供配電工程課程設(shè)計(jì)任務(wù)書/r/n1．題目/r/n萬馬商業(yè)樓10kV配變電所電氣設(shè)計(jì)/r/n2/r/n．原始資料/r/n2.1課題原始資料/r/n各課題的工程概況及負(fù)荷詳見工程圖紙資料〔另附〕。/r/n2./r/n2/r/n/r/n供電條件/r/n〔1〕供電公司110/10kV變電所位于工程附近2.5km處，10kV母線短路電流為20kA，根據(jù)需要可提供應(yīng)用戶1路或2路10kV電纜專線供電。/r/n〔2〕采用高供高計(jì)，要求月平均功率因數(shù)不少于/r/n0.9/r/n5。不同電價(jià)負(fù)荷，計(jì)量分開。如學(xué)校用電統(tǒng)一執(zhí)行居民電價(jià)，公共建筑執(zhí)行商業(yè)照明電價(jià)、非工業(yè)動(dòng)力電價(jià)，工業(yè)企業(yè)生產(chǎn)用電統(tǒng)一執(zhí)行大工業(yè)電價(jià)、職工生活用電執(zhí)行居民電價(jià)。居住區(qū)采用高供低計(jì)〔住戶每單元集中設(shè)置計(jì)量表箱、小區(qū)公建在配電室低壓出線柜設(shè)置計(jì)量表〕。/r/n〔3〕供電部門要求用戶變電所高壓計(jì)量柜在進(jìn)線主開關(guān)柜之前，且第一柜為隔離柜。/r/n2./r/n3/r/n/r/n其他資料/r/n當(dāng)?shù)刈顭嵩碌娜兆罡邭鉁仄骄禐?5/r/n℃/r/n，年最熱月地下/r/n0.8m/r/n處最高溫度平均值為25/r/n℃/r/n。當(dāng)?shù)啬昀妆┤諗?shù)為35天。當(dāng)?shù)氐刭|(zhì)平坦，海拔高度為100/r/nm/r/n，土壤為普通粘土。/r/n3．具體任務(wù)及技術(shù)要求/r/n本次課程設(shè)計(jì)共1.5周時(shí)間，具體任務(wù)與日程安排如下：/r/n第1周周一：熟悉資料及設(shè)計(jì)任務(wù)，負(fù)荷計(jì)算與無功補(bǔ)償、變壓器選擇。/r/n周二：供配電系統(tǒng)一次接線設(shè)計(jì)，設(shè)計(jì)繪制變電所高壓側(cè)主接線圖。/r/n周三：設(shè)計(jì)繪制變電所低壓側(cè)主接線圖。/r/n周四：設(shè)計(jì)繪制變電所低壓側(cè)主接線圖。/r/n周五：設(shè)計(jì)繪制變電所電氣平面布置圖。/r/n第2周周一：短路電流計(jì)算，上下壓電器及電線電纜選擇計(jì)算。/r/n周二：編制設(shè)計(jì)報(bào)告正文〔設(shè)計(jì)說明書、計(jì)算書〕電子版。/r/n周三：整理打印設(shè)計(jì)報(bào)告，交設(shè)計(jì)成果。/r/n要求根據(jù)設(shè)計(jì)任務(wù)及工程實(shí)際情況，按照平安可靠、技術(shù)先進(jìn)、經(jīng)濟(jì)合理的要求，完成10kV變電所的電氣設(shè)計(jì)〔變電所出線保護(hù)電器選擇整定及電纜截面選擇設(shè)計(jì)分工合作完成〕。設(shè)計(jì)深度應(yīng)到達(dá)初步設(shè)計(jì)要求，制圖應(yīng)符合國家標(biāo)準(zhǔn)要求。/r/n4．實(shí)物內(nèi)容及要求/r/n課程設(shè)計(jì)報(bào)告文本內(nèi)容包括：1.封面；2.任務(wù)書；3.目錄；4.正文；5.致謝；6.參考文獻(xiàn)；7.附錄〔課程設(shè)計(jì)圖紙〕。/r/n4.1/r/n設(shè)計(jì)報(bào)告正文內(nèi)容/r/n〔1〕工程概況與設(shè)計(jì)依據(jù)/r/n〔2〕負(fù)荷計(jì)算與無功補(bǔ)償設(shè)計(jì)/r/n〔3〕供配電系統(tǒng)一次接線設(shè)計(jì)/r/n〔4〕變電所設(shè)計(jì)/r/n〔5〕短路計(jì)算與上下壓電器選擇/r/n〔6〕電線電纜選擇/r/n〔7〕低壓配電線路保護(hù)設(shè)計(jì)/r/n設(shè)計(jì)報(bào)告正文編寫的一般要求是：必須說明設(shè)計(jì)主題，突出闡述設(shè)計(jì)方案、文字精煉、計(jì)算簡明，條理清晰、層次清楚?！沧冸娝鼍€局部內(nèi)容各有側(cè)重〕/r/n設(shè)計(jì)報(bào)告正文采用A4紙打印。/r/n4.2/r/n設(shè)計(jì)圖紙/r/n〔1〕變電所高壓側(cè)電氣主接線圖〔1張A3〕/r/n〔2〕變電所低壓側(cè)電氣主接線圖〔2～4張A3〕/r/n〔3〕變電所電氣平面布置圖〔1張A3〕/r/n設(shè)計(jì)圖紙繪制的一般要求是：滿足設(shè)計(jì)要求，遵循制圖標(biāo)準(zhǔn)，依據(jù)設(shè)計(jì)標(biāo)準(zhǔn)，比例適當(dāng)、布局合理，講究繪圖質(zhì)量?！沧冸娝鼍€局部內(nèi)容各有側(cè)重〕/r/n設(shè)計(jì)圖紙采用A3圖紙CAD出圖。與報(bào)告正文一起裝訂成冊(cè)。/r/n5．設(shè)計(jì)指導(dǎo)書及參考文獻(xiàn)/r/n[1]/r/n/r/n翁雙安．供配電工程設(shè)計(jì)指導(dǎo)/r/n[/r/nM/r/n]/r/n．北京：機(jī)械工業(yè)出版社，2021/r/n[/r/n2/r/n]/r/n/r/n莫岳平、翁雙安．供配電工程/r/n[/r/nM/r/n]/r/n．北京：機(jī)械工業(yè)出版社，2021/r/n[/r/n3/r/n]/r/n/r/n任元會(huì)．工業(yè)與民用配電設(shè)計(jì)手冊(cè)/r/n[/r/nM/r/n]/r/n．3版．北京：中國電力出版社，2005/r/n6．學(xué)生任務(wù)分配/r/n表1課程設(shè)計(jì)任務(wù)分配表/r/n序號(hào)/r/n課題名稱/r/n班級(jí)/r/n學(xué)號(hào)〔末兩位〕/r/n備注/r/n14/r/n萬馬商業(yè)樓10kV配變電所電氣設(shè)計(jì)/r/n電氣0801/r/n34，35/r/n變電所出線分工合作/r/n電氣0802/r/n33，34，35/r/n7．完成期限/r/n任務(wù)書寫于2021年6月8日，完成期限為2021年7月8日/r/n8．指導(dǎo)教師/r/n翁雙安/r/n目錄/r/n1/r/n/r/n工程概況與設(shè)計(jì)依據(jù)/r/n…………/r/n.6/r/n1.1工程概況/r/n…………………/r/n6/r/n1.2/r/n/r/n設(shè)計(jì)依據(jù)/r/n…………………/r/n6/r/n2/r/n負(fù)荷計(jì)算及無功補(bǔ)償設(shè)計(jì)……………………/r/n.7/r/n2.1負(fù)荷數(shù)據(jù)/r/n…………………/r/n7/r/n2.2/r/n負(fù)荷計(jì)算…………………/r/n9/r/n2.2.1照明負(fù)荷低壓配電干線負(fù)荷計(jì)算/r/n………………/r/n./r/n…/r/n9/r/n2.2.2電力負(fù)荷與平時(shí)消防負(fù)荷低壓配電干線負(fù)荷計(jì)算/r/n………………/r/n.10/r/n2.2.3火災(zāi)時(shí)消防負(fù)荷低壓配電干線負(fù)荷計(jì)算/r/n…………/r/n11/r/n2.2.4變電所負(fù)荷計(jì)算/r/n……………………/r/n13/r/n3/r/n供配電系統(tǒng)一次接線設(shè)計(jì)……………………/r/n14/r/n3.1/r/n負(fù)荷分級(jí)及供電電源…………………/r/n.14/r/n3.2/r/n電壓/r/n選擇/r/n與/r/n電能質(zhì)量/r/n…………………/r/n.15/r/n3.3/r/n/r/n電力/r/n變壓器選擇………/r/n.15/r/n3.4/r/n變電所電氣主接線設(shè)計(jì)………………/r/n.18/r/n3.4.1變電所高壓側(cè)電氣主接線設(shè)計(jì)/r/n…………………/r/n..18/r/n3.4.2變電所低壓側(cè)電氣主接線設(shè)計(jì)/r/n…………………/r/n..18/r/n4/r/n變電所/r/n布置/r/n設(shè)計(jì)………………/r/n19/r/n4.1總體布置/r/n…………………/r/n19/r/n4.2配電裝置通道與平安