電子機(jī)電論文編號:JD070    包括設(shè)計圖紙,字?jǐn)?shù):21633,頁數(shù):62

目 錄

摘要............................................................... 1
第一章緒論 ........................................................ 4
第二章設(shè)計的要求 .................................................. 5
2.1  原始數(shù)據(jù)........................................................5
2.2  出線情況........................................................5
2.3  系統(tǒng)情況 .......................................................5
2.4. 環(huán)境條件 ...................................................... 5
第三章電氣主接線設(shè)計 ...............................................6
3.1電氣主接線選擇要注意的問題........................................6
3.1.1 運(yùn)行的可靠.....................................................6
3.1.2 具有一定的靈活性 ..............................................7
3.1.3 操作應(yīng)盡可能簡單、方便.........................................7
3.2  主變壓器選擇 ...................................................8
3.2.1  設(shè)計原則與規(guī)范................................................8
3.2.2  容量、臺數(shù)選擇及校驗......................................... 8
3.2.3  主變型式的選擇 .............................................. 9
3.3  主接線設(shè)計 ....................................................11
3.3.1  設(shè)計原則與規(guī)范...............................................11
3.3.2  110KV的接線形式..............................................13
3.3.3  35KV的接線形式 ..............................................15
3.4  所用電設(shè)計 ....................................................17
3.5  限流問題 ......................................................20
3.6  中性點(diǎn)設(shè)計 ....................................................20
3.6.1  設(shè)計原則 ....................................................20
3.6.2  電容電流計算 ................................................21
3.7  無功補(bǔ)償.......................................................22
3.7.1  無功補(bǔ)償意義.................................................22
3.7.2  無功補(bǔ)償方式 ................................................22
3.7.3  并聯(lián)電容器的選擇 ............................................23
第四章短路電流的計算 ..............................................26
   4.1短路計算的目的................................................26
   4.2 短路電流計算的一般要求.......................................26
   4.3 短路電流計算 ................................................27
   4.4 參數(shù)計算 ....................................................27
 4.5 網(wǎng)絡(luò)化簡及計算.................................................28
  4.5.1  110KV母線短路電流計算......................................28
  4.5.2  35KV母線短路電流計算 ......................................29
  4.5.3  10KV母線短路電流計算.......................................29
第五章電氣設(shè)備選擇 ................................................31
5.1  電氣設(shè)備選擇的主要任務(wù) ........................................31
5.2  選擇導(dǎo)體和電氣的一般原則.......................................31
5.3  選擇導(dǎo)體和電氣的技術(shù)條件.......................................31
5.3.1  長期發(fā)熱選擇導(dǎo)體 ............................................32
5.3.2  按經(jīng)濟(jì)電流密度選擇導(dǎo)體 ......................................32
5.3.2  導(dǎo)體、電氣設(shè)備的選型 ........................................32
5.4  校驗...........................................................34
5.5  具體運(yùn)算 ......................................................35
5.6  電氣設(shè)備的選型 ................................................40
5.6.1  一般原則.....................................................40
5.6.2  設(shè)備選擇.....................................................40
5.7  選擇結(jié)果 ......................................................48
第六章  配電裝置設(shè)計和總平面布置設(shè)計................................51
6.1 配電裝置及電氣總平面設(shè)計的意義 .................................51
6.2 配電裝置的設(shè)計 .................................................51
6.2.1配電裝置設(shè)計應(yīng)滿足的基本原則...................................51
6.2.2各電壓級配電裝置型式的選擇.....................................51
6.3總平面布置設(shè)計...................................................53
6.3.1 設(shè)計任務(wù)......................................................53
6.3.2總平面布置設(shè)計的基本原則 ......................................54
第七章  防雷設(shè)計 ...................................................55
7.1雷害的來源.......................................................55
7.2  直擊雷保護(hù).....................................................55
7.2.1  保護(hù)對象.....................................................55
7.2.2  保護(hù)措施.....................................................55
7.2.3  避雷針保護(hù)應(yīng)注意的問題 ......................................55
7.3  雷電侵入波保護(hù).................................................56
7.3.1配電裝置對侵入雷電波的保護(hù).....................................56
7.3.2  進(jìn)線段保護(hù)...................................................57
7.4  避雷器的選型 ..................................................58
7.4.1  防雷保護(hù)計算 ................................................58
7.4.2  避雷器選擇 ..................................................58
致   謝 ........................................................... 59
參考文獻(xiàn)............................................................60

摘 要

本文根據(jù)任務(wù)書上所給的系統(tǒng)與線路及負(fù)荷參數(shù)，分析擬建變電站的進(jìn)出線方向和負(fù)荷等資料，從可靠性、安全性、經(jīng)濟(jì)性等方面考慮，確定了電氣主接線方式。并通過對負(fù)荷資料的分析，安全，經(jīng)濟(jì)及可靠性方面考慮，確定了110kV，35kV，10kV以及站用電的主接線，然后又通過負(fù)荷計算及供電范圍確定了主變壓器臺數(shù)，容量及型號，同時也確定了站用變壓器的容量及型號，最后，根據(jù)最大持續(xù)工作電流及短路計算的計算結(jié)果，對高壓熔斷器，隔離開關(guān)，母線，絕緣子和穿墻套管，電壓互感器，電流互感器進(jìn)行了選型，然后進(jìn)行配電裝置和平面布置的設(shè)計以及防雷的設(shè)計,從而完成了110kV電氣一次部分的設(shè)計。
關(guān)鍵詞：變電站 變壓器  接線
Abstract
This article according to the system logical circuit which and the load parameter in the project description gives, the analysis plans to construct the transformer substation to enter material and so on going beyond a line direction and load, from aspects and so on reliability, security, efficiency considered, has determined the electrical main wiring way. And through to shoulders the material the analysis, safe, the economy and the reliable aspect considered, had determined 110kV,35kV,10kV as well as the station use electricity the main wiring, then calculated through the load and supplies power the scope to determine the main transformer Taiwan number, the capacity and the model, simultaneously also had determined stood with transformer's capacity and the model, finally, according to most greatly continually the operating current and the short circuit computation's computed result, to the high-pressured fuse, the isolator, the bus bar, the insulator and put on the wall drive pipe, the voltage transformer, the current transformer has carried on the shaping, then carried on the power distribution equipment and the plane layout design as well as the anti-radar design, thus has completed 110kV electricity partial designs.
Key word: Transformer substation transformer wiring