【正文】
擇可知,本設(shè)計(jì)110KV出線3回,考慮到選用主變數(shù)量為2臺,110KV饋線(進(jìn)出線)最終為5回,考慮選用110KV母線接線形式為雙母線分段接線。 對電氣主接線的基本要求包括可靠性、靈活性和經(jīng)濟(jì)性三個方面。關(guān)鍵字:主接線、短路計(jì)算、設(shè)備選擇、配電裝置、設(shè)計(jì)說明書、主接線圖、廠用電AbstractThis article is 4 x 15 mw hydropower plant electrical part design at a time. Through detailed analysis of original data, according to the requirements of the design plan descriptions of the economic and technical parison, the main electrical wiring scheme design of auxiliary power, short circuit current calculation and selection of electrical equipment and calibration, power distribution equipment design. Compiled the design specification, draw the main wiring diagram, auxiliary power wiring diagram. The keyword :The main connection, short circuit calculation, equipment selection, power distribution equipment, design specifications, main wiring diagram, auxiliary power 目錄1綜合課程設(shè)計(jì)任務(wù)…………………………………………………………..….2………………………………………………………………….................2……………………………………………………………………….2……………………………………………………………………....2……………………………………………………………………....2 注……………………………………………………………………….2發(fā)電廠電氣主接線設(shè)計(jì)……………………………………………………….3……………………………………………………………3…………………………………………………5 短路電流計(jì)算………………………………………………………………..11 導(dǎo)體,電器設(shè)備選擇及校驗(yàn)………………………………………………..15……………………………………………………………15……………………………………………………………15……………………………………………...17 配電裝置設(shè)計(jì)………………………………………………………………..20參考文獻(xiàn)…………………………………………………………………………..21附錄………………………………………………………………………………..22綜合課程設(shè)計(jì)任務(wù)水力發(fā)電廠電氣一次系統(tǒng)設(shè)計(jì)(1)水電站位于某河流上游,附近有城鎮(zhèn)5座,各城鎮(zhèn)發(fā)展遠(yuǎn)景如下:城鎮(zhèn)名稱工業(yè)發(fā)展遠(yuǎn)景負(fù)荷增長A農(nóng)業(yè)用電、地方小型工業(yè)10MWB有色金屬、煤、鋼鐵企業(yè)120MWC化工、紡織、水泥55MWD鋼鐵、機(jī)械制造、化肥、農(nóng)機(jī)廠115MWE食品工業(yè)、農(nóng)業(yè)用電、輕工業(yè)29MW(2)℃,多年最低氣溫4℃;℃,℃;水電站裝機(jī)4x15MW,最大利用小時數(shù)5000小時,110kV出現(xiàn)3回,其中一回線供20MW的I類負(fù)荷,水電站附近負(fù)荷3MW(不包括自用電和樞紐用電),全系統(tǒng)最大負(fù)荷340MW,最小負(fù)荷225MW。通過對原始資料的分析,現(xiàn)將各電壓等級可能的較佳方案列出,進(jìn)而優(yōu)化組合,形成最佳可比方案。二、主接線方案的經(jīng)濟(jì)初步比較 主接線方案的投資初步比較方案投資比較表項(xiàng)目方案一方案二10kv接線15110kv接線主變108108本體投資綜合投資