凈距/r/n………………/r/n19/r/n5/r/n/r/n短路電流計(jì)算與/r/n上下壓電器選擇……………/r/n20/r/n5.1/r/n/r/n變電所高壓側(cè)/r/n短路電流計(jì)算…………/r/n.20/r/n5.2/r/n低壓電網(wǎng)短路電流計(jì)算………………/r/n.20/r/n5.2.1變壓器低壓側(cè)短路電流計(jì)算/r/n……/r/n..20./r/n5.2.2低壓配電線路短路電流計(jì)算/r/n……/r/n..24/r/n5.3/r/n高壓電器選擇…………/r/n.28/r/n5.4高壓互感器選擇/r/n………/r/n.29/r/n5.5/r/n低壓/r/n斷路器的初步/r/n選擇………………/r/n.30/r/n5.5.1配電干線保護(hù)斷路器過電流脫扣器的初步選擇/r/n………………/r/n...30/r/n5.5.2變電所低壓電源進(jìn)線斷路器的初步選擇/r/n………/r/n...32/r/n6電線電纜選擇/r/n…………………/r/n33/r/n6.1高壓進(jìn)出線電纜選擇/r/n…………………/r/n.33/r/n6.2變電所硬母線選擇/r/n……………………/r/n.34/r/n6.3低壓配電干線電纜選擇/r/n………………/r/n.36/r/n7低壓配電線路保護(hù)設(shè)計(jì)/r/n………/r/n.41/r/n7.1低壓配電線路的保護(hù)設(shè)置/r/n……………/r/n.41/r/n7.2低壓斷路器過電流脫扣器的整定/r/n……/r/n.41/r/n7.2.1配電干線保護(hù)斷路器過電流脫扣器的整定/r/n……/r/n..41/r/n7.2.2變電所低壓電源進(jìn)線斷路器的整定/r/n……………/r/n..44/r/n致謝/r/n………………/r/n46/r/n參考文獻(xiàn)/r/n…………/r/n47/r/n附錄設(shè)計(jì)圖紙/r/n…………………/r/n..47/r/n1/r/n/r/n工程概況與設(shè)計(jì)依據(jù)/r/n1.1工程概況/r/n本工程為揚(yáng)州市萬馬商業(yè)樓，該工程為地下室一層，地上七層，框架結(jié)構(gòu)，現(xiàn)澆樓板。/r/n本工程低壓配電電壓為220/380V,電源引自地下變配電室，變配電室電氣參見當(dāng)?shù)赜嘘P(guān)部門施工圖紙，處穿鋼管保護(hù)，同時(shí)做好防水處理。/r/n1.2/r/n設(shè)計(jì)依據(jù)/r/n設(shè)計(jì)根據(jù)國家有關(guān)電氣標(biāo)準(zhǔn)及江蘇建設(shè)標(biāo)準(zhǔn),建筑專業(yè)提供的平、立、剖面甲方提供的設(shè)計(jì)要求。/r/n1.?民用建筑電氣設(shè)計(jì)標(biāo)準(zhǔn)?/r/nJGJ/T16-92/r/n2.?供配電設(shè)計(jì)標(biāo)準(zhǔn)?/r/nGB50052-95/r/n3.?10kV及以下變電所設(shè)計(jì)標(biāo)準(zhǔn)?/r/nGB50053-94/r/n4.?低壓配電設(shè)計(jì)標(biāo)準(zhǔn)?/r/nGB50054-95/r/n5.?建筑設(shè)計(jì)防火標(biāo)準(zhǔn)?GB50016-2006(2006版)/r/n6.?建筑物防雷設(shè)計(jì)標(biāo)準(zhǔn)?GB50057-94(2000版)/r/n7.?建筑電氣工程施工質(zhì)量驗(yàn)收標(biāo)準(zhǔn)?GB-50303-2002/r/n8.?剩余電流動(dòng)作保護(hù)裝置安裝和運(yùn)行?GB-13955-2005/r/n9.?建筑照明設(shè)計(jì)標(biāo)準(zhǔn)?GB50034-2004/r/n10.?建筑物電子信息系統(tǒng)防雷技術(shù)標(biāo)準(zhǔn)?GB50343-2004/r/n11.?通用用電設(shè)備配電設(shè)計(jì)標(biāo)準(zhǔn)?/r/nGB50055-93/r/n12.國家和江蘇建筑標(biāo)準(zhǔn)設(shè)計(jì)有關(guān)標(biāo)準(zhǔn)等。/r/n2負(fù)荷計(jì)算及無功補(bǔ)償設(shè)計(jì)/r/n2.1負(fù)荷數(shù)據(jù)/r/n商業(yè)樓有220V單相用電設(shè)備〔如照明回路〕，也有380V三相用電設(shè)備(如電力負(fù)荷)。各類負(fù)荷中有平時(shí)需要運(yùn)行的用電設(shè)備，也有在發(fā)生火災(zāi)時(shí)才需要運(yùn)行的消防用電設(shè)備。/r/n根據(jù)方案設(shè)計(jì)，各層用電設(shè)備負(fù)荷數(shù)據(jù)見表2-1。/r/n表2-1本建筑工程各層用電設(shè)備負(fù)荷數(shù)據(jù)/r/n用電設(shè)備名稱/r/n配電干線/r/n額定容量/kW/r/n功率因數(shù)/r/n照明回路/r/n一層商店照明/r/nW5/r/n196/r/n0.9/r/n二層商店照明/r/nW9/r/n80/r/n0.9/r/n三層商店照明/r/nW11/r/n80/r/n0.9/r/n4~7層照明/r/nW13/r/n800/r/n0.85/r/n地下室車庫照明/r/nW61/r/n6.3/r/n0.9/r/n地下室車庫照明/r/nW63/r/n6.4/r/n0.9/r/n設(shè)備房照明/r/nW65/r/n3.9/r/n0.85/r/n電力及平時(shí)消防回路/r/n消防控制中心/r/nW1/r/n10/r/n0.8/r/n4~7層電力/r/nW15/r/n600/r/n0.9/r/n消防電梯/r/nW47/r/n30/r/n0.7/r/n屋面電梯/r/nW49/r/n30/r/n0.8/r/n屋面穩(wěn)壓泵/r/nW51/r/n11/r/n0.8/r/n消防電梯/r/nW53/r/n15/r/n0.7/r/n地下室電力/r/nW55/r/n11.5/r/n0.9/r/n地下室電力/r/nW57/r/n13.6/r/n0.9/r/n鍋爐房電力/r/nW59/r/n50.25/r/n0.9/r/n空調(diào)機(jī)房水泵冷卻塔/r/nW60/r/n303/r/n0.8/r/n公用變電所/r/nW67/r/n10/r/n0.9/r/n地下室通風(fēng)機(jī)/r/nW69/r/n2.2/r/n0.8/r/n地下室通風(fēng)機(jī)/r/nW71/r/n11/r/n0.8/r/n地下室通風(fēng)機(jī)/r/nW73/r/n2.2/r/n0.8/r/n地下室排煙風(fēng)機(jī)/r/nW75/r/n22/r/n0.8/r/n地下室排煙風(fēng)機(jī)/r/nW77/r/n11/r/n0.8/r/n地下室排煙風(fēng)機(jī)/r/nW79/r/n22/r/n0.8/r/n制冷機(jī)組/r/nW81/r/n257/r/n0.8/r/n生活泵/r/nW84/r/n17.2/r/n0.8/r/n火災(zāi)時(shí)消防回路/r/n消防控制中心/r/nW1/r/n10/r/n0.8/r/n應(yīng)急照明/r/nW3/r/n25/r/n0.9/r/n應(yīng)急照明/r/nW7/r/n10/r/n0.9/r/n四層屋面正壓風(fēng)機(jī)/r/nW17/r/n22.5/r/n0.8/r/n四層屋面正壓風(fēng)機(jī)/r/nW19/r/n30/r/n0.8/r/n四層排煙風(fēng)機(jī)/r/nW21/r/n7.5/r/n0.8/r/n四層排煙風(fēng)機(jī)/r/nW23/r/n7.5/r/n0.8/r/n五層排煙風(fēng)機(jī)/r/nW25/r/n7.5/r/n0.8/r/n五層排煙風(fēng)機(jī)/r/nW27/r/n7.5/r/n0.8/r/n六層排煙風(fēng)機(jī)/r/nW29/r/n7.5/r/n0.8/r/n六層排煙風(fēng)機(jī)/r/nW31/r/n7.5/r/n0.8/r/n七層排煙風(fēng)機(jī)/r/nW33/r/n7.5/r/n0.8/r/n七層排煙風(fēng)機(jī)/r/nW35/r/n7.5/r/n0.8/r/n內(nèi)廊排煙風(fēng)機(jī)/r/nW37/r/n4/r/n0.8/r/n屋面正壓風(fēng