某工厂变电所6/0.4kV变压器容量630kV·A,由一回2.2km电缆线路供电,如图所示。低压380/220V母线上接有一动力综合负荷80kW,已知:S oc =150MV·A,X 0 =0.0812/km,R 0 =0.412/km,S NT =630kV·A,U d %=4,cosφ=0.85。试求k 1 点及k 2 点的短路参数。
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