陕西某110KV变电站户外电动接地及照明施工图

1、,电 缆 数 据 表 ,说明：,1、电缆截面选择的计算及校验依据电力工程电缆设计规范GB50217-94。,2、 最大工作电流作用下的缆芯温度，不得超过按电缆使用寿命确定的允许值。,3、应考虑环境条件、敷设条件对电缆长期允许载流量的影响。,:可修改内容,4、按照持续工作电流及热稳定确定允许最小截面.,5、连接回路在最大工作电流作用下的电压损失，不得超过该回路的允许值。,6、电缆持续工作电流下的最小截面，应按最严酷地段的敷设条件选取载流量校正系数，并应满足下式的要求：,IyxkIj 式中：Iyx：电缆允许持续载流量（A）；Ij:持续工作电流（A）;k:电缆在不同环境温度时电缆载流量综合校正系数,

2、0.7,/1.25 其中含环境温度系数、土壤热阻系数，并列系数,7、正常工作电流及启动条件下的电压损失校验:,正常工作电流下的电压损失 5%,启动时的电压损失 15%,(阻抗法计算）,（没有考虑单相短路的电缆选择范围）,8、系统情况及计算结果如下：,保护管直径(mm),DN25,DN25,DN25,DN32,DN40,DN40,DN50,DN50,DN70,DN70,DN70,DN80,DN80,DN100,DN70,DN70,DN80,电缆外径(mm),15,15,16.1,17.8,21.5,24.8,27.2,30.4,35.3,38.7,42.2,47.5,47.5,52,38.7,4

3、2.2,47.5,负荷参数,电缆最大长度（米）,电缆参数,9.45,5.482,3.655,2.193,1.371,0.895,0.639,0.447,0.319,0.235,0.188,0.151,0.123,0.0987,0.235,0.188,0.151,电阻（欧/千米）,0.0932,0.093,0.093,0.087,0.082,0.075,0.072,0.072,0.069,0.069,0.069,0.07,0.07,0.0703,0.069,0.069,0.07,电抗（欧/千米）,Pe,COS,Ie,kq,31,40,51,67,89,121,149,185,225,275,34

4、1,359,435,505,275,341,359,额定电流（安）,系统参数,17.4 ,22.4 ,28.6 ,37.5 ,49.8 ,67.8 ,83.4 ,103.6 ,126.0 ,154.0 ,191.0 ,201.0 ,243.6 ,282.8 ,154.0 ,191.0 ,201.0 ,递减后电流（安）,2.5,4,6,10,16,25,35,50,70,95,120,150,185,240,95,120,150,导体尺寸（mm2）,系统容量,200,MVA,3C,3C,3C,3C,3C,3C,3C,3C,3C,3C,3C,3C,3C,3C,3C,3C,3C,电缆芯数,系统电压,

5、0.4,kV,1,1,1,1,1,1,1,1,1,1,1,1,1,1,2,2,2,电缆根数,变压器容量,1000,kVA,0.75,0.84,1.8,7.0,0.0,762.9,1309.1,1952.9,-,-,-,-,-,-,-,-,-,-,-,-,-,-,短路阻抗,4.5,%,1.1,0.86,2.5,7.0,0.0,536.8,921.5,1375.2,-,-,-,-,-,-,-,-,-,-,-,-,-,-,R/X 比,0.227921153,1.5,0.85,3.4,7.0,0.0,399.2,685.2,1022.4,1689.4,-,-,-,-,-,-,-,-,-,-,-,-,-

6、,2.2,0.86,4.7,7.0,0.0,285.5,490.1,731.5,1209.1,1911.7,-,-,-,-,-,-,-,-,-,-,-,-,3,0.87,6.4,7.0,0.0,207.3,356.0,531.4,878.6,1389.9,-,-,-,-,-,-,-,-,-,-,-,-,4,0.87,8.2,7.0,0.0,161.8,277.8,414.7,685.8,1084.8,1640.2,-,-,-,-,-,-,-,-,-,-,-,5.5,0.88,11.1,7.0,0.0,118.2,203.0,303.1,501.4,793.5,1200.5,1656.8,-,-

7、,-,-,-,-,-,-,-,-,7.5,0.88,15,7.0,0.0,87.5,150.2,224.3,371.0,587.2,888.4,1226.0,1710.5,-,-,-,-,-,-,-,-,-,11,0.88,21.8,7.0,0.0,103.4,154.3,255.3,404.0,611.3,843.6,1176.9,1605.2,-,-,-,-,-,-,-,-,15,0.88,29.4,7.0,0.0,189.3,299.6,453.3,625.5,872.7,1190.2,1557.5,1882.5,-,-,-,-,-,-,18.5,0.89,35.5,7.0,0.0,15

8、5.2,245.7,372.0,513.7,717.5,979.8,1284.3,1554.5,1858.1,-,-,-,-,-,22,0.89,42.2,7.0,0.0,206.7,312.9,432.1,603.6,824.3,1080.4,1307.7,1563.1,1838.6,-,-,-,-,30,0.89,56.9,7.0,0.0,232.1,320.5,447.7,611.3,801.3,969.9,1159.3,1363.6,1608.0,1602.5,1939.8,-,37,0.89,69.8,7.0,0.0,261.3,364.9,498.3,653.2,790.6,945

9、.0,1111.6,1310.8,1306.4,1581.3,1890.0,45,0.89,83.9,7.0,0.0,303.6,414.6,543.4,657.8,786.2,924.8,1090.5,1086.8,1315.5,1572.4,55,0.89,102.7,7.0,0.0,248.0,338.7,443.9,537.4,642.3,755.5,890.9,887.9,1074.7,1284.6,75,0.89,140.1,7.0,0.0,325.4,393.9,470.8,553.8,653.1,650.9,787.8,941.6,90,0.89,167,7.0,0.0,330.5,395.0,464.6,547.9,546.0,660.9,790.0,110,0.89,203,7.0,0.0,382.2,450.7,449.2,543.7,649.9,132,0.89,