)機(jī)/r/nW39/r/n30/r/n0.8/r/n內(nèi)廊排煙風(fēng)機(jī)/r/nW41/r/n8/r/n0.8/r/n屋面正壓風(fēng)機(jī)/r/nW43/r/n30/r/n0.8/r/n屋面正壓風(fēng)機(jī)/r/nW45/r/n22.5/r/n0.8/r/n消防電梯/r/nW47/r/n30/r/n0.7/r/n屋面穩(wěn)壓泵/r/nW51/r/n11/r/n0.8/r/n消防電梯/r/nW53/r/n15/r/n0.7/r/n公用變電所/r/nW67/r/n10/r/n0.9/r/n地下室通風(fēng)機(jī)/r/nW69/r/n2.2/r/n0.8/r/n地下室通風(fēng)機(jī)/r/nW71/r/n11/r/n0.8/r/n地下室通風(fēng)機(jī)/r/nW73/r/n2.2/r/n0.8/r/n地下室排煙風(fēng)機(jī)/r/nW75/r/n22/r/n0.8/r/n地下室排煙風(fēng)機(jī)/r/nW77/r/n11/r/n0.8/r/n地下室排煙風(fēng)機(jī)/r/nW79/r/n22/r/n0.8/r/n消火栓泵/r/nW86/r/n37/r/n0.8/r/n噴淋泵/r/nW88/r/n110/r/n0.8/r/n噴霧泵/r/nW90/r/n37/r/n0.8/r/n2.2負(fù)荷計(jì)算/r/n按需要系數(shù)法確定三相用電設(shè)備組計(jì)算負(fù)荷的根本公式如下：/r/n有功功率〔kw〕P/r/nC/r/n=K/r/nd/r/nP/r/nC/r/n無功功率〔kvar〕Q/r/nC/r/n=P/r/nC/r/ntan/r/nφ/r/n視在功率〔kVA〕/r/nS/r/nC/r/n=P/r/nC/r/n/cosφ/r/n計(jì)算電流〔A〕/r/nI/r/nC/r/n=S/r/nC/r/n/(/r/nU/r/nN/r/n)/r/n2.2.1照明負(fù)荷低壓配電干線負(fù)荷計(jì)算/r/n照明負(fù)荷回路低壓配電干線計(jì)算負(fù)荷按照需要系數(shù)法計(jì)算，見表2-2。/r/n表2-2/r/n照明負(fù)荷低壓配電干線負(fù)荷計(jì)算/r/n變電所負(fù)荷計(jì)算表/r/n用電設(shè)備名稱/r/n照明回路名稱/r/n額定容量/kW/r/n需要系數(shù)Kd/r/n功率因數(shù)cos/r/nφ/r/n有功功率/kW/r/n無功功率/kvar/r/n視在功率/kVA/r/n計(jì)算電流A/r/n一層商店照明/r/nW5/r/n196/r/n0.7/r/n0.9/r/n137.2/r/n66.4/r/n152.4/r/n231.7/r/n二層商店照明/r/nW9/r/n80/r/n0.8/r/n0.9/r/n64.0/r/n31.0/r/n71.1/r/n108.1/r/n三層商店照明/r/nW11/r/n80/r/n0.8/r/n0.9/r/n64.0/r/n31.0/r/n71.1/r/n108.1/r/n4~7層照明/r/nW13/r/n800/r/n0.7/r/n0.85/r/n560.0/r/n347.1/r/n658.8/r/n1001.4/r/n地下室車庫照明/r/nW61/r/n6.3/r/n1/r/n0.9/r/n6.3/r/n3.1/r/n7.0/r/n10.6/r/n地下室車庫照明/r/nW63/r/n6.4/r/n1/r/n0.9/r/n6.4/r/n3.1/r/n7.1/r/n10.8/r/n設(shè)備房照明/r/nW65/r/n3.9/r/n1/r/n0.85/r/n3.9/r/n2.4/r/n4.6/r/n7.0/r/n合計(jì)/r/n1172.6/r/n0.72/r/n0.87/r/n841.8/r/n484.1/r/n971.1/r/n1476.0/r/n乘同時(shí)系數(shù)〔0.75/0.80)/r/n1172.6/r/n0.54/r/n0.85/r/n631.4/r/n387.3/r/n740.7/r/n1125.8/r/n2.2.2電力負(fù)荷與平時(shí)消防負(fù)荷低壓配電干線負(fù)荷計(jì)算/r/n電力負(fù)荷與平時(shí)消防負(fù)荷低壓配電干線負(fù)荷計(jì)算采用需要系數(shù)法計(jì)算，見表2-3。/r/n表2-3/r/n電力負(fù)荷與平時(shí)消防負(fù)荷低壓配電干線負(fù)荷計(jì)算/r/n用電設(shè)備名稱/r/n電力及平時(shí)消防回路名稱/r/n額定容量/kW/r/n需要系數(shù)Kd/r/n功率因數(shù)cos/r/nφ/r/n有功功率/kW/r/n無功功率/kvar/r/n視在功率/kVA/r/n計(jì)算電流A/r/n消防控制中心/r/nW1/r/n10/r/n1/r/n0.8/r/n10.0/r/n7.5/r/n12.5/r/n19.0/r/n4~7層電力/r/nW15/r/n600/r/n0.7/r/n0.9/r/n420.0/r/n203.4/r/n466.7/r/n709.3/r/n消防電梯/r/nW47/r/n30/r/n1/r/n0.7/r/n30.0/r/n30.6/r/n42.9/r/n65.1/r/n屋面電梯/r/nW49/r/n30/r/n1/r/n0.8/r/n30.0/r/n22.5/r/n37.5/r/n57.0/r/n屋面穩(wěn)壓泵/r/nW51/r/n11/r/n1/r/n0.8/r/n11.0/r/n8.3/r/n13.8/r/n20.9/r/n消防電梯/r/nW53/r/n15/r/n1/r/n0.7/r/n15.0/r/n15.3/r/n21.4/r/n32.6/r/n地下室電力/r/nW55/r/n11.5/r/n0.8/r/n0.9/r/n9.2/r/n4.5/r/n10.2/r/n15.5/r/n地下室電力/r/nW57/r/n13.6/r/n0.8/r/n0.9/r/n10.9/r/n5.3/r/n12.1/r/n18.4/r/n鍋爐房電力/r/nW59/r/n50.25/r/n0.8/r/n0.9/r/n40.2/r/n19.5/r/n44.7/r/n67.9/r/n空調(diào)機(jī)房水泵冷卻塔/r/nW60/r/n303/r/n0.8/r/n0.8/r/n242.4/r/n181.8/r/n303.0/r/n460.6/r/n公用變電所/r/nW67/r/n10/r/n0.8/r/n0.9/r/n8.0/r/n3.9/r/n8.9/r/n13.5/r/n地下室通風(fēng)機(jī)/r/nW69/r/n2.2/r/n1/r/n0.8/r/n2.2/r/n1.7/r/n2.8/r/n4.2/r/n地下室通風(fēng)機(jī)/r/nW71/r/n11/r/n1/r/n0.8/r/n11.0/r/n8.3/r/n13.8/r/n20.9/r/n地下室通風(fēng)機(jī)/r/nW73/r/n2.2/r/n1/r/n0.8/r/n2.2/r/n1.7/r/n2.8/r/n4.2/r/n地下室排煙風(fēng)機(jī)/r/nW75/r/n22/r/n1/r/n0.8/r/n22.0/r/n16.5/r/n27.5/r/n41.8/r/n地下室排煙風(fēng)機(jī)/r/nW77/r/n11/r/n/r/n1/r/n0.8/r/n11.0/r/n8.3/r/n13.8/r/n20.9/r/n地下室排煙風(fēng)機(jī)/r/nW79/r/n22/r/n1/r/n0.8/r/n22.0/r/n16.5/r/n27.5/r/n41.8/r/n制冷機(jī)組/r/nW81/r/n257/r/n1/r/n0.8/r/n257.0/r/n192.8/r/n321.3/r/n488.3/r/n生活泵/r/nW84/r/n17.2/r/n1/r/n0.8/r/n17.2/r/n12.9/r/n21.5/r/n32.7/r/n合計(jì)/r/n1154.75/r/n1.01/r/n0.84/r/n1171.3/r/n760.9/r/n1396.7/r/n2123.0/r/n乘同時(shí)系數(shù)〔0.75/0.80)/r/n1154.75/r/n0.76/r/n0.82/r/n878.5/r/n608.7/r/n1068.7/r/n1624.5/r/n2.2.3火災(zāi)時(shí)消防負(fù)荷低壓配電干線負(fù)荷計(jì)算/r/n火災(zāi)時(shí)消防負(fù)荷低壓配電干線負(fù)荷計(jì)算采用需要系數(shù)法計(jì)算，見表2-4。