【正文】
2021屆 本科生畢業(yè)設(shè)計(jì) 分類號(hào): TM645 題 目 : 220kv 變電站電氣主接線系統(tǒng)設(shè)計(jì) 作 者 姓 名 : XXXXXX 學(xué) 號(hào) : XXXXXXXXXXXXX 學(xué) 院 : 機(jī)械與電子工程學(xué)院 專 業(yè): 電氣工程及其自動(dòng)化 指導(dǎo)教師姓名 : 穆海 芳 指導(dǎo)教師職稱 : 助教(碩士) 2021年 5 月 1 日 摘 要 展望未來,我國能否在 21 世紀(jì)中后期基本上實(shí)現(xiàn)現(xiàn)代化,很大程度上取決于能源,而電力能源又占未來能源的主導(dǎo)地位。電力工業(yè)是國民經(jīng)濟(jì)發(fā)展的基礎(chǔ),作為支柱產(chǎn)業(yè)的它與國家的興衰和人民的安康有著緊密的聯(lián)系,隨著經(jīng)濟(jì)快速發(fā)展和現(xiàn)在化工業(yè)建設(shè)的迅速崛起,工廠用電量持續(xù)增加,在伴隨不可再生能源日益減少的情況下,對(duì)電能的質(zhì)量、電能技術(shù)要求和供電的可靠性等 指標(biāo)也日益提高,因此對(duì)供電系統(tǒng)也有了更高、更完善的要求。 本設(shè)計(jì)以 220KV 變電站設(shè)計(jì)為例,論述了電力系統(tǒng)工程中變電站部分電氣設(shè)備的(一次系統(tǒng))的全過程,通過對(duì)變電站的主接線設(shè)計(jì),站用電接線設(shè)計(jì),短路電流計(jì)算,電氣設(shè)備動(dòng)、熱穩(wěn)定校驗(yàn),主要電器設(shè)備的型號(hào)和參數(shù)的確定,運(yùn)動(dòng)方式的分析,此外還進(jìn)行防雷保護(hù)的設(shè)計(jì)和計(jì)算,較為詳細(xì)的完成了電力系統(tǒng)中變電站設(shè)計(jì)。 關(guān)鍵詞: 變電站;過電壓保護(hù)裝置; 無功補(bǔ)償; 短路電流; 電氣設(shè)備 ABSTRACT Looking to the future, our country whether in late twentyfirst Century basically realize modernization, a very large extent depends on energy, and the electric energy is the dominant energy future. Power industry is the foundation of national economy, as a pillar industry of it and the rise and decline of the state and the people of Ankang are closely linked, with the fast development of economy and the rapid rise of industry construction now, the factory electricity consumption continued to increase, with nonrenewable energy is reduced circumstances, to the quality of electric energy, electrical energy technique requirement and power supply reliability index is also increasing, so the power supply system is also higher, better requirements. The design of 220KV substation design, discussed power system substation parts electrical equipment ( a system ) throughout the process, through to the transformer substation main wiring design, stations wiring design, shortcircuit current calculation, fixed electrical equipment, thermal stability check, the main electrical equipment models and the parameters, movement analysis, in addition to the lightning protection design and calculation, a detailed plete the power system in the substation design. Key words: substation。 vervoltage protection。 reactive power pensation。 short circuit current。 electrical equipment 目 錄 緒 論 ...................................................................................................................... 1 1 電氣主接線的設(shè)計(jì) ........................................................................................... 1 主接線的選擇 ......................................................................................... 1 主變壓器選擇結(jié)果 ................................................................................. 2 所用電設(shè)計(jì) ............................................................................................. 3 所用 電選擇 .................................................................................. 3 所用電接線圖 .............................................................................. 3 2 變電站電氣部分短路計(jì)算 ............................................................................... 4 變壓器的各繞組電抗標(biāo)幺值計(jì)算 ......................................................... 4 10KV側(cè)短路計(jì)算 ................................................................................... 5 220KV側(cè)短路的計(jì)算 ............................................................................. 6 3 導(dǎo)體和電氣設(shè)備的設(shè)計(jì) ................................................................................... 7 斷路器和隔離開關(guān) .............