110kv變電站主接線方案

1、蘭州交通大學(xué)畢業(yè)設(shè)計(jì)（論文）I摘要變電站作為電力系統(tǒng)中地重要組成部分直接影響整個(gè)電力系統(tǒng)地安全與經(jīng)濟(jì)運(yùn)行.根據(jù)設(shè)計(jì)任務(wù)書地要求本次設(shè)計(jì)為110kV變電站一次主接線地設(shè)計(jì)并繪制電氣主接線圖和變電站平面布置圖.該變電站設(shè)有兩臺(tái)主變壓器站內(nèi)主接線分為110kV、35kV和10kV三個(gè)電壓等級(jí).110kV電壓等級(jí)采用內(nèi)橋接線35kV和10kV電壓等級(jí)都采用單母線分段接線.首先根據(jù)主接線地經(jīng)濟(jì)可靠、運(yùn)行靈活地要求選擇了兩種待選主接線方案進(jìn)行了技術(shù)

2、經(jīng)濟(jì)比較淘汰較差地方案確定了變電站電氣主接線方案.同時(shí)通過對(duì)原始資料地分析來選擇變壓器和無功補(bǔ)償裝置.其次進(jìn)行短路電流計(jì)算從三相短路計(jì)算中得到當(dāng)短路發(fā)生在各電壓等級(jí)地母線上時(shí)其短路穩(wěn)態(tài)電流和沖擊電流地值.再根據(jù)計(jì)算結(jié)果及各電壓等級(jí)地額定電壓和最大持續(xù)工作電流進(jìn)行主要電氣設(shè)備選擇及校驗(yàn).設(shè)計(jì)地內(nèi)容符合國(guó)家有關(guān)經(jīng)濟(jì)技術(shù)政策所選設(shè)備大部分為國(guó)家推薦地產(chǎn)品技術(shù)先進(jìn)、運(yùn)行可靠、經(jīng)濟(jì)合理.關(guān)鍵詞：電氣主接線；關(guān)鍵詞：電氣主接線；變壓器變壓器；設(shè)備選

3、型設(shè)備選型蘭州交通大學(xué)畢業(yè)設(shè)計(jì)（論文）III目錄摘要.....................................................................................................................................IAbstract....................................................

4、..................................................................................II1緒論.....................................................................................................................................

5、....11.1工程背景......................................................................................................................11.2設(shè)計(jì)范圍..................................................................................

6、....................................11.3設(shè)計(jì)依據(jù)......................................................................................................................11.4設(shè)計(jì)目標(biāo)..................................................

7、....................................................................11.5設(shè)計(jì)任務(wù)......................................................................................................................12電氣主接線設(shè)計(jì).................

8、....................................................................................................22.1主接線地設(shè)計(jì)原則......................................................................................................22.1.1

9、主接線地設(shè)計(jì)依據(jù)...........................................................................................22.1.2主接線設(shè)計(jì)地基本要求...................................................................................22.2主接線地設(shè)計(jì)............

10、..................................................................................................22.2.1設(shè)計(jì)步驟...........................................................................................................22.2.

11、2初步方案設(shè)計(jì)...................................................................................................22.2.3最優(yōu)方案確定...................................................................................................23負(fù)

12、荷計(jì)算.................................................................................................................................33.1負(fù)荷計(jì)算地公式.............................................................................

13、.............................33.1.1低壓側(cè)負(fù)荷計(jì)算地公式...................................................................................33.1.2高壓側(cè)負(fù)荷計(jì)算地公式............................................................................

14、.......43.210kV和35kV地負(fù)荷計(jì)算..........................................................................................43.2.110kV線路負(fù)荷計(jì)算.........................................................................................

15、.43.2.235kV線路負(fù)荷計(jì)算..........................................................................................53.3變壓器地選擇.......................................................................................................

16、.......63.3.1確定變壓器容量地公式...................................................................................63.3.2主變壓器臺(tái)數(shù)地選擇.......................................................................................73.3.3主變壓器容量

17、地確定.......................................................................................73.3.4主變壓器型號(hào)地確定.......................................................................................73.4站用變壓器地選擇................

18、......................................................................................83.4.1站用變壓器地選擇地原則...............................................................................83.4.2站用變壓器型號(hào)地選擇......................