/r/n表2-4火災(zāi)時(shí)消防負(fù)荷低壓配電干線負(fù)荷計(jì)算/r/n用電設(shè)備名稱/r/n火災(zāi)時(shí)消防回路名稱/r/n額定容量/kW/r/n需要系數(shù)Kd/r/n功率因數(shù)cos/r/nφ/r/n有功功率/kW/r/n無功功率/kvar/r/n視在功率/kVA/r/n計(jì)算電流A/r/n消防控制中心/r/nW1/r/n10/r/n1/r/n0.8/r/n10.0/r/n7.5/r/n12.5/r/n19.0/r/n應(yīng)急照明/r/nW3/r/n25/r/n1/r/n0.9/r/n25.0/r/n12.1/r/n27.8/r/n42.2/r/n應(yīng)急照明/r/nW7/r/n10/r/n1/r/n0.9/r/n10.0/r/n4.8/r/n11.1/r/n16.9/r/n四層屋面正壓風(fēng)機(jī)/r/nW17/r/n22.5/r/n1/r/n0.8/r/n22.5/r/n16.9/r/n28.1/r/n42.8/r/n四層屋面正壓風(fēng)機(jī)/r/nW19/r/n30/r/n0.8/r/n0.8/r/n24.0/r/n18.0/r/n30.0/r/n45.6/r/n四層排煙風(fēng)機(jī)/r/nW21/r/n7.5/r/n1/r/n0.8/r/n7.5/r/n5.6/r/n9.4/r/n14.3/r/n四層排煙風(fēng)機(jī)/r/nW23/r/n7.5/r/n1/r/n0.8/r/n7.5/r/n5.6/r/n9.4/r/n14.3/r/n五層排煙風(fēng)機(jī)/r/nW25/r/n7.5/r/n1/r/n0.8/r/n7.5/r/n5.6/r/n9.4/r/n14.3/r/n五層排煙風(fēng)機(jī)/r/nW27/r/n7.5/r/n1/r/n0.8/r/n7.5/r/n5.6/r/n9.4/r/n14.3/r/n六層排煙風(fēng)機(jī)/r/nW29/r/n7.5/r/n1/r/n0.8/r/n7.5/r/n5.6/r/n9.4/r/n14.3/r/n六層排煙風(fēng)機(jī)/r/nW31/r/n7.5/r/n1/r/n0.8/r/n7.5/r/n5.6/r/n9.4/r/n14.3/r/n七層排煙風(fēng)機(jī)/r/nW33/r/n7.5/r/n1/r/n0.8/r/n7.5/r/n5.6/r/n9.4/r/n14.3/r/n七層排煙風(fēng)機(jī)/r/nW35/r/n7.5/r/n1/r/n0.8/r/n7.5/r/n5.6/r/n9.4/r/n14.3/r/n內(nèi)廊排煙風(fēng)機(jī)/r/nW37/r/n4/r/n1/r/n0.8/r/n4.0/r/n3.0/r/n5.0/r/n7.6/r/n屋面正壓風(fēng)機(jī)/r/nW39/r/n30/r/n0.8/r/n0.8/r/n24.0/r/n18.0/r/n30.0/r/n45.6/r/n內(nèi)廊排煙風(fēng)機(jī)/r/nW41/r/n8/r/n1/r/n0.8/r/n8.0/r/n6.0/r/n10.0/r/n15.2/r/n屋面正壓風(fēng)機(jī)/r/nW43/r/n30/r/n0.8/r/n0.8/r/n24.0/r/n18.0/r/n30.0/r/n45.6/r/n屋面正壓風(fēng)機(jī)/r/nW45/r/n22.5/r/n1/r/n0.8/r/n22.5/r/n16.9/r/n28.1/r/n42.8/r/n消防電梯/r/nW47/r/n30/r/n1/r/n0.7/r/n30.0/r/n30.6/r/n42.9/r/n65.1/r/n屋面穩(wěn)壓泵/r/nW51/r/n11/r/n1/r/n0.8/r/n11.0/r/n8.3/r/n13.8/r/n20.9/r/n消防電梯/r/nW53/r/n15/r/n1/r/n0.7/r/n15.0/r/n15.3/r/n21.4/r/n32.6/r/n公用變電所/r/nW67/r/n10/r/n0.8/r/n0.9/r/n8.0/r/n3.9/r/n8.9/r/n13.5/r/n地下室通風(fēng)機(jī)/r/nW69/r/n2.2/r/n1/r/n0.8/r/n2.2/r/n1.7/r/n2.8/r/n4.2/r/n地下室通風(fēng)機(jī)/r/nW71/r/n11/r/n1/r/n0.8/r/n11.0/r/n8.3/r/n13.8/r/n20.9/r/n地下室通風(fēng)機(jī)/r/nW73/r/n2.2/r/n1/r/n0.8/r/n2.2/r/n1.7/r/n2.8/r/n4.2/r/n地下室排煙風(fēng)機(jī)/r/nW75/r/n22/r/n/r/n1/r/n0.8/r/n22.0/r/n16.5/r/n27.5/r/n41.8/r/n地下室排煙風(fēng)機(jī)/r/nW77/r/n11/r/n/r/n1/r/n0.8/r/n11.0/r/n8.3/r/n13.8/r/n20.9/r/n地下室排煙風(fēng)機(jī)/r/nW79/r/n22/r/n/r/n1/r/n0.8/r/n22.0/r/n16.5/r/n27.5/r/n41.8/r/n消火栓泵/r/nW86/r/n37/r/n1/r/n0.8/r/n37.0/r/n27.8/r/n46.3/r/n70.3/r/n噴淋泵/r/nW88/r/n110/r/n1/r/n0.8/r/n110.0/r/n82.5/r/n137.5/r/n209.0/r/n噴霧泵/r/nW90/r/n37/r/n1/r/n0.8/r/n37.0/r/n27.8/r/n46.3/r/n70.3/r/n合計(jì)/r/n572.4/r/n0.97/r/n0.80/r/n552.4/r/n415.0/r/n690.9/r/n1050.2/r/n乘同時(shí)系數(shù)〔0.95/0.98)/r/n572.4/r/n0.92/r/n0.79/r/n524.8/r/n406.7/r/n663.9/r/n1009.2/r/n2.2.4變電所負(fù)荷計(jì)算/r/n先計(jì)算變電所總計(jì)算負(fù)荷，以便選擇變壓器的臺(tái)數(shù)與容量。變電所總計(jì)算負(fù)荷見表2-5。/r/n表2-5/r/n變電所負(fù)荷計(jì)算/r/n回路名稱/r/n額定容量/kW/r/n需要系數(shù)Kd/r/n功率因數(shù)cos/r/nφ/r/n有功功率/kW/r/n無功功率/kvar/r/n視在功率/kVA/r/n計(jì)算電流A/r/n照明回路/r/n1172.6/r/n0.72/r/n0.87/r/n841.8/r/n484.1/r/n971.1/r/n1476.0/r/n電力回路/r/n1154.8/r/n1.01/r/n0.84/r/n1171.3/r/n760.9/r/n1396.7/r/n2123.0/r/n0.0/r/n0.0/r/n0.0/r/n0.0/r/n合計(jì)/r/n2327.4/r/n0.86/r/n0.85/r/n2021.1/r/n1245.0/r/n2366.9/r/n3597.8/r/n乘同時(shí)系數(shù)〔0.75/0.80)/r/n2327.35/r/n0.65/r/n0.83/r/n1509.8/r/n996.0/r/n1808.7/r/n2749.3/r/n3供配電系統(tǒng)一次接線設(shè)計(jì)/r/n3.1負(fù)荷分級(jí)及供電電源/r/n本工程多為一級(jí)與二級(jí)負(fù)荷。一級(jí)負(fù)荷應(yīng)設(shè)有兩個(gè)電源供電，當(dāng)一個(gè)電源發(fā)生故障時(shí)，另一個(gè)電源應(yīng)不至于同時(shí)受到破壞。兩個(gè)電源均能承當(dāng)用戶的全部一級(jí)負(fù)荷設(shè)備的供電。二級(jí)負(fù)荷的供電系統(tǒng)，宜由兩回電源線路供電。三級(jí)負(fù)荷，對(duì)供電無特殊要求。/r/n平時(shí)一二級(jí)負(fù)荷見表3-1。