施工现场临时用水用电方案

gφ=0.48Pjs=0.9×7×1=6.3kWQjs=Pjs×tgφ=6.3×0.48=3.05kvar(9)、灰浆搅拌机Kx=0.5,Cosφ=0.55,tgφ=1.52Pjs=0.5×3=1.5kWQjs=Pjs×tgφ=1.5×1.52=2.28kvar(10)、自落式混凝土搅拌机Kx=0.75,Cosφ=0.85,tgφ=0.62Pjs=0.75×7.5=5.625kWQjs=Pjs×tgφ=5.62×0.62=3.49kvar(11)、平板式振动器Kx=0.3,Cosφ=0.7,tgφ=1.02Pjs=0.3×0.5=0.15kWQjs=Pjs×tgφ=0.15×1.02=0.15kvar(12)、塔式起重机Kx=0.7,Cosφ=0.65,tgφ=1.17将Jc=40%统一换算到Jc1=25%的额定容量Pn=40kWPe=n×(Jc/Jc1)1/2×Pn=1×(0.4/0.25)1/2×40=50.6kWPjs=Kx×Pe=0.7×50.6=35.42kWQjs=Pjs×tgφ=35.42×1.17=41.41kvar(13)、混凝土输送泵Kx=0.3,Cosφ=0.7,tgφ=1.02Pjs=0.3×50=15kWQjs=Pjs×tgφ=15×1.02=15.3kvar(14)、施工电梯Kx=0.3,Cosφ=0.6,tgφ=1.33Pjs=0.3×11=3.3kWQjs=Pjs×tgφ=3.3×1.33=4.4kvar(15)、钢筋弯曲机Kx=0.65,Cosφ=0.7,tgφ=1.02Pjs=0.65×3=1.95kWQjs=Pjs×tgφ=1.95×1.02=1.99kvar(16)、钢筋调直机Kx=0.65,Cosφ=0.7,tgφ=1.02Pjs=0.65×4=2.6kWQjs=Pjs×tgφ=2.6×1.02=2.65kvar(17)、钢筋切断机