某变电所由系统供给电源,简化接线如图5-4所示。变压器参数:容量120MVA,S

shuhaiku2019-12-17  14

问题 某变电所由系统供给电源,简化接线如图5-4所示。变压器参数:容量120MVA,Sj=100MVA;U xl-2=13.3%。U x1-3=12%, Ux2-3=17.5%;容量比100/100/50。求各侧简化电抗标么值。x1为()。A.0.0315; B.0.0325;C.0.0335; D.0.0345。

选项

答案B

解析先求[img]/upload/tiku/39/8781442_1.jpg[/img][img]/upload/tiku/39/8781442_1_1.jpg[/img][img]/upload/tiku/39/8781442_1_2.jpg[/img]故[img]/upload/tiku/39/8781442_1_3.jpg[/img]
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