短路电流计算
经分析选取短路d1,d2,d3,d4,d5,如图
d1点短路时,经过化简等效,得到下图的转移阻抗:
由此可得出计算电抗:
Sn150000.0710.5 Sj100S400/0.85'XjG23Xt'141n0.4760.904Sj100 Sn400/0.85''XjG45Xt1510.5112.04Sj100 Sn300/0.85''XjG1Xg10.0460.141Sj100'Xjs1X11
d2点短路时,经过化简等效,得到下图的转移阻抗:
由此可得出计算电抗:
Sn150000.1319.5 Sj100Sn400/0.85''XjG23Xt1410.1220.488Sj100 S400/0.85'XjG45Xt'151n0.030.14Sj100 Sn300/0.85''XjG1Xg10.5761.728Sj100'Xjs1X11
d3点短路时,经过化简等效,得到下图的转移阻抗:
由此可得出计算电抗:
Sn150000.12518.5 Sj100S400/0.85'XjG23Xt'141n0.030.12Sj100 Sn400/0.85''XjG45Xt1510.120.48Sj100 Sn300/0.85''XjG1Xg10.541.62Sj100'Xjs1X11
d4点短路时,经过化简等效,得到下图的转移阻抗:
由此可得出计算电抗:
'Xjs1X11XjG23XjG45Sn150000.023 Sj100S400/0.85'Xt'141n0.790.26Sj100 Sn400/0.85''Xt1510.20.8Sj100
''XjG1Xg1Sn300/0.850.0860.26 Sj100
d5点短路时,经过化简等效,得到下图的转移阻抗:
由此可得出计算电抗:
'Xjs1X11Sn150000.0710.5 Sj100S400/0.85'XjG23Xt'141n0.0060.22Sj100 S400/0.85'XjG45Xt'151n0.0590.58Sj100 Sn300/0.85''XjG1Xg10.310.141Sj100
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