/r/n表3-1平時(shí)一二級(jí)負(fù)荷計(jì)算/r/n平時(shí)一二級(jí)負(fù)荷回路名稱/r/n額定容量/kW/r/n需要系數(shù)Kd/r/n功率因數(shù)cos/r/nφ/r/n有功功率/kW/r/n無功功率/kvar/r/n視在功率/kVA/r/n計(jì)算電流A/r/n消防控制中心/r/nW1/r/n10/r/n1/r/n0.8/r/n10.0/r/n7.5/r/n12.5/r/n19.0/r/n應(yīng)急照明/r/nW3/r/n25/r/n1/r/n0.9/r/n25.0/r/n12.1/r/n27.8/r/n42.2/r/n一層商店照明/r/nW5/r/n196/r/n0.7/r/n0.9/r/n137.2/r/n66.4/r/n152.4/r/n231.7/r/n應(yīng)急照明/r/nW7/r/n10/r/n1/r/n0.9/r/n10.0/r/n4.8/r/n11.1/r/n16.9/r/n二層商店照明/r/nW9/r/n80/r/n0.8/r/n0.9/r/n64.0/r/n31.0/r/n71.1/r/n108.1/r/n三層商店照明/r/nW11/r/n80/r/n0.8/r/n0.9/r/n64.0/r/n31.0/r/n71.1/r/n108.1/r/n4~7層電力/r/nW15/r/n600/r/n0.7/r/n0.9/r/n420.0/r/n203.4/r/n466.7/r/n709.3/r/n消防電梯/r/nW47/r/n30/r/n1/r/n0.7/r/n30.0/r/n30.6/r/n42.9/r/n65.1/r/n屋面電梯/r/nW49/r/n30/r/n1/r/n0.8/r/n30.0/r/n22.5/r/n37.5/r/n57.0/r/n屋面穩(wěn)壓泵/r/nW51/r/n11/r/n1/r/n0.8/r/n11.0/r/n8.3/r/n13.8/r/n20.9/r/n消防電梯/r/nW53/r/n15/r/n1/r/n0.7/r/n15.0/r/n15.3/r/n21.4/r/n32.6/r/n地下室電力/r/nW55/r/n11.5/r/n0.8/r/n0.9/r/n9.2/r/n4.5/r/n10.2/r/n15.5/r/n地下室電力/r/nW57/r/n13.6/r/n0.8/r/n0.9/r/n10.9/r/n5.3/r/n12.1/r/n18.4/r/n鍋爐房電力/r/nW59/r/n50.25/r/n0.8/r/n0.9/r/n40.2/r/n19.5/r/n44.7/r/n67.9/r/n空調(diào)機(jī)房水泵冷卻塔/r/nW60/r/n303/r/n0.8/r/n0.8/r/n242.4/r/n181.8/r/n303.0/r/n460.6/r/n地下室車庫照明/r/nW61/r/n6.3/r/n1/r/n0.9/r/n6.3/r/n3.1/r/n7.0/r/n10.6/r/n地下室車庫照明/r/nW63/r/n6.4/r/n1/r/n0.9/r/n6.4/r/n3.1/r/n7.1/r/n10.8/r/n設(shè)備房照明/r/nW65/r/n3.9/r/n1/r/n0.85/r/n3.9/r/n2.4/r/n4.6/r/n7.0/r/n公用變電所/r/nW67/r/n10/r/n0.8/r/n0.9/r/n8.0/r/n3.9/r/n8.9/r/n13.5/r/n地下室通風(fēng)機(jī)/r/nW69/r/n2.2/r/n1/r/n0.8/r/n2.2/r/n1.7/r/n2.8/r/n4.2/r/n地下室通風(fēng)機(jī)/r/nW71/r/n11/r/n1/r/n0.8/r/n11.0/r/n8.3/r/n13.8/r/n20.9/r/n地下室通風(fēng)機(jī)/r/nW73/r/n2.2/r/n1/r/n0.8/r/n2.2/r/n1.7/r/n2.8/r/n4.2/r/n地下室排煙風(fēng)機(jī)/r/nW75/r/n22/r/n/r/n1/r/n0.8/r/n22.0/r/n16.5/r/n27.5/r/n41.8/r/n地下室排煙風(fēng)機(jī)/r/nW77/r/n11/r/n/r/n1/r/n0.8/r/n11.0/r/n8.3/r/n13.8/r/n20.9/r/n地下室排煙風(fēng)機(jī)/r/nW79/r/n22/r/n/r/n1/r/n0.8/r/n22.0/r/n16.5/r/n27.5/r/n41.8/r/n生活泵/r/nW84/r/n17.2/r/n1/r/n0.8/r/n17.2/r/n12.9/r/n21.5/r/n32.7/r/n合計(jì)/r/n1087/r/n0.75/r/n0.88/r/n816.2/r/n433.0/r/n923.9/r/n1404.4/r/n乘同時(shí)系數(shù)〔0.80/0.85)/r/n1087/r/n0.60/r/n0.87/r/n653.0/r/n368.0/r/n749.5/r/n1139.3/r/n功率因數(shù)補(bǔ)償/r/n-200/r/n功率因數(shù)補(bǔ)償后/r/n1087/r/n0.60/r/n0.97/r/n653.0/r/n168.0/r/n674.2/r/n1024.8/r/n3.2電壓選擇與電能質(zhì)量/r/n本工程低壓配電電壓為~220/380V,電源引自地下一層變配電室，變配電室電氣參見當(dāng)?shù)赜嘘P(guān)部門施工圖紙。/r/n低壓配電柜進(jìn)線采用YJV電力電纜埋地引入，埋深為室外地坪下-0.7m，穿鋼管保護(hù)，同時(shí)做好防水處理。/r/n照明與電力配電回路分開。對(duì)于較大容量的電力設(shè)備采用專線供電。/r/n3.3電力變壓器選擇/r/n〔1〕變壓器形式與臺(tái)數(shù)/r/n/r/n本工程為一般高層建筑，變電所位于主體建筑地下一層內(nèi)，故采用SGB10型三相雙繞組干式變壓器。變壓器采用無勵(lì)磁調(diào)壓方式，電壓比10/r/n±/r/n0.5%/0.4KV,聯(lián)接組別為Dyn11，考慮到與開關(guān)柜布置在同一房間內(nèi)，帶IP2x防護(hù)外殼。/r/n因本工程有較多的一、二級(jí)負(fù)荷，故采用兩臺(tái)變壓器。/r/n〔2〕變壓器容量選擇/r/n本工程乘同時(shí)系數(shù)后的總視在功率為1808.7kVA。/r/n選擇兩臺(tái)變壓器，每臺(tái)變壓器的容量為1250/r/nkVA/r/n，正常運(yùn)行是為照明回路和電力回路。/r/n〔3〕變壓器負(fù)荷分配計(jì)算及補(bǔ)償/r/n變壓器負(fù)荷分配計(jì)算及補(bǔ)償見表3-2。/r/n表3-2變壓器負(fù)荷分配計(jì)算及無功補(bǔ)償/r/n回路名稱/r/n額定容量/kW/r/n需要系數(shù)Kd/r/n功率因數(shù)cos/r/nφ/r/n有功功率/kW/r/n無功功率/kvar/r/n視在功率/kVA/r/n計(jì)算電流A/r/n照明回路/r/n1172.6/r/n0.72/r/n0.87/r/n841.8/r/n484.1/r/n971.1/r/n1476.0/r/n電力回路/r/n1154.8/r/n1.01/r/n0.84/r/n1171.3/r/n760.9/r/n1396.7/r/n2123.0/r/n0.0/r/n0.0/r/n0.0/r/n0.0/r/n合計(jì)/r/n2327.4/r/n0.86/r/n0.85/r/n2021.1/r/n1245.0/r/n2366.9/r/n3597.8/r/n乘同時(shí)系數(shù)〔0.75/0.80)/r/n2327.35/r/n0.65/r/n0.83/r/n1509.8/r/n996.0/r/n1808.7/r/n2749.3/r/n功率因數(shù)補(bǔ)償/r/n-600/r/n功率因數(shù)補(bǔ)償后/r/n2327.35/r/n0.65/r/n0.97/r/n1509.8/r/n396.0/r/n1560.9/r/n2372.5/r/n變壓器損耗/r/n15.6/r/n78.0/r/n高壓側(cè)負(fù)荷/r/n2327.35/r/n0.65/r/n0.95/r/n1525.4/r/n474.0/r/n1597.4/r/n92.2/r/n變壓器選擇2/r/n×/r/n1250KVA/r/n2500/r/n變壓器負(fù)荷率/r/n62%/r/n變壓器T1和T2的負(fù)荷分配與計(jì)算見表3-3、3-4。