【正文】
110KV變電站一次部分設(shè)計(jì)說(shuō)明書(shū)作者:xxxxx(xxxx機(jī)電系電氣自動(dòng)化專業(yè))摘 要本文首先根據(jù)任務(wù)書(shū)上所給系統(tǒng)與線路及所有負(fù)荷的參數(shù),分析負(fù)荷發(fā)展趨勢(shì)。從負(fù)荷增長(zhǎng)方面闡明了建站的必要性,然后通過(guò)對(duì)擬建變電站的概括以及出線方向來(lái)考慮,并通過(guò)對(duì)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(guò)負(fù)荷計(jì)算及供電范圍確定了主變壓器臺(tái)數(shù),容量及型號(hào),同時(shí)也確定了站用變壓器的容量及型號(hào),最后,根據(jù)最大持續(xù)工作電流及短路計(jì)算的計(jì)算結(jié)果,對(duì)高壓熔斷器,隔離開(kāi)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,從而完成了110kV電氣一次部分的設(shè)計(jì)。關(guān)鍵字:變電站,變壓器,接線ABSTRACTThis paper first book according to the mission to system and routes and all the parameters of the load, load analysis development trend. From the load increasing illustrates the necessity of the site, and then through the proposed generalization of substation and qualify the direction to consider, and through the analysis of the data of load, safety, economy and reliability into consideration, determine the 110 kV, 35 kV, 10 kV power station and the Lord wiring, and then through the load calculation and power supply scope the main transformer capacity and model Numbers, and, at the same time also identified the stand with the capacity of transformer and model, finally, according to the maximum continuous working current and short circuit calculation results of calculation of high pressure, fuses, isolating switch, bus, insulator and wear casing wall, voltage transformer, current transformer, the selection and pleted the 110 kV electrical a part of the design.KEY WORDS: substation,transformer,wiring目錄前言……………………………………………………………………………………………(3)第一章電氣主接線……………………………………………………………………………(4)1. 1 110kv電氣主接線………………………………………………………………………(7)1. 2 35kv電氣主接線…………………………………………………………………………(6)1. 3 10kv電氣主接線……………………………………………………………………… (7)1. 4 站用變接線 ……………………………………………………………………………(8)第二章 負(fù)荷計(jì)算及變壓器選擇…………………………………………………………(10)2.1負(fù)荷計(jì)算…………………………………………………………………………………(10)2.2主變臺(tái)數(shù)、容量和型式的確定…………………………………………………………(10)2.3站用變臺(tái)數(shù)、容量和型式的確定………………………………………………………(12)第三章最大持續(xù)工作電流及短路電流的計(jì)算…………………………………………… (12)3.1各回路最大持續(xù)工作電流…………………………………………………………… (12)3.2短路電流計(jì)算點(diǎn)的確定和短路電流計(jì)算結(jié)果……………………………………… (13)第四章主要電氣設(shè)備選擇………………………………………………………………… (14)4.1高壓斷路器的選擇…………………………………………………………………… (15)4.2隔離開(kāi)關(guān)的選擇……………………………………………………………………… (16)4.3母線的選擇…………………………………………………………………………… (16)4.4絕緣子和穿墻套管的選擇…………………………………………………………… (17)4.5電流互感器的選擇…………………………………………………………………… (17)4.6電壓互感器的選擇………………………………………………………………………(18)4. 7 各主要電氣設(shè)備選擇結(jié)果一覽表……………………………………………………(19)附錄I: 設(shè)計(jì)計(jì)算書(shū)……………………………………………………………………… (20)附錄II:電氣主接線圖…………………………………………………………………… (27)附錄Ⅲ: 10kv配電裝置配電圖……………………………………………………………(28)致謝………………………………………………………………………………………… (29)參考文獻(xiàn)…………………………………………………………………………………… (30)前 言 待設(shè)計(jì)變電所地位及作用按照先行的原則,依據(jù)遠(yuǎn)期負(fù)荷發(fā)展,決定在本區(qū)興建1中型110kV變電所。該變電所建成后,主要對(duì)本區(qū)用戶供電為主,尤其對(duì)本地區(qū)大用戶進(jìn)行供電。改善提高供電水平。同時(shí)和其他地區(qū)變電所聯(lián)成環(huán)網(wǎng),提高了本地供電質(zhì)量和可靠性。 北待設(shè)計(jì)變電站 ~~