3.2负荷计算:3.2.1 砼搅拌设备类此类设备由于工程工序所需，16台混凝土输送泵，平板振动器及插入式振动器按同时使用考虑。

3.2.1.1 HTB-80混凝土输送泵单机功率112KW 共计10台=0.8 cosφ=0.8 tgθ=0.75查表可得KXPjS=Kx.Pe=112×0.8=89.6 KWQjS=PjS.tgθ=89.6×0.75=67.2 KvarIjS=Pjs/√3.Ue.cosφ=170.2 A3.2.1.2 PZ-50平板振动器单机功率1.5KW 共计4台查表可得 K=0.8 cosφ=0.8 tgθ=0.75XPjS=Kx.Pe=0.8×1.5=1.2 KWQjs=Pjs.tgθ=1.2×0.75=0.9 KvarIjs=Pjs/√3.Ue.cosφ=2.3 A3.2.1.3 Zx-50插入式振动器单机功率1.1KW 共计21台=0.8 cosφ=0.8 tgθ=0.75查表可得 KXPjs=Kx.Pe=0.8×1.1=0.88 KWQjs=Pjs.tgθ=0.88×0.75=0.66 KvarIjs=Pjs/√3.Ue.cosφ=1.7 A3.2.1.4砼搅拌设备类技术参数合计：Pjs=89.6×10+1.2×4+0.88×21=919.28 KWQjs=67.2×10+0.9×4+0.66×21=689.46 KvarIjS= Sjs/√3.Ue=1149.1/1.732×0.38=1745.93 A3.2.2 钢筋加工类3.2.2.1钢筋弯曲机单机功率Pe=3 KW 共计10台=0.7 cosφ=0.7 tgθ=1.02查表可得KXQjs= Pjs.tgθ=2.1×1.02=2.14 KvarIjs=Pjs/√3.Ue.cosφ=4.56 A3.2.2.2钢筋切断机单机功率Pe=4KW 共计10台=0.7 cosφ=0.7 tgθ=1.02查表可得KXPjs=Kx.Pe=0.7×4=2.8 KWQjs=Pjs.tgθ=2.8×1.02=2.86 KvarIjs=Pjs/√3.Ue.cosφ=6.07 A3.2.2.3 钢筋调直机单机容量Pe=2.5KW 共计10台查表可得K=0.7 cosφ=0.7 tgθ=1.02XPjs=Kx.Pe=0.7×2.5=1.75 KWQjs=Pjs.tgθ=1.75×1.02=1.79 KvarIjs=Pjs/√3.Ue.cosφ=3.80A3.2.2.4 直螺纹套丝机单机功率4KW 共计5台=0.7 cosφ=0.7 tgθ=1.02查表可得KXPjs=Kx.Pe=0.7×4=2.8 KWQjs=Pjs.tgθ=2.8×1.02=2.86 KvarIjs=Pjs/√3.Ue.cosφ=6.07 A3.2.2.5 对焊机单机容量Sr=100KVA 共计10台查表可得Kx=0.5 cosφ=0.5 tgθ=1.73 Jc=0.65Pe=Sr√Jc cosφ=100×√0.65×0.5=40.3KWPjs=Kx*Pe= 40.3×0.5=20.15KWQjs=Pjs×tgθ= 20.15×1.73=34.86KvarIjs=Pjs/√3 Ue cosφ= 20.15/√3×0.38×0.5= 61.23A3.2.2.6钢筋加工设备组技术参数合计：Pjs= 2.1*10+10*2.8+1.75*10+2.8*5+20.15*10=282KWQjs= 2.14*10+2.86*10+1.79*10+2.86*5+34.86*10=431.2Kvar 3.2.3 砂浆搅拌组3.2.3.1 CL200砂浆搅拌机单机功率3.0KW 共计10台=0.7 cosφ=0.82 tgθ=0.7查表可得KXQjs=Pjs.tgθ=2.1×0.7=1.47 Kvar3.2.3.2砂浆搅拌组技术参数合计：Pjs= 2.1*10=21KWQjs= 1.47*10=14.7Kvar3.2.4 起重设备类3.2.4.1 QTZ63塔吊单机功率40.1KW 共计12台=0.3 cosφ=0.7 tgθ=1.02 Jc=0.15查表可得KXPe=2Pe′√Jc =2×40.1×√0.15=31.06KWPjs=Kx*Pe= 31.06×0.3=9.32KWQjs=Pjs×tgθ= 9.32×1.02=9.51Kvar3.2.4.2 QTZ63塔吊单机功率50KW 