 220 kV). All calculations were carried out using the Minsk software package. The reliability indicators of lightning protection of substations are determined depending on various factors, namely: the distance between the protected object and the protective apparatus, the resistance of the grounding devices of the supports on the approach to the substation, the presence or absence of a protected cable approach and the type of lightning protection scheme of the substation.     |
Databáze: | OpenAIRE |
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