【正文】 式所構(gòu)成，他從電力系統(tǒng)取得電能，通 過其變換、分配、輸送與保護(hù)等功能，然后將電能安全、可靠、經(jīng)濟(jì)的輸送到每一個用電設(shè)備的轉(zhuǎn)設(shè)場所。 保密類別 編 號 20200502140 武漢大學(xué)珞珈學(xué)院 畢 業(yè) 論 文 110KV 變電站電氣一次部分設(shè)計 系 別 電氣工程及自動化 專 業(yè) 電氣工程及自動化 年 級 2020 級電氣 4班 學(xué) 號 20200502140 姓 名 徐睿 指導(dǎo)教師 劉啟勝 武漢大學(xué)珞珈學(xué)院 2020 年 5 月 20 日武漢大學(xué)珞珈學(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)計越來越全面、系統(tǒng)，工廠用電量迅速增長，對電能質(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，因此對供電設(shè)計也有了更高、更完善的要求。設(shè)計是否合理，不僅直接影響基建投資、運行費用和有色金屬的消耗量，也會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)。作為電能傳輸與控制的樞紐，變電站必須改變傳統(tǒng)的設(shè)計和控制模式，才能適應(yīng)現(xiàn)代電力系統(tǒng)、現(xiàn)代化工業(yè)生產(chǎn)和社會生活的發(fā)展趨勢。 110KV 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)荷計算，確定用戶無功功率補償 裝置。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)。 隨著電力技術(shù)高新化、復(fù)雜化的迅速發(fā)展，電力系統(tǒng)在從發(fā)電到供電的所有領(lǐng)域中，通過新技術(shù)的使用，都在不斷的發(fā)生變化。 關(guān)鍵詞 ： 變電站 負(fù)荷 輸電系統(tǒng) 配電 系統(tǒng) 高壓網(wǎng)絡(luò) 補償裝置 武漢大學(xué)珞珈學(xué)院本科畢業(yè)論文 II 110kV Substation primary equipment design Abstract Along with the economic development and the modern industry developments of quick rising, the design of the power supply system bee more and more pletely and system. Because the quickly increase electricity of factories, it also increases seriously to the dependable index of the economic condition, power supply in quantity. Therefore they need the higher and more perfect request to the power supply. Whether Design reasonable, not only affect directly the base investment and circulate the expenses with have the metal depletion in color metal, but also will reflect the dependable in power supply and the safe in many facts. In a word, it is close with the economic performance and the safety of the people. The substation is an importance part of the electric power system, it is consisted of the electric appliances equipments and the Transmission and the Distribution. It obtains the electric power from the electric power system, through its function of transformation and assign, transport and safety. Then transport the power to every place with safe, dependable, and economical. As an important part of power’s transport and control, the transformer substation must change the mode of the traditional design and control, then can adapt to the modern electric power system, the development of modern industry and the of trend of the society life. 武漢大學(xué)珞珈學(xué)院本科畢業(yè)論文 III The region of 110voltage effect many fields and should consider many problems. Analysis change to give or get an electric shock a mission for carrying and customers carries etc. circumstance, choose the address, make good use of customer data proceed then carry calculation, ascertain the correct equipment of the customer. At the same time following the choice of every kind of transformer, then make sure the line method of the transformer substation, then calculate the shortcircuit electric current, choosing to send together with the electric wire method and the style of the wire, then proceeding the calculation of shortcircuit electric current. This first step of design included:(1) ascertain the total project (2) load analysis(3) the calculation of the shortcircuit electric current (4) the design of an electric shock the system design to connect with system and the choice of line project (5) the choice and the settle of the protective facility (6) the contents to defend the thunder and protection of connect the earth. Along with the high and quick development of electric power technique, electric power system then can change from the generate of the electricity to the supply the power. Key words: Substation Load Transmission system Distribution High voltage work Correction equipment. 武漢大學(xué)珞珈學(xué)院本科畢業(yè)論文 目 錄 前 言 ........................................................................ 1 緒 論 ........................................................................ 2 第一章 電氣主接線 主接線的 選擇 ............................................................................................................... 3 110kV電氣主接線 ....................................................................................................... 4 35kV電氣主接線 ........................................................................................................ 5 10kV電氣主接線 ........................................................................................................... 6 站用電接線 ................................................................................................................... 7 第二章 負(fù)荷計算及變壓器選擇 負(fù)荷計算 ...................................................................................................................... 9 負(fù)荷分類及定義 ................................................................................................... 9 負(fù)荷組成 ............................................................................................................. 9 主變臺數(shù)、容量和型式的確定 ...................................................................................... 11 2． 3 變電所主變壓器容量的確定 .......................................................................................12 2． 4 變電站主變壓器型式的選擇 .......................................................................................12 第三章 最大持續(xù)工作電流及短路電流的計算 各回路最大持續(xù)工作電流 .............................................................................................14 短路電流計算點的確定 ................................................................................................14 短路電流計算的目的 ....................................................................................................14 短路電流計算的步驟 ....................................................................................................15 電流計算結(jié)果 ..............................................................................................................16 第四章 主要電氣設(shè)