共计5台查表可得K=0.3 cosφ=0.7 tgθ=1.02 Jc=0.15XPe=2Pe′√Jc =2×50×√0.15=38.73KWPjs=Kx*Pe= 38.73×0.3=11.62KWQjs=Pjs×tgθ= 11.62×1.02=11.85Kvar3.2.4.3 Sc200/200施工电梯单机功率38KW 共计17台=0.3 cosφ=0.7 tgθ=1.02查表可得KXPjs=Kx*Pe= 38×0.3=11.4KWQjs=Pjs×tgθ= 11.4×1.02=11.63Kvar3.2.4.3 SZ150-1物料提升机单机功率10KW 共计3台=0.3 cosφ=0.7 tgθ=1.02查表可得KXPjs=Kx*Pe= 10×0.3=3KWQjs=Pjs×tgθ= 3×1.02=3.06Kvar3.2.4.4起重设备类技术参数合计：Pjs=9.32*12+11.62×5+17*11.4+3*3=372.74KWQjs= 9.51*12+11.85×5+17*11.63+3.06*3=380.26KvarIjs= 20.23*22+16*24.73+6.51*3=860.27A3.2.5 安装加工设备类3.2.5.1 ½～4″电动套丝机单机功率2.8 KW 共计6台查表可得K=0.7 cosφ=0.75 tgθ=0.88XPjs=Kx*Pe= 2.8×0.75=2.1KWQjs=Pjs×tgθ= 2.1×0.88=1.85KvarIjs=Pjs/√3 Ue cosφ= 2.1/√3×0.38×0.75= 4.25A3.2.5.2 TWG-Ⅱ滚槽机单机功率0.75KW 共计6台=0.7 cosφ=0.75 tgθ=0.88查表可得KXPjs=Kx*Pe= 0.75×0.75=0.56KWQjs=Pjs×tgθ= 0.56×0.88=0.49KvarIjs=Pjs/√3 Ue cosφ= 0.56/√3×0.38×0.75= 1.13A3.2.5.3 TWQ-Ⅱ切管机单机功率0.75KW 共计6台查表可得K=0.7 cosφ=0.75 tgθ=0.88XPjs=Kx*Pe= 0.75×0.75=0.56KWQjs=Pjs×tgθ= 0.56×0.88=0.49KvarIjs=Pjs/√3 Ue cosφ= 0.56/√3×0.38×0.75= 1.13A3.2.5.4 TWK-Ⅲ开孔机单机功率0.55KW 共计6台查表可得K=0.7 cosφ=0.75 tgθ=0.88XPjs=Kx*Pe= 0.55×0.75=0.41KWQjs=Pjs×tgθ= 0.41×0.88=0.36KvarIjs=Pjs/√3 Ue cosφ= 0.41/√3×0.38×0.75= 0.83A3.2.5.5 ZQ4116台钻单机功率0.37KW 共计6台=0.7 cosφ=0.75 tgθ=0.88查表可得KXPjs=Kx*Pe= 0.37×0.75=0.28KWQjs=Pjs×tgθ= 0.28×0.88=0.25KvarIjs=Pjs/√3 Ue cosφ= 0.28/√3×0.38×0.75= 0.57A3.2.5.6 ￠400砂轮切割机单机功率0.25KW 共计6台=0.7 cosφ=0.75 tgθ=0.88查表可得KXPjs=Kx*Pe= 0.25×0.75=0.19KWQjs=Pjs×tgθ= 0.19×0.88=0.17KvarIjs=Pjs/√3 Ue cosφ= 0.19/√3×0.38×0.75= 0.38A3.2.5.7安装加工类技术参数合计：Pjs=（2.1+0.56+0.56+0.41+0.28+0.19）*7=28.7KWQjs= （1.85+0.49+0.49+0.36+0.25+0.17）*7=25.27KvarIjs=（4.25+1.13+1.13+0.83+0.57+0.38）*6=49.74A3.2.6 木加工机具类3.2.6.1 MJ104圆盘锯等单机功率15 KW 共计10台=0.7 cosφ=0.75 tgθ=0.88查表可得KXPjs=Kx*Pe= 15×0.75=11.25KWQjs=Pjs×tgθ= 11.25×0.88=9.9KvarIjs=Pjs/√3 Ue cosφ= 11.25/√3×0.38×0.75= 17.1A3.2.6.2木加工机具类技术参数合计：Pjs=11.25*10=112.5KWQjs= 