某钢铁公司自备电站建有2X60MW热电联产机组,分别以发电机一变压器组单元接线接入厂内110kV配电装置,起备电源从厂内11OkV引接,出线间隔6个。...

作者: rantiku 人气: - 评论: 0
问题 某钢铁公司自备电站建有2X60MW热电联产机组,分别以发电机一变压器组单元接线接入厂内110kV配电装置,起备电源从厂内11OkV引接,出线间隔6个。 110kV配电装置采用了铝管母线,母线穿越功率130MVA,母线计算跨距7.5m,忽略跨中集中荷载,每两跨设一个伸缩接头。宜选用()铝管母线。
选项 A.φ30/25; B.φ40/35, C.φ0/45; D.φ60/54。 弹性模量E=7.1X1O5kg/cm2,φ0/25的自重q1=0.68kg/m。
答案 C
解析 解答过程:
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  • 位置: 第 85 行
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