freepeople性欧美熟妇, 色戒完整版无删减158分钟hd, 无码精品国产vα在线观看DVD, 丰满少妇伦精品无码专区在线观看,艾栗栗与纹身男宾馆3p50分钟,国产AV片在线观看,黑人与美女高潮,18岁女RAPPERDISSSUBS,国产手机在机看影片

正文內(nèi)容

220kv變電站畢業(yè)設(shè)計(jì)-文庫(kù)吧資料

2025-03-11 12:09本頁(yè)面
  

【正文】 時(shí)率取 ,線路損耗取 6%。 用戶負(fù)荷統(tǒng)計(jì)資料 110kV 用戶負(fù)荷統(tǒng)計(jì)資料如表 11。 ( 4) 該變電所的所址,地勢(shì)平坦,交通方便。 ( 2) 確定本變電所的電壓等級(jí)為 220kV/110kV/10kV, 220kV是本變電所的電源電壓, 110kV 和 10kV 是二次電壓。發(fā)達(dá)國(guó)家通過改善優(yōu)化變電站結(jié)構(gòu),降低變電站的功率損耗,盡可能地提高變電站的可靠性,盡可能地使變電站的靈活性提高,盡可能地提高經(jīng)濟(jì)性。為了滿足國(guó)內(nèi)的需求,減少在網(wǎng)路中的損耗,這些發(fā)達(dá)國(guó)家已經(jīng)形成了完善的變電設(shè)計(jì)理論。河南理工大學(xué)萬(wàn)方科技學(xué)院本科畢業(yè)論文 2 結(jié)合我國(guó)電力現(xiàn)狀,為國(guó)民經(jīng)濟(jì)各部門和人民生活供給充足、可靠、優(yōu)質(zhì)、廉價(jià)的電能 。 我國(guó)電力工 業(yè)的技術(shù)水平和管理水平正在逐步提高,對(duì)變電所的設(shè)計(jì)提出了更高的要求,更需要我們提高知識(shí)理解應(yīng)用水平,認(rèn)真對(duì)待。同時(shí)對(duì)能源、發(fā)電、變電和輸電的電氣部分有個(gè)詳細(xì)的概念,能熟練的運(yùn)用有些知識(shí),如短路計(jì)算,主接線的設(shè)計(jì)、導(dǎo)體電氣設(shè)備的選擇等。電氣主接線是 變電所的主要部分,電氣主接線的方式直接影響運(yùn)行的可靠性、靈活性,它的擬定直接關(guān)系著電氣設(shè)備的選擇、配電裝置的布置護(hù),是變電所電氣部分投資大小的決定性因素。設(shè)計(jì)是否合理,不僅直接影響基建投資、運(yùn)行費(fèi)用和有色金屬的消耗量,也會(huì)反映在供電的可靠性和安全生產(chǎn)方面,它和企業(yè)的經(jīng)濟(jì)效益、設(shè)備人身安全密切相關(guān)。 The main cables。 relay and transformer configuration。 shortcircuit current calculation。 關(guān)鍵詞: 負(fù)荷計(jì)算 ; 主接線 ; 短路電流 計(jì)算 河南理工大學(xué)萬(wàn)方科技學(xué)院本科畢業(yè)論文 II Abstract With the economic development and modern industrial building of the rapid rise of the design of the power supply system more and more prehensive, systematic, and rapid growth of electricity consumption in factories, on the power quality, technical and economic conditions, indicators of the reliability of electricity supply improves, so design of power supply has been higher and more prehensive requirements. The design is reasonable, not only directly affects the investment in infrastructure, operation costs and the consumption of nonferrous metals will be reflected in the electricity supply reliability and security of production, it is the economic efficiency of enterprises, is closely related to personal safety equipment. Substation power system is an important ponent of the power,and plays an important role of acceptance, distribution, contacts , the stability of the system. The main electrical substation wiring is a major part of Substation power system ,the main electrical wiring running directly impacts the reliability, flexibility, and its formulation directly related to the choice of the electrical equipment ,retaining the arrangement of power distribution equipment, The main electrical substation wiring is part of the decisive factor in the size of electrical substation investment. 220kV substation belongs to highpressure work ,the region more involved, consider the problems and analysis of substation tasks and user load, etc., select the site, use user data loading calculation and determining the user reactive power pensation device. At the same time, choicing of a variety of transformers, substations to determining the connection mode, and then to shortcircuit current calculation, select and wire。選擇變電站高低壓電氣設(shè)備,為變電站平面及剖面圖提供依據(jù)。 220kV變電站屬于高壓網(wǎng)絡(luò),該地區(qū)變電所所涉及方面多,考慮問題多,分析變電所擔(dān)負(fù)的任務(wù)及用戶負(fù)荷等情況,選擇所址,利用用戶數(shù)據(jù)進(jìn)行負(fù)荷計(jì)算,確定用戶無(wú)功功率補(bǔ)償裝置。 變電所是電力系統(tǒng)的重要組成部分,起著電能的接受、分配、聯(lián)絡(luò)、穩(wěn)定系統(tǒng)的重要作用。