9.9*10=99KvarIjs=17.1*12=205.2A3.2.7 交流焊机类3.2.7.1 BX2-500交流电焊机单机容量50KVA 共计7台查表可得Kx=0.5 cosφ=0.5 tgθ=1.73 Jc=0.65Pe=Sr√Jc cosφ=50×√0.65×0.5=20.16KWPjs=Kx*Pe= 20.16×0.5=10.08KWQjs=Pjs×tgθ=10.08×1.73=17.44KvarIjs=Pjs/√3 Ue cosφ= 10.08/√3×0.38×0.5= 30.64A3.2.7.2 BX2-300交流电焊机单机容量30KVA 共计7台查表可得Kx=0.5 cosφ=0.5 tgθ=1.73 Jc=0.65Pe=Sr√Jc cosφ=30×√0.65×0.5=12.09KWPjs=Kx*Pe= 12.09×0.5=6.05KWQjs=Pjs×tgθ=6.05×1.73=10.47KvarIjs=Pjs/√3 Ue cosφ= 6.05/√3×0.38×0.5= 18.39A3.2.7.3交流电焊机类技术参数合计：Pjs=（10.08+6.05）*7=112.91KWQjs=（17.44+10.47）*7=195.37KvarIjs=（30.64+18.39）*6=294.18A3.2.8 其他类3.2.8.1 HZD250打夯机单机功率4 KW 共计14台=0.55 cosφ=0.8 tgθ=0.75查表可得KXPjs=Kx*Pe= 0.55×4=2.2KWQjs=Pjs×tgθ= 2.2×0.75=1.65KvarIjs=Pjs/√3 Ue cosφ= 2.2/√3×0.38×0.8=4.18A3.2.8.2 JQB15-6潜水泵单机功率2.2KW 共计80台=0.55 cosφ=0.8 tgθ=0.75查表可得KXPjs=Kx*Pe= 0.55×2.2=1.21KWQjs=Pjs×tgθ= 1.21×0.75=0.91KvarIjs=Pjs/√3 Ue cosφ= 1.21/√3×0.38×0.8=2.30A3.2.8.3 高压水泵单机功率18.5KW 共计17台=0.55 cosφ=0.8 tgθ=0.75查表可得KXPjs=Kx*Pe= 0.55×18.5=10.18KWQjs=Pjs×tgθ= 10.18×0.75=7.64KvarIjs=Pjs/√3 Ue cosφ= 10.18/√3×0.38×0.8=19.33A3.2.8.4其他类技术参数合计：Pjs=2.2*14+1.21*80+10.18*17=300.66KWQjs=1.65*14+0.91*80+7.64*17=255.78KvarIjs=4.18*10+2.30*40+19.33*16=443.08A3.2.9照明组：3.2.9.1 镝灯单机功率3.5 KW 共计18台=1.0 cosφ=1.0 tgθ=0查表可得KXPjs=Kx*Pe= 1.0×3.5=3.5KWQjs=Pjs×tgθ= 3.5×0=0KvarIjs=Pjs/√3 Ue cosφ= 3.5/√3×0.38×0.8=5.32A3.2.9.2 碘钨灯单机功率1KW 共计20台=1.0 cosφ=1.0 tgθ=0查表可得KXPjs=Kx*Pe= 1.0×1=1KWQjs=Pjs×tgθ= 1×0=0KvarIjs=Pjs/√3 Ue cosφ= 1/√3×0.38×0.8=1.90A3.2.9.3照明类技术参数合计：Pjs=2149.79×10%=214.98KWQjs=0=0Kvar3.2.9总设备容量及计算负荷∑Pjs=(919.28+282+21+372.74+28.7+112.5+112.91+300.66+214.98)=2364.77KW∑Qjs=(689.46+431.2+14.7+380.26+25.27+99+195.37+255.78)=2090.54 Kvar各设备组的同期使用系数Kt取0.6则：Pjs=0.6×2364.77 KW=1418.9KWQjs=0.6×2090.54 Kvar=1254.3KvarSjs=√Pjs²+ Qjs²=√1418.9²+ 1254.3²=1893.8KVA6）变压器容量的确定考虑变压器的损耗，变压器容量Se应稍大于总视在功率Sjs。