【正文】 3100MW 火力發(fā)電廠電氣設(shè)計13100MW火力發(fā)電廠電氣部分設(shè)計畢業(yè)論文目錄摘要 .................................................................................................................................................1ABSTRACT....................................................................................................................................2第一部分 設(shè)計說明書 .....................................................8第一章 概述 .................................................................................................................................8 本畢業(yè)設(shè)計的目的和要求 ......................................................................................8 本畢業(yè)設(shè)計的內(nèi)容 ..................................................................................................8 本次設(shè)計主要內(nèi)容 .....................................................................................8 本次設(shè)計最終的設(shè)計成品 .........................................................................9 本設(shè)計引用的規(guī)程和規(guī)范 ......................................................................................9第二章 電氣主接線設(shè)計 ...........................................................................................................10 對水電廠原始資料分析 ........................................................................................10 原始資料 ...................................................................................................10 原始資料分析 ...........................................................................................11 電氣主接線設(shè)計依據(jù) ............................................................................................11 主接線設(shè)計的一般步驟 ........................................................................................11 技術(shù)經(jīng)濟比較 ........................................................................................................12 發(fā)電機電壓（主）接線方案 ...................................................................12 主接線方案擬定 .......................................................................................14 水輪發(fā)電機的選擇 ................................................................................................18 主變的選擇 ............................................................................................................18 相數(shù)的選擇 ..................................................................................................18 繞組數(shù)量和連接方式的選擇 ......................................................................18 普通型與自偶型選擇 ..................................................................................18 各級電壓中性點運行方式選擇 ............................................................................19第三章 短路電流計算 ...............................................................................................................20 短路電流計算的基本假設(shè) ..................................................................................20 電路元件的參數(shù)計算 ..........................................................................................20 網(wǎng)絡(luò)變換與簡化方法 ..........................................................................................20 短路電流實用計算方法 ......................................................................................20 3100MW 火力發(fā)電廠電氣設(shè)計2第四章 廠用電設(shè)計 ...................................................................................................................22 廠用電負(fù)荷統(tǒng)計及廠用變壓器的選擇 ..............................................................22 一般水電站的主要廠用負(fù)荷有以下兩大類 ...........................................22 該水電站的主要廠用負(fù)荷統(tǒng)計 ...............................................................22 廠用變壓器選擇 ..................................................................................................26 廠用電電壓等級 ..................................................................................................26 廠用電源及其引接 ..............................................................................................26 工作電源 .....................................................................................................26 備用電源和啟動電源 ...............................................................................26 事故保安電源 ...........................................................................................27 廠用電接線方式 ....................................................................................................27 油水氣系統(tǒng) ............................................................................................................28 油系統(tǒng) .........................................................................................................28 水系統(tǒng) .........................................................................................................28 氣系統(tǒng) .........................................................................................................29第五章 電氣設(shè)備選擇及校驗 ...................................................................................................32 電氣設(shè)備選擇的一般規(guī)定 ..................................................................................32 按正常工作條件選擇 ...............................................................................32 按短路條件校驗 .......................................................................................33 斷路器和隔離開關(guān)的選擇和校驗 ......................................................................34 限流電抗器的選擇和校驗 ..................................................................................35 導(dǎo)體、電纜的選擇和校驗 ..................................................................................36 絕緣子、穿墻套管的選擇和校驗 ......................................................................36 電流、電壓互感器的選擇和校驗 ......................................................................37 避雷器的選擇和校驗 ..........................................................................................37 避雷器的設(shè)置 ...........................................................................................37 避雷器的選擇 .........................