Calculations of settings for relay protection and automation devices of autotransformer 750/330/6 kV
| Jazyk: | ruština |
|---|---|
| Rok vydání: | 2022 |
| Předmět: |
ÑÑÑановивÑийÑÑ Ñежим
relay protection авÑоÑÑанÑÑоÑмаÑÐ¾Ñ differential protection autotransformer protection setting ÑÐµÐ»ÐµÐ¹Ð½Ð°Ñ Ð·Ð°ÑиÑа диÑÑеÑенÑиалÑÐ½Ð°Ñ Ð·Ð°ÑиÑа short circuit currents Ñоки коÑоÑкого замÑÐºÐ°Ð½Ð¸Ñ ÑÑÑавка заÑиÑÑ |
| DOI: | 10.18720/spbpu/3/2023/vr/vr23-651 |
| Popis: | ÐÐ°Ð½Ð½Ð°Ñ ÑабоÑа напÑавлена на ÑаÑÑÐµÑ ÑÑÑавок ÑÑÑÑойÑÑв Ð ÐРавÑоÑÑанÑÑоÑмаÑоÑа моÑноÑÑÑÑ 333 ÐÐÐ.ÐÑли пÑÐ¾Ð¸Ð·Ð²ÐµÐ´ÐµÐ½Ñ ÑаÑÑеÑÑ: ÑÑÑановивÑегоÑÑ Ñежима ÑабоÑÑ ÑиÑÑемÑ, Ñоков коÑоÑкого замÑÐºÐ°Ð½Ð¸Ñ Ð°Ð½Ð°Ð»Ð¸ÑиÑеÑким ÑпоÑобом и Ñ Ð¿Ð¾Ð¼Ð¾ÑÑÑ Ð¿ÑогÑаммного комплекÑа RastrWin.ÐÑÐ¿Ð¾Ð»Ð½ÐµÐ½Ñ ÑаÑÑеÑÑ Ð¾ÑновнÑÑ Ð¸ ÑезеÑвнÑÑ Ð·Ð°ÑÐ¸Ñ Ð°Ð²ÑоÑÑанÑÑоÑмаÑоÑ. ÐпÑÐµÐ´ÐµÐ»ÐµÐ½Ñ ÑÑÑавки ÑоковÑÑ , диÑÑеÑенÑиалÑнÑÑ Ð¸ диÑÑанÑионнÑÑ Ð·Ð°ÑÐ¸Ñ Ð°Ð²ÑоÑÑанÑÑоÑмаÑоÑа. ÐÑÐ¾Ð¸Ð·Ð²ÐµÐ´ÐµÐ½Ñ Ð¿ÑовеÑки ÑÑвÑÑвиÑелÑноÑÑи оÑновнÑÑ Ð¸ ÑезеÑвнÑÑ Ð·Ð°ÑÐ¸Ñ Ð·Ð°ÑиÑаемого авÑоÑÑанÑÑоÑмаÑоÑа.ÐÑоизведена пÑовеÑка обеÑпеÑÐµÐ½Ð¸Ñ ÑÑебований к ÑÑанÑÑоÑмаÑоÑам Ñока в ÑÑ ÐµÐ¼Ð°Ñ Ð´Ð¸ÑÑеÑенÑиалÑной заÑиÑÑ Ð²Ñполненной на базе микÑопÑоÑеÑÑоÑнÑÑ ÑÑÑÑойÑÑв пÑоизводÑÑва SIEMENS: поÑÑиÑÐ°Ð½Ñ Ð¼Ð¾ÑноÑÑи вÑоÑиÑнÑÑ Ð¾Ð±Ð¼Ð¾Ñок, пÑоизведена пÑовеÑка ÑÑанÑÑоÑмаÑоÑов Ñока по ÑÑÐ»Ð¾Ð²Ð¸Ñ Ð´Ð¾Ð¿ÑÑÑимой погÑеÑноÑÑи пÑи макÑималÑном Ñоке ÐÐ, ÑаÑÑеÑÐ½Ð°Ñ Ð¿ÑовеÑка ÑÑанÑÑоÑмаÑоÑа Ñока по вÑемени до наÑÑÑениÑ. The object of research is an autotransformer with a capacity of 333 MVA.The following calculations were made: the steady state operation of the system, short-circuit currents in an analytical way and using the RastrWin software package.Calculations of the main and backup protections of the autotransformer are carried out. The settings for current, differential and distance protections of the autotransformer are determined. The sensitivity of the main and backup protections of the protected autotransformer was tested.A check was made to meet the requirements for current transformers in differential protection circuits made on the basis of microprocessor devices manufactured by SIEMENS: the powers of the secondary windings were calculated, the current transformers were checked according to the condition of permissible error at the maximum short-circuit current, and the current transformer was calculated by time to saturation. |
| Databáze: | OpenAIRE |
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