陜西某110KV變電站戶外電動接地及照明施工圖

1、,電 纜 數(shù) 據(jù) 表 ,說明：,1、電纜截面選擇的計算及校驗依據(jù)電力工程電纜設(shè)計規(guī)范GB50217-94。,2、 最大工作電流作用下的纜芯溫度，不得超過按電纜使用壽命確定的允許值。,3、應(yīng)考慮環(huán)境條件、敷設(shè)條件對電纜長期允許載流量的影響。,:可修改內(nèi)容,4、按照持續(xù)工作電流及熱穩(wěn)定確定允許最小截面.,5、連接回路在最大工作電流作用下的電壓損失，不得超過該回路的允許值。,6、電纜持續(xù)工作電流下的最小截面，應(yīng)按最嚴酷地段的敷設(shè)條件選取載流量校正系數(shù)，并應(yīng)滿足下式的要求：,IyxkIj 式中：Iyx：電纜允許持續(xù)載流量（A）；Ij:持續(xù)工作電流（A）;k:電纜在不同環(huán)境溫度時電纜載流量綜合校正系數(shù),

2、0.7,/1.25 其中含環(huán)境溫度系數(shù)、土壤熱阻系數(shù)，并列系數(shù),7、正常工作電流及啟動條件下的電壓損失校驗:,正常工作電流下的電壓損失 5%,啟動時的電壓損失 15%,(阻抗法計算）,（沒有考慮單相短路的電纜選擇范圍）,8、系統(tǒng)情況及計算結(jié)果如下：,保護管直徑(mm),DN25,DN25,DN25,DN32,DN40,DN40,DN50,DN50,DN70,DN70,DN70,DN80,DN80,DN100,DN70,DN70,DN80,電纜外徑(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,負荷參數(shù),電纜最大長度（米）,電纜參數(shù),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,電阻（歐/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,電抗（歐/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,額定電流（安）,系統(tǒng)參數(shù),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 ,遞減后電流（安）,2.5,4,6,10,16,25,35,50,70,95,120,150,185,240,95,120,150,導(dǎo)體尺寸（mm2）,系統(tǒng)容量,200,MVA,3C,3C,3C,3C,3C,3C,3C,3C,3C,3C,3C,3C,3C,3C,3C,3C,3C,電纜芯數(shù),系統(tǒng)電壓,

5、0.4,kV,1,1,1,1,1,1,1,1,1,1,1,1,1,1,2,2,2,電纜根數(shù),變壓器容量,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,