
Ð’ данной работе мною была раÑÑмотрена возможноÑть модернизации ÑлектричеÑкой чаÑти ТÐЦ, опираÑÑÑŒ на ÑущеÑтвующее ОРУ-110кВ. ОтталкиваÑÑÑŒ от необходимоÑти ÑƒÐ²ÐµÐ»Ð¸Ñ‡ÐµÐ½Ð¸Ñ Ð³ÐµÐ½ÐµÑ€Ð¸Ñ€ÑƒÑŽÑ‰Ð¸Ñ… мощноÑтей в ÑвÑзи Ñ ÑƒÐ²ÐµÐ»Ð¸Ñ‡ÐµÐ½Ð¸ÐµÐ¼ чиÑла потребителей, был оÑущеÑтвлен выбор генераторного оборудованиÑ. Далее были подобраны ÑоответÑтвующие Ñиловые транÑформаторы, ÑпоÑобные перераÑпределÑть ÑлектроÑнергию от генераторов. Ðа оÑновании выбранного Ñилового Ð¾Ð±Ð¾Ñ€ÑƒÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ Ð±Ñ‹Ð»Ð° ÑоÑтавлена Ñхема Ð·Ð°Ð¼ÐµÑ‰ÐµÐ½Ð¸Ñ ÑлектричеÑкой чаÑти Ð´Ð»Ñ Ñ€Ð°Ñчетов токов короткого замыканиÑ. ÐžÐ¿ÐµÑ€Ð¸Ñ€ÑƒÑ Ð¿Ð¾Ð»ÑƒÑ‡ÐµÐ½Ð½Ñ‹Ð¼Ð¸ значениÑми токов короткого замыканиÑ, был выполнен выбор коммутационного ÑлектрооборудованиÑ, токопроводÑщих шин. Также в работу включена чаÑть иÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ Ñ€ÐµÐ»ÐµÐ¹Ð½Ð¾Ð¹ защиты Ñнергоблока, Ð¿Ñ€ÐµÐ´Ð¿Ð¾Ð»Ð°Ð³Ð°ÑŽÑ‰Ð°Ñ Ñ€Ð°Ð·Ñ€Ð°Ð±Ð¾Ñ‚ÐºÑƒ проекта Ð¿Ñ€ÐµÐ´Ð¾Ñ‚Ð²Ñ€Ð°Ñ‰ÐµÐ½Ð¸Ñ Ð¸ защиты от аварийных и ненормальных режимов работы. Проанализированы оÑновные нормативные документы и техничеÑÐºÐ°Ñ Ð»Ð¸Ñ‚ÐµÑ€Ð°Ñ‚ÑƒÑ€Ð° по данной тематике. Ð”Ð»Ñ Ð·Ð°Ñ‰Ð¸Ñ‚Ñ‹ блока был выбран терминал отечеÑтвенного Ð¿Ñ€Ð¾Ð¸Ð·Ð²Ð¾Ð´Ð¸Ñ‚ÐµÐ»Ñ ÐПП «ÐКРл. Был определен ÑоÑтав оÑновных, а также резервных защит Ñлементов. Ð’ ÑоответÑтвии Ñ Ð¿Ð¾Ð»ÑƒÑ‡ÐµÐ½Ð½Ñ‹Ð¼Ð¸ ранее значениÑми токов короткого замыканиÑ, а также ÑƒÑ‡Ð¸Ñ‚Ñ‹Ð²Ð°Ñ Ð´Ñ€ÑƒÐ³Ð¸Ðµ уÑловиÑ, были раÑÑчитаны уÑтавки ÑÑ€Ð°Ð±Ð°Ñ‚Ñ‹Ð²Ð°Ð½Ð¸Ñ ÑƒÑтройÑтв релейной защиты.
In this work, I considered the possibility of upgrading the electrical part of the TPP, relying on the existing 110 kV outdoor switchgear. Based on the needs of increasing generating capacities in connection with an increase in the number of consumers, a choice was made of generator equipment. Next, the corresponding power transformers were selected, capable of redistributing electricity from generators. Based on the selected power equipment, an electrical equivalent circuit was compiled for calculating short circuit currents. Using the obtained values of short-circuit currents, the choice was made of switching electrical equipment, conductive buses. The article also includes a part of the research of relay protection of the power unit, which involves the development of a project to prevent and protect against emergency and abnormal operating modes. The main regulatory documents and technical literature on this topic are analyzed. To protect the unit, the terminal of the domestic manufacturer NPP EKRA was chosen. The composition of the main as well as reserve protection elements was determined. In accordance with the previously obtained values of short-circuit currents, and also taking into account other conditions, the settings of the operation of relay protection devices were calculated.
микÑопÑоÑеÑÑоÑ, relay protection, CHP, модеÑнизаÑиÑ, ÑÐµÐ»ÐµÐ¹Ð½Ð°Ñ Ð·Ð°ÑиÑа, terminal, блок генеÑаÑоÑ-ÑÑанÑÑоÑмаÑоÑ, коÑоÑкое замÑкание, unit generator-transformer, microprocessor, short closing, ÑеÑминал, ТÐЦ, modernization
микÑопÑоÑеÑÑоÑ, relay protection, CHP, модеÑнизаÑиÑ, ÑÐµÐ»ÐµÐ¹Ð½Ð°Ñ Ð·Ð°ÑиÑа, terminal, блок генеÑаÑоÑ-ÑÑанÑÑоÑмаÑоÑ, коÑоÑкое замÑкание, unit generator-transformer, microprocessor, short closing, ÑеÑминал, ТÐЦ, modernization
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