电缆相关计算程序汇总1250kVA短路计算

电气计算高压侧系统阻抗（归算到低压侧）Zs高压侧基准电压UjKV10正序阻抗Zs=1.592低压侧基准电压UnKV0.38正序电阻Rs=0.158系统短路容量SsMVA100正序电抗Xs=1.584电压系数C1.05相保电阻Rsp=0.106相保电抗Xsp=1.056变压器阻抗Zt变压器额定容量SrtKVA1250正序阻抗Zt=7.642变压器短路损耗PrKW9.69正序电阻Rt=0.987变压器阻抗电压Uk%6正序电抗Xt=7.578变压器接线方式Dy11相保电阻Rtp=0.987相保电抗Xtp=7.047低压母线阻抗ZmTMY-4(80X6)母线长度L米5米单位正序电阻Rm=0.0422毫欧正序电阻Rm=0.211单位正序电抗Xm=0.1965毫欧正序电抗Xm=0.9825单位相保电阻Rmp=0.0843毫欧相保电阻Rmp=0.4215单位相保电抗Xmp=0.397毫欧相保电抗Xmp=1.985线路L1阻抗TMY-4(80X6)线路长度L米2.5米单位正序电阻R1=0.0422毫欧正序电阻R1=0.1055单位正序电抗X1=0.1965毫欧正序电抗X1=0.49125单位相保电阻R1p=0.0843毫欧相保电阻R1p=0.21075单位相保电抗X1p=0.397毫欧相保电抗X1p=0.9925线路L2阻抗TMY-4(80X6)线路长度L米5米单位正序电阻R2=0.0422毫欧正序电阻R2=0.211单位正序电抗X2=0.1965毫欧正序电抗X2=0.9825单位相保电阻R2p=0.0843毫欧相保电阻R2p=0.4215单位相保电抗X2p=0.397毫欧相保电抗X2p=1.985线路L3阻抗VV22-3X120+2X70-G100线路长度L米150米单位正序电阻R3=0.146毫欧正序电阻R3=21.9单位正序电抗X3=0.076毫欧正序电抗X3=11.4单位相保电阻R3p=0.596毫欧相保电阻R3p=89.4单位相保电抗X3p=0.161毫欧相保电抗X3p=24.15全部7页的第1页电气计算线路L4阻抗VV22-3X120+2X70-G100线路长度L米150米单位正序电阻R4=0.146毫欧正序电阻R4=21.9单位正序电抗X4=0.076毫欧正序电抗X4=11.4单位相保电阻R4p=0.596毫欧相保电阻R4p=89.4单位相保电抗X4p=0.161毫欧相保电抗X4p=24.15全部7页的第2页电气计算毫欧毫欧毫欧毫欧毫欧毫欧毫欧毫欧毫欧毫欧毫欧毫欧毫欧毫欧毫欧毫欧毫欧毫欧毫欧毫欧毫欧毫欧毫欧毫欧毫欧毫欧全部7页的第3页电气计算毫欧毫欧毫欧毫欧全部7页的第4页最小运行方式Smin=100MVAQ1、Q3合闸、Q2分闸三相短路序电路短元件阻抗短路点阻抗短路单相接地比值冲击冲击路毫欧电流故障电流系数电流号元件点单位实际正负序相保KAKAKARXRpXpRXRpXpZZpI''IdX/RKchich1系统S0.1581.5840.1061.0562变压器T0.9877.5780.9877.0473母线L10.0420.1970.0840.3970.2110.9830.4221.98541+2+3F11.35710.1441.51410.08810.23410.20122.50921.5077.4771.67653.3475母线L30.0420.1970.0840.3970.1060.4910.2110.99364+5F31.46210.6351.72511.08110.73511.21421.45919.5647.2741.66950.6357母线L20.0420.1970.0840.3970.2110.9830.4221.98586+7F21.67311.6182.14713.06611.73813.24119.62616.5706.9431.65645.9629线路L50.1460.0760.5960.16121.90011.40089.40024.150108+9F523.57323.01891.54737.21632.94798.8226.9922.2200.9761.06510.53311线路L40.1460.0760.5960.16121.90011.40089.40024.150124+11F423.25721.54490.91434.23831.70297.1487.2672.2580.9261.05810.876短路全电流最大有效值KAIch31.14329.53626.7757.0227.291Sheet4低压母线单位长度阻抗第7页