河南理工大學(xué)萬(wàn)方科技學(xué)院本科畢業(yè)論文 I 摘 要 隨著經(jīng)濟(jì)的發(fā)展和現(xiàn)代工業(yè)建設(shè)的迅速崛起,供電系統(tǒng)的設(shè)計(jì)越來(lái)越全面、系統(tǒng),工廠用電量迅速增長(zhǎng),對(duì)電能質(zhì)量、技術(shù)經(jīng)濟(jì)狀況、供電的可靠性指標(biāo)也日益提高,因此對(duì)供電設(shè)計(jì)也有了更高、更完善的要求。設(shè)計(jì)是否合理,不僅直接影響基建投資、運(yùn)行費(fèi)用和有色金屬的消耗量,也會(huì)反映在供電的可靠性和安全生產(chǎn)方面,它和企業(yè)的經(jīng)濟(jì)效益、設(shè)備人身安全密切相關(guān)。電氣主接線是變電所的主要部分,電氣主接線的方式直接影響運(yùn)行的可靠性、靈活性,它的擬定直接關(guān) 系著電氣設(shè)備的選擇、配電裝置的布置護(hù),是變電所電氣部分投資大小的決定性因素。同時(shí)進(jìn)行變壓器的選擇,從而確定變電站的接線方式,再進(jìn)行短路電流計(jì)算,選擇送配電網(wǎng)絡(luò)及導(dǎo)線,進(jìn)行短路電流計(jì)算。 本次 220kV 變電所電氣部分設(shè)計(jì)是根據(jù)河南理工大學(xué)電氣學(xué)院 本科畢業(yè)設(shè)計(jì)工作手冊(cè)進(jìn)行的,主要包括主變壓 器、主接線形式的確定;短路電流計(jì)算;電氣設(shè)備的選擇;繼電保護(hù)及互感器的配置;防雷保護(hù)等幾個(gè)部分。 Networks to carry out shortcircuit current calculation. Select high and low voltage electrical substation equipment for the substation plane and provide the basis profiles. The 220kV substation electrical design is based on school of electrical engineering and automation henan polytechnic university graduate electrical design manual, including the main transformer, the main form of identification terminal。 choice of electrical equipment。 several parts, such as lightning protection. Key words: Load。 Short— circuit current calculation 河南理工大學(xué)萬(wàn)方科技學(xué)院本科畢業(yè)論文 i 目 錄 1 緒論 ............................................................................................................... 1 設(shè)計(jì)目的及意義 ...................................................................................... 1 國(guó)內(nèi)外相關(guān)領(lǐng)域的研究進(jìn)展 ................................................................. 1 變電所基本資料 ..................................................................................... 2 用戶負(fù)荷統(tǒng)計(jì)資料 ................................................................................. 2 變電所與電力系統(tǒng)的連接 ..................................................................... 3 設(shè)計(jì)任務(wù) ................................................................................................. 3 2 變壓器和主接 線 ........................................................................................... 4 主變壓器的選擇 ..................................................................................... 4 主變?nèi)萘康倪x擇 ............................................................................ 4 選用變壓器的原則 ........................................................................ 5 過負(fù)荷能力校驗(yàn) ............................................................................ 5 主接線選擇 ............................................................................................. 7 電氣主接線的設(shè)計(jì)原則 ................................................................ 7 220kV配電裝置主接線選擇 ........................................................ 7 110kV 配電裝置主接線選擇 ........................................................ 8 10kV配電裝置主接線選擇 .......................................................... 8 變電所電氣主接線圖 .................................................................... 9 3 短路電流計(jì)算 ............................................................................................. 10 短路電路計(jì)算的目的和說明 ............................................................... 10 短路電流計(jì)算 .............................................................................. 10 有關(guān)本變電所短路電流計(jì)算的說明 .......................................... 10 系統(tǒng)的等值電抗圖和短路點(diǎn)的選擇 ....................................................1
點(diǎn)擊復(fù)制文檔內(nèi)容
高考資料相關(guān)推薦
文庫(kù)吧 www.dybbs8.com
備案圖鄂ICP備17016276號(hào)-1