/r/n表3-3變壓器T1負(fù)荷計(jì)算/r/n變壓器T1回路名稱/r/n額定容量/kW/r/n需要系數(shù)Kd/r/n功率因數(shù)cos/r/nφ/r/n有功功率/kW/r/n無功功率/kvar/r/n視在功率/kVA/r/n計(jì)算電流A/r/n消防控制中心/r/nW1/r/n10/r/n1/r/n0.8/r/n10.0/r/n7.5/r/n12.5/r/n19.0/r/n一層商店照明/r/nW5/r/n196/r/n0.7/r/n0.9/r/n137.2/r/n66.4/r/n152.4/r/n231.7/r/n二層商店照明/r/nW9/r/n80/r/n0.8/r/n0.9/r/n64.0/r/n31.0/r/n71.1/r/n108.1/r/n三層商店照明/r/nW11/r/n80/r/n0.8/r/n0.9/r/n64.0/r/n31.0/r/n71.1/r/n108.1/r/n4~7層照明/r/nW13/r/n800/r/n0.7/r/n0.85/r/n560.0/r/n347.1/r/n658.8/r/n1001.4/r/n地下室電力/r/nW55/r/n11.5/r/n0.8/r/n0.9/r/n9.2/r/n4.5/r/n10.2/r/n15.5/r/n地下室電力/r/nW57/r/n13.6/r/n0.8/r/n0.9/r/n10.9/r/n5.3/r/n12.1/r/n18.4/r/n鍋爐房電力/r/nW59/r/n50.25/r/n0.8/r/n0.9/r/n40.2/r/n19.5/r/n44.7/r/n67.9/r/n地下室車庫照明/r/nW61/r/n6.3/r/n1/r/n0.9/r/n6.3/r/n3.1/r/n7.0/r/n10.6/r/n地下室車庫照明/r/nW63/r/n6.4/r/n1/r/n0.9/r/n6.4/r/n3.1/r/n7.1/r/n10.8/r/n設(shè)備房照明/r/nW65/r/n3.9/r/n1/r/n0.85/r/n3.9/r/n2.4/r/n4.6/r/n7.0/r/n公用變電所/r/nW67/r/n10/r/n0.8/r/n0.9/r/n8.0/r/n3.9/r/n8.9/r/n13.5/r/n地下室通風(fēng)機(jī)/r/nW69/r/n2.2/r/n1/r/n0.8/r/n2.2/r/n1.7/r/n2.8/r/n4.2/r/n地下室通風(fēng)機(jī)/r/nW71/r/n11/r/n1/r/n0.8/r/n11.0/r/n8.3/r/n13.8/r/n20.9/r/n地下室通風(fēng)機(jī)/r/nW73/r/n2.2/r/n1/r/n0.8/r/n2.2/r/n1.7/r/n2.8/r/n4.2/r/n地下室排煙風(fēng)機(jī)/r/nW75/r/n22/r/n1/r/n0.8/r/n22.0/r/n16.5/r/n27.5/r/n41.8/r/n地下室排煙風(fēng)機(jī)/r/nW77/r/n11/r/n1/r/n0.8/r/n11.0/r/n8.3/r/n13.8/r/n20.9/r/n地下室排煙風(fēng)機(jī)/r/nW79/r/n22/r/n1/r/n0.8/r/n22.0/r/n16.5/r/n27.5/r/n41.8/r/n合計(jì)/r/n1247.95/r/n0.79/r/n0.86/r/n990.5/r/n577.4/r/n1146.5/r/n1742.7/r/n乘同時(shí)系數(shù)〔0.75/0.80)/r/n1247.95/r/n0.60/r/n0.85/r/n742.9/r/n461.9/r/n874.8/r/n1329.7/r/n功率因數(shù)補(bǔ)償/r/n-280/r/n功率因數(shù)補(bǔ)償后/r/n1247.95/r/n0.60/r/n0.97/r/n742.9/r/n181.9/r/n764.8/r/n1162.5/r/n表3-4變壓器T2負(fù)荷計(jì)算/r/n變壓器T2回路名稱/r/n額定容量/kW/r/n需要系數(shù)Kd/r/n功率因數(shù)cos/r/nφ/r/n有功功率/kW/r/n無功功率/kvar/r/n視在功率/kVA/r/n計(jì)算電流A/r/n4~7層電力/r/nW15/r/n600/r/n0.7/r/n0.9/r/n420.0/r/n203.4/r/n466.7/r/n709.3/r/n消防電梯/r/nW47/r/n30/r/n1/r/n0.7/r/n30.0/r/n30.6/r/n42.9/r/n65.1/r/n屋面電梯/r/nW49/r/n30/r/n1/r/n0.8/r/n30.0/r/n22.5/r/n37.5/r/n57.0/r/n屋面穩(wěn)壓泵/r/nW51/r/n11/r/n1/r/n0.8/r/n11.0/r/n8.3/r/n13.8/r/n20.9/r/n消防電梯/r/nW53/r/n15/r/n1/r/n0.7/r/n15.0/r/n15.3/r/n21.4/r/n32.6/r/n空調(diào)機(jī)房水泵冷卻塔/r/nW60/r/n303/r/n0.8/r/n0.8/r/n242.4/r/n181.8/r/n303.0/r/n460.6/r/n制冷機(jī)組/r/nW81/r/n257/r/n1/r/n0.8/r/n257.0/r/n192.8/r/n321.3/r/n488.3/r/n生活泵/r/nW84/r/n17.2/r/n1/r/n0.8/r/n17.2/r/n12.9/r/n21.5/r/n32.7/r/n合計(jì)/r/n6345.4/r/n0.16/r/n0.84/r/n1022.6/r/n667.5/r/n1221.2/r/n1856.2/r/n乘同時(shí)系數(shù)〔0.75/0.80)/r/n6345.4/r/n0.12/r/n0.82/r/n767.0/r/n534.0/r/n934.6/r/n1420.5/r/n功率因數(shù)補(bǔ)償/r/n-350/r/n功率因數(shù)補(bǔ)償后/r/n6345.4/r/n0.12/r/n0.97/r/n767.0/r/n184.0/r/n788.7/r/n1198.9/r/n3.4變電所電氣主接線設(shè)計(jì)/r/n3.4.1變電所高壓側(cè)電氣主接線設(shè)計(jì)/r/n采用分段單母線形式，由10KV電源A和電源B同時(shí)供電，母線聯(lián)絡(luò)斷路器斷開，兩個(gè)電源各承當(dāng)一半負(fù)荷。當(dāng)電源B故障或檢修時(shí)，閉合母聯(lián)斷路器，由電源A承當(dāng)全部負(fù)荷；當(dāng)電源A故障或檢修時(shí)，母聯(lián)斷路器仍斷開，由電源B承當(dāng)一半負(fù)荷。/r/n見圖紙目錄變電所高壓側(cè)電氣主接線圖，圖號(hào)電01，共1張。/r/n3.4.2變電所低壓側(cè)電氣主接線設(shè)計(jì)/r/n正常運(yùn)行時(shí)，兩臺(tái)變壓器同時(shí)運(yùn)行，母聯(lián)斷路器斷開，兩臺(tái)變壓器分列運(yùn)行，各承當(dāng)一半負(fù)荷。當(dāng)任一臺(tái)變壓器故障或檢修時(shí)，切除局部三級(jí)負(fù)荷后，閉合母聯(lián)斷路器，由另一臺(tái)變壓器承當(dāng)全部一、二級(jí)負(fù)荷及局部三級(jí)負(fù)荷。/r/n見圖紙目錄變電所低壓側(cè)電氣主接線圖，圖號(hào)電02，共8張。/r/n4變電所布置設(shè)計(jì)/r/n4.1總體布置/r/n本工程變電所為單層布置，雖含有兩個(gè)變電所，但超市變電所不再所考慮范圍內(nèi)。由于變壓器為干式并帶有IP2x防護(hù)外殼，所以可將上下壓開關(guān)柜設(shè)置與一個(gè)房間內(nèi)，即地下變配電室。由于低壓開關(guān)柜數(shù)量較多，故采用雙列面對(duì)面布置方式。本工程變電所電氣設(shè)備布置平面圖如圖紙目錄電03所示，途中按比例繪制變壓器、開關(guān)柜、直流及交流信號(hào)屏等平面布置尺寸。高壓開關(guān)柜、低壓開關(guān)柜及變壓器的相對(duì)位置是基于電纜進(jìn)出線方便的考慮，滿足規(guī)定的尺寸大小。由于干式變壓器防護(hù)外殼只有IP2x，未與低壓開關(guān)柜貼鄰安裝，兩者低壓母線之間采用架空封閉母線連接。雙列布置的低壓開關(guān)柜母線之間也采用架空封閉母線連接。/r/n4.2配電裝置通道與平安凈距/r/n本工程高壓開關(guān)柜的柜后維護(hù)通道最小處為800mm、柜前操作通道為2000mm、低壓開關(guān)柜的柜后維護(hù)通道最小為1200mm、柜前操作通道為2400mm、干式變壓器外廊與門的凈距為1000mm、與側(cè)墻的凈距為800mm、干式變壓器正面之間的距離為2400mm。以上配電裝置通道與平安凈距均滿足標(biāo)準(zhǔn)要求。