外文翻譯--基于reb670的快速差動(dòng)母線保護(hù)中文-資料下載頁(yè)
2025-05-12 07:27本頁(yè)面
【導(dǎo)讀】摘要:本文討論了基于REB670的差動(dòng)母線保護(hù)運(yùn)行原則。它表明，在考慮限制延。電流互感器的飽和時(shí)間取決于最大的準(zhǔn)確率、初始故障的電流相位，以及其。它發(fā)現(xiàn)當(dāng)最大的準(zhǔn)確率達(dá)到相對(duì)外部故障電流至少一半時(shí)就可產(chǎn)生可靠。滿足保護(hù)系統(tǒng)的電流互感器優(yōu)化要求。合，來(lái)保護(hù)電流互感器，二次回路，以及故障電路[1]。區(qū)中的連接的總數(shù)；其中M是正向電流計(jì)數(shù)的連接數(shù);使用滑動(dòng)觀察窗口計(jì)算的電流均方根值用于確定約束的特點(diǎn)。在此設(shè)備中，T0是等于工頻作為調(diào)整的離散周期TD。根據(jù)測(cè)試數(shù)據(jù)，區(qū)域中的單向故障饋送制度。感元件的應(yīng)用，讓總線測(cè)試方案中的選擇性行動(dòng)元件的靈敏度提高成為可能。引起相當(dāng)高的不平衡電流。外部故障電流制度是基于對(duì)積分值的電流Id，Iin，Iout和瞬時(shí)電流Id，Iin，差動(dòng)電流的延遲時(shí)間是用作信號(hào)參數(shù)。這種情況下可以通過(guò)為電流互感器Kmar選擇最高精確率來(lái)實(shí)現(xiàn)。Bs是有條件的電流互感器磁路飽和感應(yīng)，Br是殘留的感應(yīng)，這個(gè)公式好在誤差不大于5％為B*≤。
【正文】 n REB670 (User’s Differential Protection for REB670 Bus Bar),OOO “ABB Avtomatizatsiya”, 2020. , . and Kazakova, ., The Way to Calculate the Imbalance Currents of Transformers Digital Differential Protection under Small Withstand Currents, Izv. Vyssh. Uchebn. Zaved. Elektromekhan., 2020,no. 4. , ., Tsifrovaya obrabotka signalov (Signal Digital Processing), St. Petersburg: Piter, 2020. , . and Sinel’nikov, ., Zashchita shin elektrostantsii i podstantsii (Bus Bar Protection for the Electric Stations and Substations), Moscow: Energoatomizdat, 1983. , ., Zasypkin, ., Kuzhekov, ., et al., Elektricheskie tsepi s ferromagnitnymi elementami vreleinoi zashchite (Electrical Circuits with Ferromagic Elements in Relay Protection), Moscow: Energoatomizdat, 1986. 7. GOST (State Standard) no. 7746–2020: Current Transformers. General Technical Specifications, 2020. 8. Afanas’ev, ., Adon’ev, ., Kibel’, ., et al., Transformatory toka (Current Transformers), Leningrad: Energoatomizdat, 1989. , . and Lint, ., Measuring Arm of Buss Bars Differential Protection. Design Principals,Elektrichestvo, 1991, no. 1. , ., Starshinov, ., Gusev, ., and Piratorov, ., Perekhodnye protsessy v elektroenergeticheskikh sistemakh (Transient Processes in the ElectricPower Systems), Moscow: Energoatomizdat, 2020. ’ev, ., Kryuchkov, ., Nayashkova, ., et al.,Elektricheskaya chast’ stantsii i podstantsii (Electrical Part of the Electric Power Stations and Substations), Moscow: Energoatomizdat, 1990. , ., Coordination of Requirements for Current Transformers and Fast Acting Relays of Buss Bar Differential Protection, Trudy AEN Chuvash. Resp., 2020, no. 1.
畢業(yè)設(shè)計(jì)相關(guān)推薦
鄂ICP備17016276號(hào)-1