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1、车站工程施工现场临时用电进行负荷计算施工现场尖锋期用电量统计表序号机械设备名称型 号数 量功 率1塔式起重机QTZ-63J1145.0KW2混凝土搅拌机强制式JD-500型3327KW3砂浆搅拌机HJI200885.5KW4插入式振动器ZX5010101.1KW5砂轮切割机GB-400223KW6闪光对焊机UN1-15022150KVA7电渣压力焊机MH-362240KVA8交流弧焊机BX6-3152226KVA9钢筋弯曲机GW6-40B222.2KW10钢筋切断机GW6-40B222.2KW11钢筋套丝机XWD5-23224KW12钢筋调直机GT12224KW13木工圆盘锯225.5KW14
2、木工刨木机222.2KW15潜水泵5010101.1KW确定用电负荷(需要系数法)Kx:用电设备组的需要系数Cos:铭牌额定功率因数Pjs:用电设备组的有功计算负荷Qjs:用电设备组的无功计算负荷Pe:用电设备组的额定功率1、塔式起重机QTZ63,数量n=1Kx=0.50,cos=0.80,tg=0.75,Pe=451=45KWPjs= KxPe=0.5045=22.5KWQjs= Pjstg=22.50.75=16.88Kvar2、混凝土搅拌机强制式JD-500型,数量n=3Kx=0.70,cos=0.80,tg=0.75,Pe=273=81KWPjs= KxPe=0.7081=56.7KW
3、Qjs= Pjstg=37.80.75=42.525Kvar3、砂浆搅拌机HJI200,数量n=8Kx=0.70,cos=0.80,tg=0.75,Pe=5.58=44KWPjs= KxPe=0.7044=30.8KWQjs= Pjstg=30.80.75=23.1Kvar4、插入式振动器ZX50,数量n=10Kx=0.30,cos=0.80,tg=0.75,Pe=1.1010=11KWPjs= KxPe=0.3011=3.3KWQjs= Pjstg=3.30.75=2.475Kvar5、砂轮切割机GB-400,数量n=2Kx=0.70,cos=0.80,tg=0.75,Pe=32=6KWPj
4、s= KxPe=0.706=4.2KWQjs= Pjstg=4.20.75=3.15Kvar6、闪光对焊机UN1-150,数量n=2Kx=0.30,cos=1,tg=0.00,Pe=15012=300KW Pjs= KxPe=0.30300=90KWQjs= Pjstg=900.00=0.00Kvar7、电渣压力焊机MH-36,数量n=2Kx=0.30,cos=1,tg=0.00,Pe=4012=80KWPjs= KxPe=0.3080=24KWQjs= Pjstg=240.00=0.00Kvar8、交流弧焊机BX6-315,数量n=2Kx=0.30,cos=1,tg=0.00,Pe=2612
5、=52KWPjs= KxPe=0.3052=15.6KWQjs= Pjstg=15.60.00=0.00Kvar9、钢筋弯曲机GW6-40B,数量n=2Kx=0.70,cos=0.80,tg=0.75,Pe=2.22=4.4KWPjs= KxPe=0.704.4=3.08KW Qjs= Pjstg=3.080.75=2.31Kvar10、钢筋切断机GW6-40B,数量n=2Kx=0.70,cos=0.80,tg=0.75,Pe=2.22=4.4KWPjs= KxPe=0.704.4=3.08KW Qjs= Pjstg=3.080.75=2.31Kvar11、钢筋套丝机XWT5-23,数量n=2
6、Kx=0.70,cos=0.80,tg=0.75,Pe=42=8KWPjs= KxPe=0.708=5.6KWQjs= Pjstg=5.60.75=4.2Kvar12、钢筋调直机CT4-8,数量n=2Kx=0.70,cos=0.80,tg=0.75,Pe=42=8KWPjs= KxPe=0.708=5.6KWQjs= Pjstg=5.60.75=4.2Kvar13、木工圆盘锯 ,数量n=2Kx=0.70,cos=0.80,tg=0.75,Pe=5.502=11.00KWPjs= KxPe=0.7011.00=7.70KWQjs= Pjstg=7.700.75=5.78Kvar14、木工刨木机,
7、数量n=2Kx=0.70,cos=0.80,tg=0.75,Pe=2.22=4.4KWPjs= KxPe=0.704.4=3.08KWQjs= Pjstg=3.080.75=2.31Kvar15、潜水泵,数量n=10Kx=0.70,cos=0.80,tg=0.75,Pe=1.110=11KWPjs= KxPe=0.7011=7.7KWQjs= Pjstg=7.70.75=5.78Kvar总的计算负荷计算，总箱同期系数Kx=0.9总的有功功率Pjs= KxPjs =0.9(22.5+56.7+30.8+3.3+4.2+90+60+24+15.6+3.08+3.08+5.6+5.6+7.7+3.08+7.7)=305.874KW总的无功功率Qjs= KxQjs=0.9(16.88+42.525+23.1+2.475+3.15+0.0+0.0+0.0+0.0+2.31+4.2+4.2+5.78+2.31+5.78)=101.439KVA总的视在功率Sjs = Pjs2+Qjs2 = 305.872+101.4392 =322.252KVA为了简化计算照明用电取施工用电10%，则：Sjs =1.053322.252=338.365KVA总的计算电流Ijs=514A