/r/n5/r/n短路電流計(jì)算與/r/n上下壓電器選擇/r/n5.1變電所高壓側(cè)短路電流計(jì)算/r/n高壓三相短路電流與短路容量的計(jì)算公式：/r/nI/r/nk3"/r/n=/r/nX/r/n*/r/nI/r/nd/r/nI/r/nb/r/n/r/n=/r/nI/r/nk33/r/nI/r/nk3"/r/ni/r/np3/r/n=/r/nK/r/np/r/nI/r/nk3"/r/nS/r/nk3"/r/n=/r/ncU/r/nn/r/nI/r/nk3"/r/n上面對(duì)應(yīng)的是變電所高壓側(cè)短路電流計(jì)算電路公式，高壓側(cè)短路計(jì)算見表5-1。/r/n表5-1高壓側(cè)短路計(jì)算/r/n基準(zhǔn)值/r/n/r/nS/r/nd=100MVA/r/n，/r/nU/r/nc1=10.5kV/r/n，/r/nI/r/nd1=5.5kA/r/n序號(hào)/r/n元件/r/n短路點(diǎn)/r/n運(yùn)行參數(shù)/r/nX/r/n*/r/nI/r/nk3"/kA/r/nI/r/nb3/kA/r/nI/r/nk3/kA/r/ni/r/np3/kA/r/nS/r/nk3"/MVA/r/nI/r/nk2/kA/r/n1/r/nSA/r/n/r/nmax/r/n0.275/r/n20.0/r/n20.0/r/n20.0/r/n51.0/r/n363.7/r/n17.3/r/n/r/nmin/r/n0.344/r/n16.0/r/n16.0/r/n16.0/r/n40.8/r/n291.0/r/n13.9/r/n2/r/nWHA/r/n/r/nx/r/n/Ω/km/r/nl//r/nkm/r/n/r/n/r/n/r/n/r/n/r/n/r/n/r/n/r/n0.095/r/n2.5/r/n0.215/r/n/r/n/r/n/r/n/r/n/r/n/r/n3/r/n1＋2/r/nk-1/r/nmax/r/n0.490/r/n11.2/r/n11.2/r/n11.2/r/n28.6/r/n204.0/r/n9.7/r/nmin/r/n0.559/r/n9.8/r/n9.8/r/n9.8/r/n25.1/r/n178.9/r/n8.5/r/n5.2低壓電網(wǎng)短路電流計(jì)算/r/n5.2.1變壓器低壓側(cè)短路電流計(jì)算/r/n計(jì)算有關(guān)電路元件的阻抗/r/n=1\*GB2/r/n⑴/r/n高壓系統(tǒng)電抗〔歸算到400V側(cè)〕/r/n每相阻抗:/r/nZ/r/ns/r/n=Uc/r/n2/r/nx10/r/n-3/r/n/Sk=(400V)/r/n2/r/nx10/r/n-3/r/n/204.0MV/r/n·/r/nA=0.784M/r/nΩ/r/nX/r/ns/r/n=0.995Z/r/ns/r/n=0.995x0.784M/r/nΩ/r/n=0.780M/r/nΩ/r/n相零阻抗:/r/nX/r/nL-PE/r/n=2X/r/ns/r/n/3=0.520M/r/nΩ/r/nR/r/nL-PE/r/n=2R/r/ns/r/n/3=0.052M/r/nΩ/r/n/r/n=2\*GB2/r/n/r/n⑵/r/n變壓器的阻抗〔由附錄表查得SCB10-1250/10變壓器Dyn11聯(lián)接，/r/n△/r/nPk/r/n=11KW/r/nU/r/nk/r/n％=6/r/n每相阻抗:/r/nR/r/nT/r/n=/r/n△/r/nP/r/nk/r/nU/r/nC/r/n2/r/n//r/nS/r/nNT/r/n2/r/n=11KWx(400V)/r/n2/r/n/(1250KV/r/n·/r/nA)/r/n2/r/n=1.126M/r/nΩ/r/nZ/r/nT/r/n=/r/nU/r/nk/r/n％/r/nU/r/nC/r/n2/r/n/100/r/nS/r/nNT/r/n=6x/r/n/r/n(400V)/r/n2/r/n/100x1250KV/r/n·/r/nA=7.680M/r/nΩ/r/nX/r/nT/r/n=/r/n=7.597M/r/nΩ/r/n相零阻抗：/r/nR/r/nL-PE/r/n=R/r/nT/r/n=1.126M/r/nΩ/r/nX/r/nL-PE/r/n=X/r/nT/r/n=7.597M/r/nΩ/r/n/r/n=3\*GB2/r/n/r/n⑶/r/n母線和電纜的阻抗/r/n每相阻抗/r/n:/r/n/r/nR/r/nwb/r/n=/r/nR/r/n*L=0.013x4=0.052M/r/nΩ/r/nX/r/nwb/r/n=/r/nX/r/n*L=0.118x4=0.472M/r/nΩ/r/n相零阻抗/r/n:/r/nR/r/nL-PE/r/n=r/r/nL-PE/r/nL=0.039x4=0.156M/r/nΩ/r/nX/r/nL-PE/r/n=x/r/nL-PE/r/nL=0.264x4=1.056M/r/nΩ/r/n計(jì)算K-5點(diǎn)的三相和單相短路電流/r/n三相短路回路總阻抗：/r/nR/r/n∑/r/n=/r/nR/r/ns/r/n+/r/nR/r/nT/r/n+/r/nR/r/nWB/r/n=0.078+1.126+0.052=1.256M/r/nΩ/r/nX/r/n∑/r/n=/r/n/r/nX/r/ns/r/n+/r/n/r/nX/r/nT/r/n+/r/n/r/nX/r/nWB/r/n=0.780+7.597+0.472=8.849M/r/nΩ/r/n三相短路電流:/r/nI/r/n〔3〕/r/nk/r/n=Uc//r/nR/r/n∑/r/n2/r/n+X/r/n∑/r/n2/r/n=25.84KA/r/n短路電流沖擊系數(shù):/r/nK/r/np/r/n=1+e(-/r/n∏/r/nR/r/n∑/r/n/X/r/n∑/r/n)/r/n2/r/n=1.640/r/n三相短路沖擊電流：/r/ni/r/n〔3〕/r/np3/r/n=/r/nKpI/r/n〔3〕/r/nK/r/n=/r/n*1.640*25.84=59.92KA/r/n單相短路回路總相零阻抗：/r/nR=0.052+1.126+0.156=1.334M/r/nΩ/r/nX=0.520+7.597+1.056=9.173M/r/nΩ/r/n兩相短路電流：/r/nI/r/n〔2〕/r/nk/r/n2/r/n=0.866xI/r/n〔2〕/r/nk/r/n=0.866x25.84=22.38KA/r/n單相短路電流：/r/nI/r/n〔1〕/r/nk/r/n=U//r/nR/r/n2/r/n+X/r/n2/r/n=24.91KA/r/n計(jì)算K-7點(diǎn)的三相和單相短路電流/r/n每相阻抗:/r/n/r/nR/r/nwb/r/n=/r/nR/r/n*L=0.013x11.2=0.146M/r/nΩ/r/nX/r/nwb/r/n=/r/nX/r/n*L=0.118x11.2=1.322M/r/nΩ/r/n相零阻抗:/r/nR/r/nL-PE/r/n=r/r/nL-PE/r/nL=0.039x11.2=0.437M/r/nΩ/r/n/r/nX/r/nL-PE/r/n=x/r/nL-PE/r/nL=0.264x11.2=2.957M/r/nΩ/r/n三相短路回路總阻抗：/r/nR/r/n∑/r/n=/r/n/r/n1.256+0.146=1.402M/r/nΩ/r/nX/r/n∑/r/n=/r/n/r/n8.849+7.597+1.322=10.171M/r/nΩ/r/n三相短路電流:/r/nI/r/n〔3〕/r/nk/r/n=Uc//r/nR/r/n∑/r/n2/r/n+X/r/n∑/r/n2/r/n=22.49KA/r/n短路電流沖擊系數(shù):/r/nK/r/np/r/n=1+e(-/r/n∏/r/nR/r/n∑/r/n/X/r/n∑/r/n)/r/n2/r/n=1.649/r/n三相短路沖擊電流：/r/ni/r/n〔3〕/r/np3/r/n=/r/nKpI/r/n〔3〕/r/nK/r/n=/r/n*1.649*22.49=52.43KA/r/n單相短路回路總相零阻抗：/r/nR=1.334+0.437=1.771M/r/nΩ/r/nX=9.173+2.957=12.130M/r/nΩ/r/n兩相短路電流：/r/nI/r/n〔2〕/r/nk/r/n2/r/n=0.866xI/r/n〔2〕/r/nk/r/n=0.866x22.49=19.48KA/r/n單相短路電流：/r/nI/r/n〔1〕/r/nk/r/n=U//r/nR/r/n2/r/n+X/r/n2/r/n=18.84KA/r/n變壓器低壓側(cè)短路計(jì)算見表5-2。