Design of a block-type complete transformer substation 10 / 0.4 kV in the Kalininsky district of St. Petersburg
Jazyk: | ruština |
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Rok vydání: | 2021 |
Předmět: |
grounding device
substation маÑлÑнÑй ÑÑанÑÑоÑмаÑÐ¾Ñ ÑлекÑÑоÑнабжение short circuit поÑеÑи напÑÑÐ¶ÐµÐ½Ð¸Ñ Ð·Ð°Ð·ÐµÐ¼Ð»ÑÑÑее ÑÑÑÑойÑÑво коÑоÑкое замÑкание power supply oil transformer power losses ÑаÑпÑеделиÑелÑное ÑÑÑÑойÑÑво поÑеÑи моÑноÑÑи voltage losses switchgear подÑÑанÑÐ¸Ñ |
DOI: | 10.18720/spbpu/3/2021/vr/vr21-773 |
Popis: | Тема вÑпÑÑкной ÑабоÑÑ: «ÐÑоекÑиÑование блоÑной комплекÑной ÑÑанÑÑоÑмаÑоÑной подÑÑанÑии 10/0,4 кРв ÐалининÑком Ñайоне г. СанкÑ-ÐеÑеÑбÑÑг». ÐбÑÑм вÑпÑÑкной квалиÑикаÑионной ÑабоÑÑ ÑоÑÑавлÑеÑ: 80 ÑÑÑÐ°Ð½Ð¸Ñ ÑекÑÑа, 26 ÑиÑÑнков, 10 ÑаблиÑ, 32 ÑоÑмÑлÑ, 23 иÑÑоÑника лиÑеÑаÑÑÑÑ. ÐлÑÑевÑе Ñлова: ÑлекÑÑоÑнабжение, маÑлÑнÑй ÑÑанÑÑоÑмаÑоÑ, подÑÑанÑиÑ, поÑеÑи моÑноÑÑи, поÑеÑи напÑÑжениÑ, ÑаÑпÑеделиÑелÑное ÑÑÑÑойÑÑво, коÑоÑкое замÑкание, заземлÑÑÑее ÑÑÑÑойÑÑво. Ð¦ÐµÐ»Ñ Ð²ÑпÑÑкной квалиÑикаÑионной ÑабоÑÑ Ð·Ð°ÐºÐ»ÑÑаеÑÑÑ Ð² пÑоекÑиÑовании надежной и ÑовÑеменной ÑÑанÑÑоÑмаÑоÑной подÑÑанÑии в блоÑном иÑполнении, ÑабоÑаÑÑей на клаÑÑе напÑÑÐ¶ÐµÐ½Ð¸Ñ 10/0,4 кÐ. ÐÐ»Ñ Ð´Ð¾ÑÑÐ¸Ð¶ÐµÐ½Ð¸Ñ Ð¿Ð¾ÑÑавленной Ñели пÑоизведен ÑледÑÑÑий ÑÑд ÑлекÑÑоÑÐµÑ Ð½Ð¸ÑеÑÐºÐ¸Ñ ÑаÑÑеÑов: ⢠опÑеделение Ð½ÐµÐ¾Ð±Ñ Ð¾Ð´Ð¸Ð¼Ð¾Ð¹ ÑÑанÑÑоÑмаÑоÑной моÑноÑÑи Ð´Ð»Ñ Ð¿Ð¸ÑÐ°Ð½Ð¸Ñ ÑлекÑÑопÑиемников 1 и 2 каÑегоÑии надежноÑÑи; ⢠вÑÐ±Ð¾Ñ Ð¼Ð°Ñки ÑиловÑÑ Ð¿Ð¾Ð½Ð¸Ð¶Ð°ÑÑÐ¸Ñ ÑÑанÑÑоÑмаÑоÑов; ⢠вÑÐ±Ð¾Ñ Ð¾ÑÑ Ð¾Ð´ÑÑÐ¸Ñ ÐºÐ°Ð±ÐµÐ»ÑнÑÑ Ð»Ð¸Ð½Ð¸Ð¹, Ñ Ð¿Ð¾ÑледÑÑÑей пÑовеÑкой на допÑÑÑимÑе оÑноÑиÑелÑнÑе поÑеÑи напÑÑжениÑ; ⢠ÑаÑÑÐµÑ Ð¿Ð¾ÑеÑÑ Ð¼Ð¾ÑноÑÑи в кабелÑнÑÑ Ð»Ð¸Ð½Ð¸ÑÑ Ð¸ ÑиловÑÑ ÑÑанÑÑоÑмаÑоÑÐ°Ñ ; ⢠ÑаÑÑÐµÑ Ñоков коÑоÑкого замÑÐºÐ°Ð½Ð¸Ñ Ð½Ð° вÑÑокой и низкой ÑÑоÑÐ¾Ð½Ð°Ñ Ð½Ð°Ð¿ÑÑжениÑ; ⢠ÑаÑÑÐµÑ ÑопÑоÑÐ¸Ð²Ð»ÐµÐ½Ð¸Ñ Ð·Ð°Ð·ÐµÐ¼Ð»ÑÑÑего ÑÑÑÑойÑÑва; ⢠вÑÐ±Ð¾Ñ ÑлекÑÑообоÑÑÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ Ð¸ аппаÑаÑов заÑиÑÑ. Ðомимо ÑлекÑÑоÑÐµÑ Ð½Ð¸ÑеÑÐºÐ¸Ñ ÑаÑÑеÑов в ÑабоÑе пÑоизведен анализ ÑекÑÑего ÑоÑÑоÑÐ½Ð¸Ñ ÑлекÑÑоÑеÑей в г. Ð¡Ð°Ð½ÐºÑ â ÐеÑеÑбÑÑг и пÑоÑеÑÑ Ð¿Ð¾ÑÑапного ÑÑÑоиÑелÑÑÑва блоÑнÑÑ ÑÑанÑÑоÑмаÑоÑнÑÑ Ð¿Ð¾Ð´ÑÑанÑий. The theme of the final work: "Design of a block complete transformer substation 10 / 0.4 kV in the Kalininsky district of St. Petersburg." The volume of the thesis is: 80 pages of text, 26 figures, 10 tables, 32 formulas, 23 sources of literature. Key words: power supply, oil transformer, substation, power losses, voltage losses, switchgear, short circuit, grounding device. The purpose of this diploma project is to design a reliable and modern transformer substation in modular design, operating at a voltage class of 10 / 0.4 kV. To achieve this goal, the following series of electrical calculations was performed: ⢠determination of the required transformer capacity for power supply of power consumers of 1 and 2 categories of reliability; ⢠selection of the brand of power step-down transformers; ⢠selection of outgoing cable lines, followed by checking for permissible relative voltage losses; ⢠calculation of power losses in cable lines and power transformers; ⢠calculation of short-circuit currents on the high and low sides of the voltage; ⢠calculation of the resistance of the grounding device; ⢠selection of electrical equipment and protection devices. In addition to electrical calculations, the diploma project analyzed the current state of power grids in St. Petersburg and the process of phased construction of block transformer substations. |
Databáze: | OpenAIRE |
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