电压降计算

电压降计算表一（需知功率和距离）电缆截面积电缆电阻电缆电抗x额定电压U额定功率Pjs无功功率Qjs视在功率功率因数cos电压损失4U距离L（ km）备注2Somm（9/km）（9/km）（kV）（kW）（Kvar）Sjs （kVA）9%250.7270.12370.385037.562.50.80.822.71350.5240.0330.385037.562.50.30.85.70500.3870.03050.385037.562.50.30.84.26700.2680.02920.385037.562.50.30.83.01950.1930.02730.385037.562.50.30.82.221200.1530.02670.38118.2513.751.30.81.71电缆电阻r（Ω/km）是201500.1240.02670.385037.562.50.30.81.50C时候测定值1850.09910.0270.385037.562.50.30.81.242400.07540.02570.385037.562.50.30.80.983000.06010.02510.385037.562.50.30.80.824000.0470.0240.385037.562.50.30.80.685000.03660.0240.385037.562.50.30.80.576300.02830.0230.385037.562.50.30.80.47电压降计算表二（需知电流和距离）电缆截面积电缆电阻r电缆电抗x额定电压U电缆电流功率因数cos电压损失4U距离L（km）sin Φ备注2（9/km）（9/km）（kV）（A）D%mm2.57.410.13910.38100.30.80.68.2244.610.13310.38200.30.80.610.3063.080.12840.38320.650.90.43588989426.81101.830.12690.38500.30.80.610.53161.150.12310.38630.80.80.622.83250.7270.12370.38800.30.80.67.17350.5240.0330.381000.30.80.66.00500.3870.03050.381250.30.80.65.60700.2680.02920.381600.30.80.65.07电缆电阻r（2/km）是20℃时候测定值950.1930.02730.382000.30.80.64.671200.1530.02670.38220.30.80.60.421500.1240.02670.38970.30.80.61.531850.09910.0270.383600.30.80.64.702400.07540.02570.384000.30.80.64.143000.06010.02510.385000.30.80.64.324000.0470.0240.386300.30.80.64.485000.03660.0240.387000.30.80.64.186300.02830.0230.387000.30.80.63.49