/r/n表5-2變壓器低壓短路計(jì)算/r/n變壓器T1低壓側(cè)短路計(jì)算/r/nU/r/nn=380V/r/n序號(hào)/r/n元件/r/n短路點(diǎn)/r/n運(yùn)行參數(shù)/r/nR/r/n/mΩ/r/nX/r/n/mΩ/r/nZ//r/nmΩ/r/nR/r/nL-PE/mΩ/r/nX/r/nL-PE/r/n//r/nmΩ/r/nZ/r/nL-PE/r/n//r/nmΩ/r/nI/r/nk3"/kA/r/nk/r/np/r/ni/r/np3/kA/r/nI/r/nk2/kA/r/nI/r/nk1E/kA/r/n1/r/nSA/r/nk-1/r/nS/r/nkmax/r/n/MVA/r/n204.00/r/n0.078/r/n0.780/r/n0.784/r/n0.052/r/n0.520/r/n2/r/nT1/r/nS/r/nrT/r/n/kVA/r/n△/r/nP/r/nk/r/n/kW/r/nU/r/nk/r/n％/r/n1250/r/n11/r/n6/r/n1.126/r/n7.597/r/n7.680/r/n1.126/r/n7.597/r/n3/r/n1/r/n＋/r/n2/r/nk-3/r/n1.204/r/n8.377/r/n8.463/r/n1.178/r/n8.117/r/n8.202/r/n27.29/r/n1.637/r/n63.15/r/n23.63/r/n28.16/r/n4/r/nT1WB1/r/nr/mΩ/m/r/nx/r/n/mΩ/m/r/nl//r/nm/r/n0.013/r/n0.118/r/n4/r/n0.052/r/n0.472/r/nr/r/nL-PE/r/n/mΩ/r/n/m/r/nx/r/nL-PE/r/n/mΩ/m/r/nl//r/nm/r/n0.039/r/n0.264/r/n4/r/n0.156/r/n1.056/r/n5/r/n3/r/n＋/r/n4/r/nk-5/r/n1.256/r/n8.849/r/n8.938/r/n1.334/r/n9.173/r/n9.270/r/n25.84/r/n1.640/r/n59.92/r/n22.38/r/n24.91/r/n6/r/nT1WB2/r/nr/mΩ/m/r/nx/r/n/mΩ/m/r/nl//r/nm/r/n0.013/r/n0.118/r/n11.2/r/n0.146/r/n1.322/r/nr/r/nL-PE/r/n/mΩ/r/n/m/r/nx/r/nL-PE/r/n/mΩ/m/r/nl//r/nm/r/n0.039/r/n0.264/r/n11.2/r/n0.437/r/n2.957/r/n7/r/n5+6/r/nk-7/r/n1.402/r/n10.171/r/n10.267/r/n1.771/r/n12.130/r/n12.259/r/n22.49/r/n1.649/r/n52.43/r/n19.48/r/n18.84/r/n5.2.2低壓配電線路短路電流計(jì)算/r/n共對(duì)四組配電干線進(jìn)行了低壓短路計(jì)算，分別是2層商店照明〔W9〕、4~7層照明〔W13〕、五層排煙風(fēng)機(jī)〔W25〕、噴淋泵〔W88〕。短路計(jì)算見表5-3~表5-6。/r/n表5-3配電干線/r/nW9〔AA4柜配出〕低壓短路計(jì)算/r/n變壓器T1低壓側(cè)配電干線W9〔AA4柜配出〕短路計(jì)算/r/nU/r/nn=380V/r/n序號(hào)/r/n元件/r/n短路點(diǎn)/r/n運(yùn)行參數(shù)/r/nR/r/n/mΩ/r/nX/r/n/mΩ/r/nZ//r/nmΩ/r/nR/r/nL-PE/mΩ/r/nX/r/nL-PE/r/n//r/nmΩ/r/nZ/r/nL-PE/r/n//r/nmΩ/r/nI/r/nk3"/kA/r/nk/r/np/r/ni/r/np3/kA/r/nI/r/nk2/kA/r/nI/r/nk1E/kA/r/n1/r/nSA/r/nk-1/r/nS/r/nkmax/r/n/MVA/r/n204.00/r/n0.078/r/n0.780/r/n0.784/r/n0.052/r/n0.520/r/n2/r/nT1/r/nS/r/nrT/r/n/kVA/r/n△/r/nP/r/nk/r/n/kW/r/nU/r/nk/r/n％/r/n1250/r/n11/r/n6/r/n1.126/r/n7.597/r/n7.680/r/n1.126/r/n7.597/r/n3/r/nT1WB1/r/nr/mΩ/m/r/nx/r/n/mΩ/m/r/nl//r/nm/r/n0.013/r/n0.118/r/n9.6/r/n0./r/n125/r/n1.133/r/nr/r/nL-PE/r/n/mΩ/r/n/m/r/nx/r/nL-PE/r/n/mΩ/m/r/nl//r/nm/r/n0.039/r/n0.264/r/n9.6/r/n0./r/n374/r/n2.534/r/n4/r/n1+2+3/r/nAA4/r/n1./r/n329/r/n9.510/r/n9.603/r/n1.553/r/n10.653/r/n10.764/r/n2/r/n4.05/r/n1.64/r/n5/r/n5/r/n5.93/r/n20.83/r/n21.46/r/n5/r/nW9/r/nr/mΩ/m/r/nx/r/n/mΩ/m/r/nl//r/nm/r/n0./r/n31/r/n0./r/n078/r/n30.8/r/n0./r/n650/r/n5.900/r/nr/r/nL-PE/r/n/mΩ/r/n/m/r/nx/r/nL-PE/r/n/mΩ/m/r/nl//r/nm/r/n1.128/r/n0./r/n191/r/n30.8/r/n34.742/r/n5.883/r/n6/r/n4+5/r/n2AL1/r/n10.877/r/n11.913/r/n16.131/r/n36.295/r/n16.534/r/n39.884/r/n14.32/r/n1./r/n057/r/n21.39/r/n12.40/r/n5.79/r/n表5-4配電干線/r/nW13〔AA2柜配出〕低壓短路計(jì)算/r/n變壓器T1低壓側(cè)配電干線W13〔AA2柜配出〕短路計(jì)算/r/nU/r/nn=380V/r/n序號(hào)/r/n元件/r/n短路點(diǎn)/r/n運(yùn)行參數(shù)/r/nR/r/n/mΩ/r/nX/r/n/mΩ/r/nZ//r/nmΩ/r/nR/r/nL-PE/mΩ/r/nX/r/nL-PE/r/n//r/nmΩ/r/nZ/r/nL-PE/r/n//r/nmΩ/r/nI/r/nk3"/kA/r/nk/r/np/r/ni/r/np3/kA/r/nI/r/nk2/kA/r/nI/r/nk1E/kA/r/n1/r/nSA/r/nk-1/r/nS/r/nkmax/r/n/MVA/r/n204.00/r/n0.078/r/n0.780/r/n0.784/r/n0.052/r/n0.520/r/n2/r/nT1/r/nS/r/nrT/r/n/kVA/r/n△/r/nP/r/nk/r/n/kW/r/nU/r/nk/r/n％/r/n1250/r/n11/r/n6/r/n1.126/r/n7.597/r/n7.680/r/n1.126/r/n7.597/r/n3/r/nT1WB1/r/nr/mΩ/m/r/nx/r/n/mΩ/m/r/nl//r/nm/r/n0.013/r/n0.118/r/n8.8/r/n0./r/n114/r/n1.038/r/nr/r/nL-PE/r/n/mΩ/r/n/m/r/nx/r/nL-PE/r/n/mΩ/m/r/nl//r/nm/r/n0.039/r/n0.264/r/n8.8/r/n0./r/n343/r/n2.323/r/n4/r/n1+2+3/r/nAA11/r/n1./r/n319/r/n9.416/r/n9.508/r/n1.522/r/n10.440/r/n10.551/r/n2/r/n4.29/r/n1.64/r/n4/r/n5/r/n6.47/r/n21.04/r/n21.89/r/n5/r/nW13/r/nr/mΩ/m/r/nx/r/n/mΩ/m/r/nl//r/nm/r/n0.013/r/n0.118/r/n50/r/n0./r/n650/r/n5.900/r/nr/r/nL-PE/r/n/mΩ/r/n/m/r/nx/r/nL-PE/r/n/mΩ/m/r/nl//r/nm/r/n0.039/r/n0.264/r/n50/r/n1.950/r/n13.20/r/n6/r/n4+5/r/n7AL/r/n1./r/n969/r/n15.316/r/