kv上秦變電站電氣部分附站用電初步設(shè)計(jì)畢業(yè)設(shè)計(jì)

1、摘要隨著國(guó)民經(jīng)濟(jì)的迅速發(fā)展我國(guó)電力需求迅速增長(zhǎng)使得電網(wǎng)規(guī)模不斷擴(kuò)大、結(jié)構(gòu)越來越復(fù)雜而變電站對(duì)于電力的生產(chǎn)和分配起到了舉足輕重的作用。變電站是電網(wǎng)建設(shè)和電網(wǎng)改造中非常重要技術(shù)環(huán)節(jié)。近年來變電站技術(shù)處于高速發(fā)展的過程中隨著國(guó)內(nèi)外氣體緣金屬封閉開關(guān)設(shè)備GIS系統(tǒng)和綜合自動(dòng)化技術(shù)的應(yīng)用變電站向著占地面積小、靈活性高、易于檢修的趨勢(shì)發(fā)展。本次設(shè)計(jì)為110kV變電站電氣部分初步設(shè)計(jì)并繪制電氣主接線圖及其他圖紙。該變電站設(shè)有兩臺(tái)主變壓器站內(nèi)主接線分為

2、110kV、10kV兩個(gè)電壓等級(jí)。本次設(shè)計(jì)中進(jìn)行了電氣主接線的設(shè)計(jì)、短路電流計(jì)算、變壓器的選擇、主要電氣設(shè)備選擇包括斷路器、隔離開關(guān)、電流互感器、電壓互感器、母線等、各電壓等級(jí)配電裝置設(shè)計(jì)。關(guān)鍵詞關(guān)鍵詞：變電站電氣主接線短路電流目錄摘要....................................................................................................

3、.....................................IAbstract......................................................................................................................................II目錄....................................

4、...............................................................................................III1前言.......................................................................................................................

5、..................11.1選題的目的和意義.......................................................................................................11.2國(guó)內(nèi)外研究綜述............................................................................

6、...............................11.3原始資料...............................................................................................................................21.3.1畢業(yè)設(shè)計(jì)（論文）的技術(shù)背景和設(shè)計(jì)依據(jù)..............................

7、...............................21.3.2畢業(yè)設(shè)計(jì)（論文）的主要內(nèi)容、功能及技術(shù)指標(biāo)..........................................32電氣主接線設(shè)計(jì)...............................................................................................................

8、.......52.1概述..............................................................................................................................52.2主接線設(shè)計(jì)方案......................................................................

9、.............................................72.2.1110kv側(cè)主接線..........................................................................................................72.2.235kv側(cè)主接線........................................

10、.................................................................92.2.310kv側(cè)主接線.......................................................................................................122.3無功補(bǔ)償方案...........................

11、...................................................................................132.3.1補(bǔ)償作用...........................................................................................................132.3.2無功補(bǔ)償容量及電容器接線

12、方式....................................................................133變壓器的選擇.......................................................................................................................153.1主變壓器的選擇..........

13、................................................................................................153.2站用變電器的選擇......................................................................................................164短路電流..

14、.............................................................................................................................184.1短路電流介紹....................................................................................

15、..........................184.1.1短路電流計(jì)算的目的.....................................................................................184.1.2短路電流計(jì)算的一般規(guī)定...........................................................................

16、....184.1.3短路計(jì)算基本假設(shè)............................................................................................184.2短路電流計(jì)算步驟................................................................................................

17、......194.3短路電流計(jì)算及計(jì)算結(jié)果..........................................................................................205導(dǎo)體和電氣設(shè)備的選擇...............................................................................................

18、......265.1電氣設(shè)備選擇原則......................................................................................................265.2斷路器和隔離開關(guān)的選擇...................................................................................

19、.......265.2.1110kv側(cè)斷路器和隔離開關(guān)選擇................................................................265.2.235kv側(cè)側(cè)斷路器和隔離開關(guān)選擇..............................................................285.2.310kv側(cè)斷路器的選擇.......................

20、.............................................................305.2.4主變中性點(diǎn)隔離開關(guān)的選擇.........................................................................315.3互感器的選擇........................................................

21、.....................................................325.3.1電流互感器的選擇...........................................................................................325.3.2電壓互感器的選擇..............................................